CN106057861B - OLED display and the method for reducing OLED display power consumption - Google Patents

OLED display and the method for reducing OLED display power consumption Download PDF

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CN106057861B
CN106057861B CN201610644833.0A CN201610644833A CN106057861B CN 106057861 B CN106057861 B CN 106057861B CN 201610644833 A CN201610644833 A CN 201610644833A CN 106057861 B CN106057861 B CN 106057861B
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static
apl value
duration
apl
value
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CN106057861A (en
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徐京
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • 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]

Abstract

A kind of method that the present invention provides OLED display and reduces OLED display power consumption, this method calculates the APL value of the display picture of display panel first, whether change further according to APL value, determine whether display picture is tableaux, when showing picture is tableaux, its corresponding static duration is calculated according to the APL value of tableaux, to which the difference of the APL value according to tableaux determines the different time points into energy-saving mode, realize the higher tableaux of the higher i.e. brightness of APL value, it is more early to enter energy-saving mode, compared with the prior art, power consumption can greatly be saved.The OLED display can determine the different time points into energy-saving mode according to the bright dark degree difference of tableaux, and the higher tableaux of brightness is more early to enter energy-saving mode, to greatly save power consumption.

Description

OLED display and the method for reducing OLED display power consumption
Technical field
The present invention relates to field of display technology more particularly to a kind of OLED display and reduce OLED display power consumption Method.
Background technique
Flat panel display device has many merits such as thin fuselage, power saving, radiationless, is widely used.It is existing Flat panel display device mainly includes liquid crystal display device (Liquid Crystal Display, LCD) and Organic Light Emitting Diode Display device (Organic Light Emitting Display, OLED).
OLED display device generally includes: substrate, the hole injection layer on anode, is set the anode on substrate In the hole transmission layer on hole injection layer, the luminescent layer on hole transmission layer, the electron transfer layer on luminescent layer, Electron injecting layer on electron transfer layer and the cathode on electron injecting layer.The principle of luminosity of OLED display device It is semiconductor material and luminous organic material under electric field driven, passes through carrier injection and composite guide photoluminescence.Specifically, OLED display device generallys use ITO pixel electrode and metal electrode respectively as the anode and cathode of device, in certain voltage Under driving, electrons and holes are injected into electron transfer layer and hole transmission layer, electrons and holes difference from cathode and anode respectively Luminescent layer is moved to by electron transfer layer and hole transmission layer, and is met in luminescent layer, exciton is formed and makes light emitting molecule Excitation, the latter issue visible light by radiative relaxation.
OLED display device is not required to that backlight, contrast are high, thickness is thin, visual angle is wide, react due to being provided simultaneously with self-luminous The excellent characteristics such as speed is fast, it is wide to can be used for flexibility panel, use temperature range, construction and processing procedure are simpler, it is considered to be under The emerging application technology of generation flat-panel screens.
Although OLED display device advantages, there is also disadvantages, such as: the power consumption of OLED display device is high, is easy Aging.For this problem, common solution first is that: according to display picture average picture level (Average Picture Level, APL) whether change, judge picture whether same image of long-time static status display, if so, enter section Energy mode, gradually reduces brightness, until reaching preset value.The average picture level can reflect the light levels of picture.
Although the above method reduces power consumption by way of reducing picture brightness, but there are a drawbacks: no matter The bright dark degree of tableaux is big or small, is all to enter energy-saving mode at same time point.In this way, when showing bright picture, institute The power consumption of saving is limited.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for reducing OLED display power consumption, can be according to tableaux Bright dark degree difference determines the different time points into energy-saving mode, and the higher tableaux of brightness is more early to enter energy saving mould Formula, to greatly save power consumption.
The object of the invention is also to provide a kind of OLED displays, can be different according to the bright dark degree of tableaux Determine the different time points into energy-saving mode, the higher tableaux of brightness is more early to enter energy-saving mode, thus more great Cheng The saving power consumption of degree.
To achieve the above object, the present invention provides a kind of methods for reducing OLED display power consumption, comprising:
Step 1 provides an OLED display, and the OLED display includes: display panel and the display panel Connected APL computing module, the static judgment module being connected with the APL computing module and with static judgment module and aobvious Show the connected luminance adjustment module of panel；
Step 2, driving display panel show image, while setting an initial APL value in static judgment module；
The APL value for the frame image that the display panel is currently shown is calculated in step 3, the APL computing module, and It is supplied to static judgment module；
The APL value for the frame image that step 4, the static judgment module are more currently shown and initial APL value whether phase Together；If not identical, the APL value of the frame image currently shown is set as initial APL value, while continuing to show next frame figure Picture, and return step 3；If they are the same, then judge to show picture currently as static state and set the APL value of the frame image currently shown It is set to static APL value, while the corresponding static duration of static state APL value and timing of starting from scratch is calculated, while continuing to show Show next frame image, and then carries out step 5；
The calculation formula of the static state duration are as follows:
X=(Tmax-Tmin)/(-255)×Y+Tmax；
Wherein, the TmaxFor the preset static duration when static APL value is equal to 0, the TminTo be preset when quiet State APL value is equal to static duration when 255, and Y is the static APL value currently set, and X is that the static APL value currently set corresponds to Static duration, TmaxGreater than Tmin；
Step 5, the static judgment module judge whether the duration of present timing reaches static duration, if not up to static state Duration, and continue step 6；If reaching static duration, step 8 is directly carried out；
The APL value for the frame image that the display panel is currently shown is calculated in step 6, the APL computing module, and It is supplied to static judgment module；
The APL value for the frame image that step 7, the static judgment module are more currently shown and static state APL value whether phase Together；
If they are the same, then continue to show next frame image, and return step 5, if not identical, the frame figure that will currently show The APL value of picture is set as initial APL value, and continues to show next frame image, is simultaneously stopped timing, and return step 3；
The brightness of current display picture is reduced to preset bright by step 8, starting energy-saving mode, the luminance adjustment module Angle value.
It further include brightness regulation coefficients calculation block, the static state judgment module calculates mould via the brightness regulation coefficient Block is connected with luminance adjustment module.
The step 8 specifically includes:
Step 81, starting energy-saving mode and timing of starting from scratch again, the brightness regulation coefficients calculation block is according to working as Static APL value, preset adjustment rate, the duration of present timing and the preset adjustment duration calculation of preceding setting obtain currently Timing the corresponding brightness regulation coefficient of duration, the calculation formula of the brightness regulation coefficient are as follows:
A=(q-1) t/T+1=Y '/Y；
Wherein, A is brightness regulation coefficient, and q is preset adjustment rate, and T is preset adjustment duration, and q is greater than 0 and is less than 1, t is the duration of present timing, and Y ' is the APL value of the corresponding display image of the duration of present timing, and Y is the static state currently set APL value；
The brightness regulation coefficient that step 82, the luminance adjustment module are obtained according to brightness regulation coefficients calculation block will work as The brightness of preceding display picture is reduced to preset brightness value.
The method that luminance adjustment module described in the step 82 adjusts the brightness of current display picture are as follows: numerical digit adjusting, Gamma electric voltage is adjusted or OLED power supply is adjusted.
The present invention also provides a kind of OLED displays, comprising: display panel, the APL being connected with display panel meter It calculates module, the static judgment module being connected with the APL computing module and is connected with static judgment module and display panel Luminance adjustment module；
The static state judgment module is used for when the APL value for the two field pictures that the display panel continuously displays is identical, is sentenced The display picture of display panel is determined for static state, and when the display picture of display panel is static, sets the frame currently shown The APL value of image is static state APL value and static duration is calculated according to static APL value, starts simultaneously at timing, and reach in timing To static duration and when the APL value of display panel is shown in timing course image remains static APL value, starting section Can mode, the APL value for the image that display panel show in timing course changes when not remaining static APL value, stopping Timing, whether the display picture for rejudging display panel is static；The luminance adjustment module is used to start in energy-saving mode The brightness of image that display panel is shown is reduced afterwards to preset brightness value；
Wherein, the calculation formula of the static duration are as follows:
X=(Tmax-Tmin)/(-255)×Y+Tmax；
Wherein, the TmaxFor the preset static duration when static APL value is equal to 0, the TminTo be preset when quiet State APL value is equal to static duration when 255, and Y is the static APL value currently set, and X is that the static APL value currently set corresponds to Static duration, TmaxGreater than Tmin。
It further include brightness regulation coefficients calculation block, the static state judgment module calculates mould via the brightness regulation coefficient Block is connected with luminance adjustment module；
The brightness regulation coefficients calculation block is used to after energy-saving mode starting start from scratch again timing, and according to working as Static APL value, preset adjustment rate, the duration of present timing and the preset adjustment duration calculation of preceding setting obtain currently Timing the corresponding brightness regulation coefficient of duration, the calculation formula of the brightness regulation coefficient are as follows:
A=(q-1) t/T+1=Y '/Y；
Wherein, A is brightness regulation coefficient, and q is preset adjustment rate, and T is preset adjustment duration, and q is greater than 0 and is less than 1, t is the duration of present timing, and Y ' is the APL value of the corresponding display image of the duration of present timing, and Y is the static state currently set APL value.
The luminance adjustment module reduces current aobvious according to the brightness regulation coefficient that brightness regulation coefficients calculation block obtains Show the brightness of picture to preset brightness value.
The method that the luminance adjustment module adjusts the brightness of current display picture are as follows: numerical digit is adjusted, gamma electric voltage is adjusted, Or OLED power supply is adjusted.
Beneficial effects of the present invention: the present invention provides a kind of method for reducing OLED display power consumption, this method is first Whether the APL value for first calculating the display picture of display panel, change further according to APL value, determines whether display picture is static picture When showing picture is tableaux its corresponding static duration is calculated according to the APL value of tableaux, thus root in face The different time points into energy-saving mode are determined according to the difference of the APL value of tableaux, realize that the higher i.e. brightness of APL value is higher Tableaux, it is more early enter energy-saving mode can greatly save power consumption compared with the prior art.The present invention also mentions OLED display has been supplied, can determine the different times into energy-saving mode according to the bright dark degree difference of tableaux Point, the higher tableaux of brightness is more early to enter energy-saving mode, to greatly save power consumption.
Detailed description of the invention
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is the schematic diagram of OLED display of the invention；
Fig. 2 is the flow chart of the method for reduction OLED display power consumption of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention Example and its attached drawing are described in detail.
Referring to Fig. 2, the present invention provides a kind of method for reducing OLED display power consumption, comprising:
Step 1, referring to Fig. 1, provide an OLED display, the OLED display include: display panel 1, with The display panel 1 connected APL computing module 2, the static judgment module 3, the Yi Jiyu that are connected with the APL computing module 2 The luminance adjustment module 4 that static judgment module 3 is connected with display panel 1；
Step 2, driving display panel 1 show image, while setting an initial APL value in static judgment module 3；
The APL value for the frame image that the display panel 1 is currently shown is calculated in step 3, the APL computing module 2, And it is supplied to static judgment module 3；
The APL value for the frame image that step 4, the static judgment module 3 are more currently shown and initial APL value whether phase Together；If not identical, the APL value of the frame image currently shown is set as initial APL value, while continuing to show next frame figure Picture, and return step 3；If they are the same, then judge to show picture currently as static state and set the APL value of the frame image currently shown It is set to static APL value, while the corresponding static duration of static state APL value and timing of starting from scratch is calculated, while continuing to show Show next frame image, and then carries out step 5；
The calculation formula of the static state duration are as follows:
X=(Tmax-Tmin)/(-255)×Y+Tmax；
Wherein, the TmaxFor the preset static duration when static APL value is equal to 0, the TminTo be preset when quiet State APL value is equal to static duration when 255, and Y is the static APL value currently set, and X is that the static APL value currently set corresponds to Static duration, TmaxGreater than Tmin.According to the higher tableaux of the higher i.e. brightness of this formula APL value, static duration is got over Short, the more early energy-saving mode that enters can greatly save power consumption compared with the prior art.
For example, before display panel first frame image is shown, initial APL value is preset equal to 10, after starting display, the The APL value of one frame image is 20, then for the APL value of first frame image not equal to initial APL value (10 are not equal to 20), picture is not quiet The APL value of first frame image is then set as initial APL value at this time by state, namely initial APL value becomes 20 from 10, continues normal It has been shown that, the APL value of the second frame image are 30, then the APL value of the second frame image is also not equal to initial APL value (20 are not equal to 30), Picture is not static state, and the APL value of the second frame image is then set as initial APL value at this time, namely initial APL value is become from 20 30, continue normal display, the APL value of third frame image is 30, then (30 are equal to the APL value of third frame image equal to initial APL value 30), picture is static, the APL value of third frame image is then set as static APL value at this time, and according to the static APL for being equal to 30 Value calculates it and corresponds to static duration, while timing of starting from scratch.
Step 5, the static judgment module 3 judge whether the duration of present timing reaches static duration, if not up to quiet State duration, and continue step 6；If reaching static duration, step 8 is directly carried out；
The APL value for the frame image that the display panel 1 is currently shown is calculated in step 6, the APL computing module 2, And it is supplied to static judgment module 3；
The APL value for the frame image that step 7, the static judgment module 3 are more currently shown and static state APL value whether phase Together；
If they are the same, then continue to show next frame image, and return step 5, if not identical, the frame figure that will currently show The APL value of picture is set as initial APL value, and continues to show next frame image, is simultaneously stopped timing, and return step 3.
Then above-mentioned example is illustrated, it is assumed that the static APL value equal to 30 is 5 seconds a length of when calculated static, then exists In 5s after starting timing, if the APL value for each frame image that display panel is shown is 30, after timing reaches 5s, open Dynamic energy-saving mode, if having the APL value of a frame image in timing course not equal to 30, such as in the third second, occurring one The APL value of frame image is equal to 25, then directly stops timing at this time, and be set as initial APL value for 25, return to step 3 and open again Begin one to recycle, that is, re-start APL value and compare, determine tableaux, determine static state APL value, calculates static duration, starting meter When circulation.
The brightness of current display picture is reduced to preset by step 8, starting energy-saving mode, the luminance adjustment module 4 Brightness value.
Specifically, the step 8 includes:
Step 81, starting energy-saving mode and timing of starting from scratch again, the brightness regulation coefficients calculation block 5 is according to working as Static APL value, preset adjustment rate, the duration of present timing and the preset adjustment duration calculation of preceding setting obtain currently Timing the corresponding brightness regulation coefficient of duration, the calculation formula of the brightness regulation coefficient are as follows:
A=(q-1) t/T+1=Y '/Y；
Wherein, A is brightness regulation coefficient, and q is preset adjustment rate, and T is preset adjustment duration, and q is greater than 0 and is less than 1, t is the duration of present timing, and Y ' is the APL value of the corresponding display image of the duration of present timing, and Y is the static state currently set APL value.That is it needs within the period that length is T, the APL value of current display image is reduced to q × Y, such as T from Y Equal to 3 seconds, when q is equal to 0.6, that is need in 3 seconds the APL value of current display image being reduced to 0.6Y from Y, at this time the 1 second brightness regulation coefficient A be equal to 13/15, the duration of present timing it is corresponding display image APL value Y ' be 13/15Y, the 2nd Second brightness regulation coefficient A be equal to 11/15, the duration of present timing it is corresponding display image APL value Y ' be 11/15Y, the 3rd The brightness regulation coefficient A of second is equal to 0.6, and the APL value Y ' of the corresponding display image of the duration of present timing is 0.6Y, namely with every The speed of second 2/15Y reduces the APL value of current display image.
Step 82, the luminance adjustment module 4 will according to the brightness regulation coefficient that brightness regulation coefficients calculation block 5 obtains The brightness of current display picture is reduced to preset brightness value.
Specifically, the method that luminance adjustment module 4 described in the step 82 reduces the brightness of current display picture are as follows: number The various adjusting methods such as position is adjusted, gamma electric voltage is adjusted or OLED power supply is adjusted.
Referring to Fig. 1, the present invention also provides a kind of OLED displays, comprising: display panel 1 and the display panel 1 Connected APL computing module 2, the static judgment module 3 being connected with the APL computing module 2 and with static judgment module 3 The luminance adjustment module 4 being connected with display panel 1.
Specifically, the OLED display further includes brightness regulation coefficients calculation block 5, the static state judgment module 3 It is connected via the brightness regulation coefficients calculation block 5 with luminance adjustment module 4.
Wherein, the APL computing module 2 is used to calculate the APL value of the image of the display of display panel 1.
The static state judgment module 3 is used for when the APL value for the two field pictures that the display panel 1 continuously displays is identical, The display picture for determining display panel 1 is static state, and when the display picture of display panel 1 is static, what setting was currently shown The APL value of one frame image is static state APL value and static duration is calculated according to static APL value, starts simultaneously at timing, and counting When reach static duration and when display panel 1 is shown in timing course the APL value of image remains static APL value, Start energy-saving mode, the APL value for the image that display panel 1 is shown in timing course, which changes, does not remain static APL value When, stop timing, whether the display picture for rejudging display panel 1 is static；The luminance adjustment module 4 is used in energy conservation The brightness for the image that display panel 1 is shown is reduced after mode starting to preset brightness value；
Wherein, the calculation formula of the static duration are as follows:
X=(Tmax-Tmin)/(-255)×Y+Tmax；
Wherein, the TmaxFor the preset static duration when static APL value is equal to 0, the TminTo be preset when quiet State APL value is equal to static duration when 255, and Y is the static APL value currently set, and X is that the static APL value currently set corresponds to Static duration, TmaxGreater than Tmin.According to the higher tableaux of the higher i.e. brightness of this formula APL value, static duration is got over Short, the more early energy-saving mode that enters can greatly save power consumption compared with the prior art.
The brightness regulation coefficients calculation block is used to after energy-saving mode starting start from scratch again timing, and according to working as Static APL value, preset adjustment rate, the duration of present timing and the preset adjustment duration calculation of preceding setting obtain currently Timing the corresponding brightness regulation coefficient of duration, the calculation formula of the brightness regulation coefficient are as follows:
A=(q-1) t/T+1=Y '/Y；
Wherein, A is brightness regulation coefficient, and q is preset adjustment rate, and T is preset adjustment duration, and q is greater than 0 and is less than 1, t is the duration of present timing, and Y ' is the APL value of the corresponding display image of the duration of present timing, and Y is the static state currently set APL value.That is it needs within the period that length is T, the APL value of current display image is reduced to q × Y, such as T from Y Equal to 3 seconds, when q is equal to 0.6, that is need in 3 seconds the APL value of current display image being reduced to 0.6Y from Y, at this time the 1 second brightness regulation coefficient A be equal to 13/15, the duration of present timing it is corresponding display image APL value Y ' be 13/15Y, the 2nd Second brightness regulation coefficient A be equal to 11/15, the duration of present timing it is corresponding display image APL value Y ' be 11/15Y, the 3rd The brightness regulation coefficient A of second is equal to 0.6, and the APL value Y ' of the corresponding display image of the duration of present timing is 0.6Y, namely with every The speed of second 2/15Y reduces the APL value of current display image.
The luminance adjustment module 4 reduces current according to the brightness regulation coefficient that brightness regulation coefficients calculation block 5 obtains Show the brightness of picture to preset brightness value.
The method that the luminance adjustment module 4 reduces the brightness of current display picture are as follows: numerical digit adjusting, gamma electric voltage tune Section or OLED power supply are adjusted.
For example, the APL value of first frame image is 20 after starting display, the APL value of the second frame image is 30, third The APL value of frame image is 30, then since third frame, judges that current display picture is static, and set static APL value and be equal to 30, so that calculating it according to the static APL value equal to 30 corresponds to static duration, and start timing, it is assumed that the static state equal to 30 APL value is 5 seconds a length of when calculated static, then is starting in the 5s after timing, if each frame image that display panel 1 is shown APL value is 30, then after timing reaches 5s, starts energy-saving mode, if having the APL of a frame image in timing course Value is not equal to 30, such as in the third second, and the APL value for a frame image occur is equal to 25, then directly stops timing at this time, compare again Whether more subsequent each frame is identical as the APL value of its former frame picture, rejudges tableaux, calculates quiet hour, weight New timing.
After energy-saving mode starting, brightness regulation coefficient, the brightness is calculated in the brightness regulation coefficients calculation block 5 Adjustment module 4 reduces the brightness of current display picture extremely according to the brightness regulation coefficient that brightness regulation coefficients calculation block 5 obtains Preset brightness value.
In conclusion the present invention provides a kind of method for reducing OLED display power consumption, this method calculates aobvious first Whether the APL value for showing the display picture of panel, change further according to APL value, determines whether display picture is tableaux, is being shown When picture is tableaux, its corresponding static duration is calculated according to the APL value of tableaux, thus according to tableaux The difference of APL value determine the different time points into energy-saving mode, realize that higher static of the higher i.e. brightness of APL value is drawn Face, the more early energy-saving mode that enters can greatly save power consumption compared with the prior art.The present invention also provides OLED Display device can determine the different time points into energy-saving mode according to the bright dark degree difference of tableaux, and brightness is got over High tableaux, it is more early to enter energy-saving mode, to greatly save power consumption.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention Protection scope.

Claims (8)

1. a kind of method for reducing OLED display power consumption characterized by comprising
Step 1 provides an OLED display, and the OLED display includes: display panel (1) and the display panel (1) connected average picture level (APL) computing module (2), the static judgment module being connected with the APL computing module (2) (3) and with static judgment module (3) and display panel (1) luminance adjustment module (4) being connected；
Step 2, driving display panel (1) show image, while an initial APL value is set in static judgment module (3)；
The APL value for the frame image that the display panel (1) is currently shown is calculated in step 3, the APL computing module (2), And it is supplied to static judgment module (3)；
The APL value for the frame image that step 4, the static judgment module (3) more currently show and initial APL value whether phase Together；If not identical, the APL value of the frame image currently shown is set as initial APL value, while continuing to show next frame figure Picture, and return step 3；If they are the same, then judge to show picture currently as static state and set the APL value of the frame image currently shown It is set to static APL value, while the corresponding static duration of static state APL value and timing of starting from scratch is calculated, while continuing to show Show next frame image, and then carries out step 5；
The calculation formula of the static state duration are as follows:
X=(Tmax-Tmin)/(-255)×Y+Tmax；
Wherein, the TmaxFor the preset static duration when static APL value is equal to 0, the TminTo be preset as static state APL Value is equal to static duration when 255, and Y is the static APL value currently set, and X is the corresponding static state of static APL value currently set Duration, TmaxGreater than Tmin；
Step 5, the static judgment module (3) judge whether the duration of present timing reaches static duration, if not up to static state Duration, and continue step 6；If reaching static duration, step 8 is directly carried out；
The APL value for the frame image that the display panel (1) is currently shown is calculated in step 6, the APL computing module (2), And it is supplied to static judgment module (3)；
The APL value for the frame image that step 7, the static judgment module (3) more currently show and static state APL value whether phase Together；
If they are the same, then continue to show next frame image, and return step 5, if not identical, by the frame image currently shown APL value is set as initial APL value, and continues to show next frame image, is simultaneously stopped timing, and return step 3；
The brightness of current display picture is reduced to preset bright by step 8, starting energy-saving mode, the luminance adjustment module (4) Angle value.
2. reducing the method for OLED display power consumption as described in claim 1, which is characterized in that further include brightness regulation system Number computing module (5), the static state judgment module (3) is via the brightness regulation coefficients calculation block (5) and brightness regulation mould Block (4) is connected.
3. reducing the method for OLED display power consumption as claimed in claim 2, which is characterized in that the step 8 is specifically wrapped It includes:
Step 81, starting energy-saving mode and timing of starting from scratch again, the brightness regulation coefficients calculation block is according to currently setting Fixed static APL value, preset adjustment rate, the duration of present timing and preset adjustment duration calculation obtains current meter When the corresponding brightness regulation coefficient of duration, the calculation formula of the brightness regulation coefficient are as follows:
A=(q-1) t/T+1=Y '/Y；
Wherein, A is brightness regulation coefficient, and q is preset adjustment rate, and T is preset adjustment duration, and q is greater than 0 and less than 1, t For the duration of present timing, Y ' is the APL value of the corresponding display image of the duration of present timing, and Y is the static APL currently set Value；
Step 82, the luminance adjustment module (4) will according to the brightness regulation coefficient that brightness regulation coefficients calculation block (5) obtains The brightness of current display picture is reduced to preset brightness value.
4. reducing the method for OLED display power consumption as claimed in claim 3, which is characterized in that described in the step 82 The method that luminance adjustment module (4) reduces the brightness of current display picture are as follows: numerical digit is adjusted, gamma electric voltage is adjusted or OLED electricity Source is adjusted.
5. a kind of OLED display characterized by comprising display panel (1), be connected with the display panel (1) it is flat Equal picture level (APL) computing module (2), the static judgment module (3) being connected with the APL computing module (2) and with it is quiet The luminance adjustment module (4) that state judgment module (3) is connected with display panel (1)；
The APL computing module (2) is used to calculate the APL value of the image of display panel (1) display；
The static state judgment module (3) is used for when the APL value for the two field pictures that the display panel (1) continuously displays is identical, The display picture for determining display panel (1) is static state, and when the display picture of display panel (1) is static, is set current aobvious The APL value of the frame image shown is static state APL value and static duration is calculated according to static APL value, starts simultaneously at timing, and Static APL is remained in the APL value for the image that timing reaches static duration and display panel (1) is shown in timing course When value, start energy-saving mode, in timing course display panel (1) show image APL value change do not remain it is quiet When state APL value, stop timing, whether the display picture for rejudging display panel (1) is static；The luminance adjustment module (4) for the brightness of the image of reduction display panel (1) display after energy-saving mode starting to preset brightness value；
Wherein, the calculation formula of the static duration are as follows:
X=(Tmax-Tmin)/(-255)×Y+Tmax；
Wherein, the TmaxFor the preset static duration when static APL value is equal to 0, the TminTo be preset as static state APL Value is equal to static duration when 255, and Y is the static APL value currently set, and X is the corresponding static state of static APL value currently set Duration, TmaxGreater than Tmin。
6. OLED display as claimed in claim 5, which is characterized in that it further include brightness regulation coefficients calculation block (5), The static state judgment module (3) is connected via the brightness regulation coefficients calculation block (5) with luminance adjustment module (4)；
The brightness regulation coefficients calculation block (5) is used to after energy-saving mode starting start from scratch again timing, and according to working as Static APL value, preset adjustment rate, the duration of present timing and the preset adjustment duration calculation of preceding setting obtain currently Timing the corresponding brightness regulation coefficient of duration, the calculation formula of the brightness regulation coefficient are as follows:
A=(q-1) t/T+1=Y '/Y；
Wherein, A is brightness regulation coefficient, and q is preset adjustment rate, and T is preset adjustment duration, and q is greater than 0 and less than 1, t For the duration of present timing, Y ' is the APL value of the corresponding display image of the duration of present timing, and Y is the static APL currently set Value.
7. OLED display as claimed in claim 6, which is characterized in that the luminance adjustment module (4) is according to brightness tune The brightness regulation coefficient that section coefficients calculation block (5) obtains reduces the current brightness for showing picture to preset brightness value.
8. OLED display as claimed in claim 7, which is characterized in that the luminance adjustment module (4) reduces current aobvious Show the method for the brightness of picture are as follows: numerical digit is adjusted, gamma electric voltage is adjusted or OLED power supply is adjusted.
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