CN109285508A - A kind of driving method of display device, drive system and display device - Google Patents
A kind of driving method of display device, drive system and display device Download PDFInfo
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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Abstract
The application is suitable for field of display technology, provide driving method, drive system and the display device of a kind of display device, wherein, the driving method includes: to obtain the measurement voltage of divider resistance in the backlight module when display device is in current picture and shows state；By the measurement voltage compared with normal voltage, the absolute value of the difference of the measurement voltage Yu normal voltage is obtained；If the absolute value of the difference is greater than predetermined voltage threshold, control signal is exported, backlight module is controlled and drive module carries out picture adjusting.The embodiment of the present application can judge the exception of display device picture, realize reparation and adjusting to picture, improve picture display effect, extend the service life of display device, improve picture quality by the measurement voltage of divider resistance and corresponding normal voltage.
Description
Technical field
The application belongs to field of display technology more particularly to a kind of driving method of display device, drive system and display
Device.
Background technique
With the continuous development of science and technology, various display devices emerge one after another, and bring for people's production and life life
Great convenience.For example, TFT-LCD (Thin Film Transistor-LCD, thin film transistor-liquid
Crystal display), the backlight of TFT-LCD generally use by light emitting diode (Light Emitting Diode,
LED the backlight lamp bar) being composed.
However, a large amount of heat can be generated in the course of work due to the characteristic of light emitting diode, make backlight lamp bar aging,
Display device is caused to be easy to appear partially blue picture, so that the display effect of display device reduces or display effect is abnormal.
Summary of the invention
In view of this, the embodiment of the present application provides driving method, drive system and the display device of a kind of display device,
To solve backlight lamp bar aging, display device is caused to be easy to appear partially blue picture so that the display effect of display device reduce or
The problem of display effect exception.
The embodiment of the present application provides a kind of driving method of display device, wherein the display device includes backlight mould
Group, the backlight module are provided with divider resistance；The driving method includes:
When display device is in current picture and shows state, the actual measurement electricity of divider resistance in the backlight module is obtained
Pressure；
By the measurement voltage compared with normal voltage, the absolute value of the difference of the measurement voltage Yu normal voltage is obtained；
If the absolute value of the difference is greater than predetermined voltage threshold, control signal, control backlight module and driving mould are exported
Block carries out picture adjusting.
In one embodiment, the display device further includes analog-digital converter；
When display device is in current picture and shows state, the measurement voltage of divider resistance in the backlight module is obtained
Later, comprising:
The measurement voltage is subjected to analog-to-digital conversion by the analog-digital converter, is obtained corresponding with the measurement voltage
Digital signal.
In one embodiment, the measurement voltage compared with normal voltage, is being obtained into the measurement voltage and standard
Before the absolute value of difference in voltage, comprising:
The corresponding relationship of state and the normal voltage is shown according to picture, is obtained and is shown state pair with the current picture
The normal voltage answered.
In one embodiment, the backlight module further includes brightness register；
If the absolute value of the difference is greater than predetermined voltage threshold, control signal, control backlight module and driving mould are exported
Block carries out picture adjusting, comprising:
Luminance delta and amount of chroma change are calculated according to the measurement voltage and the normal voltage；
First control signal is exported to the brightness register according to the luminance delta, carries out picture brightness adjusting；
Second control signal is exported to drive module according to the amount of chroma change, carries out picture chromenence adjusting.
In one embodiment, the driving method of the display device further include:
It obtains the picture after adjusting and shows information, judge to show whether information meets normal display standard；
If the display information does not meet normal display standard, continue the reality for obtaining divider resistance in the backlight module
Survey voltage；
If the display information meets normal display standard, terminate to adjust.
The application another embodiment provides a kind of drive system of display device, wherein the display device includes back
Optical mode group, the backlight module are provided with divider resistance；The drive system includes:
First module is set as obtaining in the backlight module and dividing when display device is in current picture and shows state
The measurement voltage of piezoresistance；
Second module is set as the measurement voltage compared with normal voltage, obtains the measurement voltage and standard electric
The absolute value of the difference of pressure；
Third module exports control signal, control back if being set as the absolute value of the difference greater than predetermined voltage threshold
Optical mode group and drive module carry out picture adjusting.
In one embodiment, the drive system of the display device further include:
Analog-digital converter, be set as by the analog-digital converter by the measurement voltage carry out analog-to-digital conversion, obtain with
The corresponding digital signal of the measurement voltage.
In one embodiment, the drive system of the display device further include:
4th module is set as showing the corresponding relationship of state and the normal voltage according to picture, and acquisition is worked as with described
Preceding picture shows the corresponding normal voltage of state.
In one embodiment, the drive system of the display device further include:
5th module is set as obtaining the picture after adjusting and shows information, judges to show whether information meets normal display
Standard；If the display information meets normal display standard, terminate to adjust；
First module continues described in acquisition if being also configured to the display information does not meet normal display standard
The measurement voltage of divider resistance in backlight module.
The another embodiment of the application provides a kind of display device, including drive system described above；Further include
Memory and storage in memory and the computer program that can be run in control module, described in the control module execution
The step of driving method described above is realized when computer program.
The embodiment of the present application is divided by when display device is in current picture display effect, obtaining in the backlight module
The measurement voltage of piezoresistance；By the measurement voltage compared with normal voltage, the difference of the measurement voltage and normal voltage is obtained
Absolute value；If the absolute value of the difference is greater than predetermined voltage threshold, control signal, control backlight module and driving mould are exported
Block carries out picture adjusting；It realizes the compensation and improvement to picture display effect, extends the service life of display device, improve picture
Quality.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the signal transmission schematic diagram that the driving method that one embodiment of the application provides is applied to display device；
Fig. 2 is the flow diagram for the driving method that one embodiment of the application provides；
Fig. 3 is the part circuit structure schematic diagram for the display device that one embodiment of the application provides；
Fig. 4 is the flow diagram for the driving method that one embodiment of the application provides；
Fig. 5 is the structural schematic diagram for the drive system that one embodiment of the application provides；
Fig. 6 is the structural schematic diagram for the display device that one embodiment of the application provides.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application are explicitly described, it is clear that described embodiment is the application one
The embodiment divided, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present application.
The description and claims of this application and term " includes " and their any deformations in above-mentioned attached drawing, meaning
Figure, which is to cover, non-exclusive includes.Such as process, method or system comprising a series of steps or units, product or equipment do not have
It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap
Include the other step or units intrinsic for these process, methods, product or equipment.In addition, term " first ", " second " and
" third " etc. is for distinguishing different objects, not for description particular order.
In the field TFT-LCD, the backlight of display using be the backlight lamp bar as made of light emitting diode combined.
Light emitting diode is that gallium nitride GaN chip and yttrium-aluminium-garnet (Yttrium Aluminum Garnet, YAG) are encapsulated in one
It rises and is made.GaN chip emission blue light, YAG fluorescent powder issue yellow light beam after being excited by this blue light.Blue-ray LED substrate is mounted on
In bowl-type reflection cavity, reflection cavity is covered to be mixed with the thin resin layer of YAG, the volume blue light components that LED substrate issues are inhaled by fluorescent powder
It receives, another part blue light is mixed with the yellow light that fluorescent powder issues, and obtains white light.In the backlight course of work, LED light bar is generated
Heat will lead to the effect of fluorescent powder and change, make lamp bar aging, more blue light occur, picture shows that colour temperature is colder,
Cause picture display effect abnormal.
In one embodiment, under the current display state of display device, obtain the voltage of backlight module, by voltage with
Normal voltage comparison judgement, wherein normal voltage is voltage corresponding with current display state, according to judgement as a result, to backlight
The brightness of mould group compensates and improves, and by control drive module, adjusts data voltage, carries out to the coloration of picture corresponding
Adjustment improves the total quality that picture is shown.
In one embodiment, data voltage is the voltage of data driving chip output, and data driving chip can be
Source driving chip (Source Driver IC).Different voltage differences corresponds to different grayscale, to adjust the colour temperature of picture, just
The corresponding pixel value of picture is adjusted, i.e., RGB rgb value in each pixel makes data driving chip export different size of number
According to voltage.
In one embodiment, judged by the voltage to backlight module, calculate luminance gain, and be transmitted to brightness and post
Storage drives the output voltage of display panel, adjusts the brightness of backlight module.
As shown in Figure 1, the signal transmission that the driving method that one embodiment of the application provides is applied to display device is shown
It is intended to, for ease of description, illustrates only part relevant to embodiment.
It includes control module 10, backlight module 11, drive module 12 and display panel 13 that Fig. 1, which shows display device,；Its
Middle control module 10 is electrically connected with backlight module 11, and backlight module 11 is electrically connected with display panel 13, control module 10 and driving
Module 12 is electrically connected, and drive module 12 is electrically connected with display panel 13；The voltage of backlight module 11, warp are obtained by control module 10
The comparison judgement with normal voltage is crossed, corresponding luminance gain driving signal and cHroma gain driving signal are calculated；It will be bright
Degree gain signal is transmitted to backlight module 11, carries out brightness regulation；CHroma gain driving signal is transmitted to drive module 12, is made
Driving voltage is transmitted to display panel 13, carries out coloration adjusting by drive module outputting drive voltage；It realizes and effect is shown to picture
The improvement of fruit improves picture quality.
As shown in Fig. 2, the flow diagram for the driving method that one embodiment of the application provides.The driving method application
It is adjusted in the picture of display device, picture display brightness caused by improving because of backlight lamp bar aging is lower and what colour temperature turned cold shows
Show effect, can effectively solve the problems, such as that display device because backlight lamp bar aging causes picture partially blue, eliminates color error ratio phenomenon,
Improve picture quality.The display device includes backlight module, and the backlight module is provided with divider resistance, and the present embodiment is mentioned
The driving method of confession includes the following steps executed by the control module and drive module of display device:
Step S101 obtains divider resistance in the backlight module when display device is in current picture and shows state
Measurement voltage.
In one embodiment, display device includes display panel, drive module, control module and backlight module；Driving
Module is electrically connected with display panel, and control module is electrically connected with drive module, and control module is electrically connected with backlight module, backlight mould
Group is electrically connected with display panel；Backlight module is provided with divider resistance, and the partial pressure of two series connections is arranged at backlight electric power
Resistance, the first divider resistance RmWith the second divider resistance Rn。
Wherein, the first divider resistance RmGreater than the second divider resistance Rn, the measurement voltage is second resistance RnPartial pressure.
The part circuit structure schematic diagram for the display device that one embodiment as shown in Figure 3 provides, by the first divider resistance RmWith
Two divider resistance RnIt is series at the power supply of backlight module, the measurement voltage of the second divider resistance, warp is obtained by control module 10
Modulus AD converter 101 is crossed, by the corresponding digital data transmission of measurement voltage to microprocessor 102.Wherein the first divider resistance
RmCan value be 150K, the second divider resistance RnCan value be 10K.The current picture shows that state includes that the picture of setting is shown
The brightness and chrominance information shown, luminance information can be any brightness value in 0-100, and chrominance information, which can be in 0-255, appoints
One grayscale value shows state by the current picture of setting, obtains corresponding measurement voltage.
It should be noted that the voltage of backlight module determines the bright dark of backlight module, the bright shadow of backlight module rings picture
The brightness of display；The driving signal of drive module determines the chrominance information of display panel；The picture for obtaining setting shows state pair
The measurement voltage for the divider resistance answered controls the voltage of backlight module and the driving signal of drive module.
In one embodiment, the display device further includes analog-digital converter, is in current picture in display device
When display state, obtain in the backlight module after the measurement voltage of divider resistance, comprising:
The measurement voltage is subjected to analog-to-digital conversion by the analog-digital converter, is obtained corresponding with the measurement voltage
Digital signal.
In one embodiment, the measurement voltage of acquisition is that analog signal believes analog voltage by modulus AD converter
Digital signal number is converted to, then by digital data transmission to processing unit, such as microprocessor, carries out Data Analysis Services.
Step S102 obtains the difference of the measurement voltage and normal voltage by the measurement voltage compared with normal voltage
Absolute value.
In one embodiment, when the normal voltage is that display device picture shows normal, the backlight module of acquisition
Partial pressure；The corresponding normal voltage of each brightness value, such as when backlight brightness values are 100, measure the second divider resistance Rn
The partial pressure at place is 3 volts, it is determined that when backlight module partial pressure is 3 volts, the picture of brightness value 100 can be made normally to show；Accordingly
Modulus AD converter read data be up to 0xE7.
In addition, for other brightness values, it is same to obtain normal voltage corresponding with brightness value such as normal in display state
When, normal voltage corresponding to brightness value 0-100 is obtained, and corresponding normal voltage is subjected to analog-to-digital conversion, obtains 0-0xE7
Digital signal, brightness value and digital signal are established into one-to-one relationship, and corresponding relationship is stored.
It should be noted that display device after a period of work, measurement voltage be less than or equal to corresponding standard electric
Pressure, corresponding relationship are as follows:
Wherein, VccIt is the supply voltage of backlight module, viFor the normal voltage of a certain brightness value of correspondence,For the corresponding measurement voltage of the brightness value.Wherein, the first divider resistance RmWith the second divider resistance RnResistance value
It type can specifically be set according to the display device, under normal display state, the partial pressure of acquisition is corresponding with display state.
First divider resistance RmResistance value can be 150K, the second divider resistance RnResistance value be 10K.The value of divider resistance can basis
The actual type of display device is specifically set, and is not specifically limited herein.
In one embodiment, by measurement voltage compared with normal voltage, the absolute value of the difference of the two is obtained, according to voltage
Difference judges whether to need to carry out the adjusting that picture is shown, and determines the yield value of the adjusting specifically needed.
In one embodiment, the measurement voltage compared with normal voltage, is being obtained into the measurement voltage and standard
Before the absolute value of difference in voltage, comprising:
The corresponding relationship of state and the normal voltage is shown according to picture, is obtained and is shown state pair with the current picture
The normal voltage answered.
In one embodiment, display state includes the luminance information and chrominance information of picture, shows state according to picture
With the corresponding relationship of normal voltage, standard voltage value corresponding with the luminance information of picture and chrominance information is obtained.Display dress
The control module set further includes memory, and memory is stored with the one-to-one relationship that picture shows state and normal voltage, institute
State the corresponding relationship of the corresponding relationship that corresponding relationship includes brightness and normal voltage and coloration and normal voltage, such as brightness value
0-100 and normal voltage 0-3 volt corresponds and coloration 0-255 is corresponded with normal voltage 0-3 volt is answered.
Step S103 exports control signal if the absolute value of the difference is greater than predetermined voltage threshold, controls backlight module
Picture adjusting is carried out with drive module.
In one embodiment, the predetermined voltage threshold adjustable surplus according to display device is set, such as
The upper piezoelectric voltage of the control module of display device is 3.3 volts, in the state that display panel shows normal, the measurement voltage of acquisition
Be 3 volts, for ensure display device whole system reliability, determine that the adjustable surplus of display device is 0.3 volt, i.e., default electricity
Pressure threshold value can be set to 0.3 volt.
Display device current picture show state, control module read measurement voltage, calculate measurement voltage with it is right
The absolute value of the difference for the normal voltage answered exports control signal if absolute value of the difference is greater than predetermined voltage threshold, carries out picture
The adjusting of display.The control signal is analyzed and processed the picture currently shown according to voltage difference, calculates corresponding adjusting
Value, controls backlight module and drive module carries out the adjusting of picture.
In one embodiment, the backlight module further includes brightness register；The application one implementation as shown in Figure 4
Example provides the flow diagram of driving method, if the absolute value of the difference is greater than predetermined voltage threshold, exports control signal, controls
Backlight module processed and drive module carry out picture adjusting, comprising:
Step S201 calculates luminance delta and amount of chroma change according to the measurement voltage and the normal voltage.
In one embodiment, when picture shows normal, the corresponding normal voltage of each brightness value；For example, controlling
When inside modules setting brightness value is 100, measurement voltage is obtained, measurement voltage and normal voltage are made the difference, obtains the absolute of difference
Value, according to the corresponding relationship of voltage and brightness, calculates luminance gain regulated value if absolute value of the difference is more than preset threshold 0.3,
According to the corresponding relationship of voltage and coloration, cHroma gain regulated value is calculated.
It should be noted that setting brightness value can be any of 0-100 brightness value inside control module, for carrying on the back
The partial pressure of concatenated resistance at optical mode group power supply, the corresponding normal voltage of each brightness value, when picture shows that appearance is abnormal,
Control module can detecte corresponding measurement voltage, measurement voltage with the reduction of picture intrinsic brilliance relative to normal voltage and
Reduce.In order to guarantee reliability that display device picture is shown, it is also an option that multiple brightness values or chromatic value carry out it is corresponding
It adjusts, improves picture quality comprehensively.
Step S202 exports first control signal to the brightness register according to the luminance delta, carries out picture
Brightness regulation；
In one embodiment, the first control signal can be voltage signal, will be with luminance gain regulated value pair
The voltage signal answered is transmitted to brightness register, changes the voltage output value in brightness register, by brightness register output with
The corresponding voltage signal of luminance gain regulated value drives backlight module, carries out the brightness regulation that picture is shown.
Step S203 exports second control signal to drive module according to the amount of chroma change, carries out picture chromenence tune
Section.
In one embodiment, second control signal can be voltage signal needed for data line in driving display panel,
Voltage signal corresponding with cHroma gain regulated value is transmitted to drive module, is answered by drive module according to voltage signal output phase
Driving signal, drive the data line of display panel, carry out picture coloration adjust.It should be noted that driving signal is big
The grayscale of pixel in small decision display panel changes the corresponding grayscale value of pixel, realizes to picture by adjusting driving signal
Coloration is adjusted.
In one embodiment, the driving method of the display device, further includes:
It obtains the picture after adjusting and shows information, judge to show whether information meets normal display standard；
If the display information does not meet normal display standard, continue the reality for obtaining divider resistance in the backlight module
Survey voltage；
If the display information meets normal display standard, terminate to adjust.
In one embodiment, display device further includes image processor, by image processor to the picture after adjusting into
Row analysis judges to show whether information meets normal display standard；The normal display standard, normally to be shown under normal voltage
The corresponding picture brightness value of state and chromatic value.After overregulating, judge that picture shows whether restore normal；If restoring normal
Then terminate to adjust；If it is back to normal that picture shows that state does not have after overregulating, then continue the corresponding reality for acquiring divider resistance
Survey voltage, by measurement voltage and corresponding normal voltage comparative analysis, further output control signal, driving backlight module and
The adjusting of display panel progress brightness and coloration.
Through this embodiment, at the power supply of backlight module connect divider resistance, by a certain setting brightness value or
Chromatic value obtains the partial pressure value and corresponding standard voltage value of corresponding actual measurement；By the partial pressure value and mark of actual measurement
Quasi- voltage value compares, and judges whether to be more than predetermined voltage threshold, if being more than predetermined voltage threshold, according to the partial pressure of actual measurement
The absolute value of the difference of value and standard voltage value calculates corresponding bright gain and cHroma gain, carries out brightness and coloration to picture
Adjustment, improve picture display effect, reduce aging of the display device because of backlight lamp bar injuring caused by eyes, extend display
The service life of device improves picture quality.
As shown in figure 5, one embodiment of the application provides a kind of drive system 100, it is applied to display device, it is described aobvious
Showing device includes backlight module, and the backlight module is provided with divider resistance；Wherein, display device includes display panel 13, drives
Dynamic model block 12, control module 10 and backlight module 11；Drive module 12 is electrically connected with display panel 13, control module 10 and driving
Module 12 is electrically connected, and control module 10 is electrically connected with backlight module 11, and backlight module 11 is electrically connected with display panel 13；
Drive module 12 is connect with display panel 13, is set as the driving method in through the foregoing embodiment to display surface
Plate 13 carries out data-driven；
Control module 10 is connect with drive module 12, the drive being set as in control execution above-described embodiment of drive module 12
Dynamic method；It is connect with backlight module 11, the driving method being set as in control execution above-described embodiment of backlight module 11.
Drive system 100 is used to execute the method and step in embodiment corresponding to Fig. 2 or Fig. 4, the drive system 100
Include:
First module 51 is set as obtaining in the backlight module when display device is in current picture and shows state
The measurement voltage of divider resistance；
Second module 52 is set as the measurement voltage compared with normal voltage, obtains the measurement voltage and standard
The absolute value of difference in voltage；
Third module 53 exports control signal if being set as the absolute value of the difference greater than predetermined voltage threshold, controls
Backlight module and drive module carry out picture adjusting.
In one embodiment, the first module can be with obtain divider resistance measurement voltage value function circuit or
Device, can be by universal integrated circuit, such as CPU (Central Processing Unit, central processing unit), or passes through
ASIC (Application Specific Integrated Circuit, specific integrated circuit) is realized.
In one embodiment, the second module can be with calculate with the circuit or device of logic judging function, can be with
By universal integrated circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC
(Application Specific Integrated Circuit, specific integrated circuit) is realized.
In one embodiment, third module can be the circuit or device for having control function, can pass through generic set
At circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC (Application
Specific Integrated Circuit, specific integrated circuit) it realizes.
In one embodiment, the drive system further include:
Analog-digital converter, be set as by the analog-digital converter by the measurement voltage carry out analog-to-digital conversion, obtain with
The corresponding digital signal of the measurement voltage.
In one embodiment, the drive system further include:
4th module is set as showing the corresponding relationship of state and normal voltage according to picture, obtain and the current picture
Face shows the corresponding normal voltage of state.
In one embodiment, the 4th module can be the circuit or device for having storage and data acquisition functions, can be with
By universal integrated circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC
(Application Specific Integrated Circuit, specific integrated circuit) is realized.
In one embodiment, the drive system further include:
5th module is set as obtaining the picture after adjusting and shows information, judges to show whether information meets normal display
Standard；If the display information meets normal display standard, terminate to adjust；
First module continues described in acquisition if being also configured to the display information does not meet normal display standard
The measurement voltage of divider resistance in backlight module.
In one embodiment, the 5th module is to have the circuit or device for analyzing and determining function, can pass through generic set
At circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC (Application
Specific Integrated Circuit, specific integrated circuit) it realizes.
In one embodiment, drive module can be source driving chip (Source Driver IC), control
Molding block or data-driven component can also by universal integrated circuit, such as CPU (Central Processing Unit, in
Central processor), or pass through ASIC (Application Specific Integrated Circuit, specific integrated circuit), show
Field programmable logic gate device is realized.It is also possible to film source driving chip (S-COF, Source-Chip on Film)
Deng.
In one embodiment, backlight module can be is electrically connected by the lamp bar and brightness register of light emitting diode combined
The integrated circuit or chip of composition are connect, it can be by passing through integrated circuit or passing through ASIC (Application Specific
Integrated Circuit, specific integrated circuit) it realizes.
In one embodiment, control module can be sequence controller (TCON, Timing Controller), can be with
By universal integrated circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC
(Application Specific Integrated Circuit, specific integrated circuit) is realized.It also may include voltage ratio
Compared with device and logic judgment device.
In one embodiment, display device can be any type of display device, such as LCD (Liquid
Crystal Display, liquid crystal display device) display device, OLED (Organic Electroluminesence
Display, Organic Electricity laser display) Organic Electricity laser display apparatus, QLED (Quantum Dot Light Emitting
Diodes, light emitting diode with quantum dots) light emitting diode with quantum dots display device or curved-surface display device etc..Display panel be with
The corresponding display panel of the type of display device.
In one embodiment, display panel includes the optical filtering substrate, pixel array and array substrate being cascading.
In one embodiment, optical filtering substrate can be the substrate that arbitrarily can be realized filtering light action, such as by coloured silk
The colored filter substrate of colo(u)r filter composition.
In one embodiment, pixel array may include the multiple sub-pixels for being regularly arranged into arbitrary shape, such as can
To include regularly arranged rectangular multirow sub-pixel.Every row sub-pixel in pixel array includes multiple groups sub-pixel, and every group
Sub-pixel includes the first color sub-pixels, the second color sub-pixels and third color sub-pixels being arranged successively, and is located at same
The color of the sub-pixel of column is identical, at least one in the first color sub-pixels, the second color sub-pixels and third color sub-pixels
It is a be red sub-pixel, at least one be green sub-pixels and at least one be blue subpixels.
In one embodiment, control module can be sequence controller (TCON, Timing Controller), driving
Module can be source driving chip (Source Driver IC), and control module or data-driven component can also be by general
Integrated circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC (Application
Specific Integrated Circuit, specific integrated circuit), field programmable gate device realizes.
Module or submodule in all embodiments of the application can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, specific integrated circuit) it realizes.
The present embodiment passes through the brightness value or color in a certain setting by divider resistance of connecting at the power supply of backlight module
Angle value obtains the partial pressure value and corresponding standard voltage value of corresponding actual measurement；By the partial pressure value and standard of actual measurement
Voltage value compares, and judges whether to be more than predetermined voltage threshold, if being more than predetermined voltage threshold, according to the partial pressure value of actual measurement
With the absolute value of the difference of standard voltage value, corresponding bright gain and cHroma gain are calculated, brightness and coloration are carried out to picture
Adjustment improves picture display effect, extends the service life of display device, improves picture quality.
As shown in fig. 6, the application one embodiment provides a kind of display device 200, including drive system shown in fig. 5
100, further include memory 30 and storage in memory 30 and the computer program 31 that can be run in drive system 100,
Such as driver.The step of drive system 100 realizes above-mentioned driving method when executing the computer program is such as schemed
Step S101 shown in 2 to step S103.
Illustratively, the computer program 31 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 30, and are executed by the drive system 100, to complete the application.It is described
One or more module/units can be the series of computation machine program instruction section that can complete specific function, which uses
In implementation procedure of the description computer program 31 in the display device 200.For example, the computer program 31 can be with
It is divided into the first module, the second module and third module, each module concrete function is as follows:
First module is set as obtaining in the backlight module and dividing when display device is in current picture and shows state
The measurement voltage of piezoresistance；
Second module is set as the measurement voltage compared with normal voltage, obtains the measurement voltage and standard electric
The absolute value of the difference of pressure；
Third module exports control signal, control back if being set as the absolute value of the difference greater than predetermined voltage threshold
Optical mode group and drive module carry out picture adjusting.
The display device may include, but be not limited only to, drive system 100 and memory 20.Those skilled in the art can
To understand, Fig. 6 is only the example of display device 200, does not constitute the restriction to display device 200, may include than diagram
More or fewer components perhaps combine certain components or different components, such as the display device can also include defeated
Enter output equipment, network access equipment, bus etc..
Alleged drive system 100 can be central processing unit (Central Processing Unit, CPU), can be with
It is other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 30 can be the internal storage unit of the display device 200, such as the hard disk of display device 200
Or memory.The memory 30 is also possible to the External memory equipment of the display device 200, such as the display device 200
The plug-in type hard disk of upper outfit, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital,
SD) block, flash card (Flash Card) etc..Further, the memory 30 can also both include the display device 200
Internal storage unit also includes External memory equipment.The memory 30 is for storing the computer program and the display
Other programs and data needed for device.The memory 30, which can be also used for temporarily storing, have been exported or will export
Data.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
In embodiment provided herein, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as
Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device
Or the INDIRECT COUPLING or communication connection of unit, it can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the application realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..Computer-readable Jie
Matter may include: can carry the computer program code any entity or device, recording medium, USB flash disk, mobile hard disk,
Magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as does not include electric carrier signal and electricity according to legislation and patent practice, computer-readable medium in certain jurisdictions
Believe signal.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (10)
1. a kind of driving method of display device, which is characterized in that the display device includes backlight module, the backlight module
It is provided with divider resistance；The driving method includes:
When display device is in current picture and shows state, the measurement voltage of divider resistance in the backlight module is obtained；
By the measurement voltage compared with normal voltage, the absolute value of the difference of the measurement voltage Yu normal voltage is obtained；
If the absolute value of the difference is greater than predetermined voltage threshold, export control signal, control backlight module and drive module into
Row picture is adjusted.
2. the driving method of display device as described in claim 1, which is characterized in that the display device further includes that modulus turns
Parallel operation；
Display device be in current picture show state when, obtain divider resistance in the backlight module measurement voltage it
Afterwards, comprising:
The measurement voltage is subjected to analog-to-digital conversion by the analog-digital converter, obtains number corresponding with the measurement voltage
Signal.
3. the driving method of display device as described in claim 1, which is characterized in that by the measurement voltage and standard electric
Pressure ratio is compared with before the absolute value of the difference for obtaining the measurement voltage and normal voltage, comprising:
The corresponding relationship of state and the normal voltage is shown according to picture, is obtained and is shown that state is corresponding with the current picture
Normal voltage.
4. the driving method of display device as described in claim 1, which is characterized in that the backlight module further includes that brightness is posted
Storage；
If the absolute value of the difference is greater than predetermined voltage threshold, export control signal, control backlight module and drive module into
Row picture is adjusted, comprising:
Luminance delta and amount of chroma change are calculated according to the measurement voltage and the normal voltage；
First control signal is exported to the brightness register according to the luminance delta, carries out picture brightness adjusting；
Second control signal is exported to drive module according to the amount of chroma change, carries out picture chromenence adjusting.
5. such as the driving method of the described in any item display devices of Claims 1-4, which is characterized in that further include:
It obtains the picture after adjusting and shows information, judge to show whether information meets normal display standard；
If the display information does not meet normal display standard, continue the actual measurement electricity for obtaining divider resistance in the backlight module
Pressure；
If the display information meets normal display standard, terminate to adjust.
6. a kind of drive system of display device, which is characterized in that the display device includes backlight module, the backlight module
It is provided with divider resistance；The drive system includes:
First module is set as obtaining when display device is in current picture and shows state and dividing electricity in the backlight module
The measurement voltage of resistance；
Second module is set as the measurement voltage compared with normal voltage, obtain the measurement voltage and normal voltage it
Absolute value of the difference；
Third module exports control signal, controls backlight mould if being set as the absolute value of the difference greater than predetermined voltage threshold
Group and drive module carry out picture adjusting.
7. the drive system of display device as claimed in claim 6, which is characterized in that further include:
Analog-digital converter, be set as by the analog-digital converter by the measurement voltage carry out analog-to-digital conversion, obtain with it is described
The corresponding digital signal of measurement voltage.
8. the drive system of display device as claimed in claim 6, which is characterized in that further include:
4th module is set as showing the corresponding relationship of state and the normal voltage according to picture, obtain and the current picture
Face shows the corresponding normal voltage of state.
9. the drive system of display device as claimed in claim 6, which is characterized in that further include:
5th module is set as obtaining the picture after adjusting and shows information, judges to show whether information meets normal display standard；
If the display information meets normal display standard, terminate to adjust；
First module continues to obtain the backlight if being also configured to the display information does not meet normal display standard
The measurement voltage of divider resistance in mould group.
10. a kind of display device, which is characterized in that further include storage including the described in any item drive systems of claim 6-9
Device and storage in memory and the computer program that can be run in control module, the control module execution calculating
The step of realizing driving method as described in any one in claim 1-5 when machine program.
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| CN201811427481.9A CN109285508A (en) | 2018-11-27 | 2018-11-27 | A kind of driving method of display device, drive system and display device |
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| CN201811427481.9A CN109285508A (en) | 2018-11-27 | 2018-11-27 | A kind of driving method of display device, drive system and display device |
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| CN110706666A (en) * | 2019-09-16 | 2020-01-17 | 深圳市华星光电半导体显示技术有限公司 | Picture transition method, device, controller and storage medium |
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| WO2023125461A1 (en) * | 2021-12-31 | 2023-07-06 | 北京显芯科技有限公司 | Control method, dimming controller, and display device |
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