CN105825819B - The brightness adjusting method of display module and display module - Google Patents
The brightness adjusting method of display module and display module Download PDFInfo
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- CN105825819B CN105825819B CN201610196643.7A CN201610196643A CN105825819B CN 105825819 B CN105825819 B CN 105825819B CN 201610196643 A CN201610196643 A CN 201610196643A CN 105825819 B CN105825819 B CN 105825819B
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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 present invention provides the brightness adjusting method of a kind of display module and display module.Display module includes panel assembly, driving equipment and brightness regulation equipment.Driving equipment includes：Drive integrated circult, drives display module to be shown with various brightness；Communication module, is communicated with optical detecting instrument, and after the maximum brightness value that optical detecting instrument detects display module, the communication module obtains detected maximum brightness value, and the maximum brightness value is sent into drive integrated circult.Wherein, drive integrated circult by the code storage of the maximum brightness value or brightness degree corresponding with the maximum brightness value or the maximum brightness value in the predetermined memory of display module driving equipment.The brightness regulation equipment is communicated with the driving equipment, and brightness to display module is adjusted.Apparatus and method of the invention are highlighted the driving current of module and reduce power consumption by reducing, and can extend and use duration, and increase brightness uniformity.
Description
Technical field
The present invention relates to electronic device field, more particularly to a kind of effective overall power for reducing portable display device
Apparatus and method.
Background technology
In recent years, smart mobile phone is developed rapidly, but the function machine in power dissipation ratio one's early years is higher by many grades, causes mobile phone to use
Duration is shorter, it is necessary to frequent charge, and the problem is denounced by user always.And smart mobile phone when using the main cause of length be
Because its high-resolution screen is often lighted, it is necessary to expend substantial amounts of electric power.Similarly, other have the portable of display module
Terminal (for example, panel computer, game machine etc.) there is also identical problem.
Existing display module includes Liquid Crystal Module (LCM), Organic Light Emitting Diode (OLED) and other kinds of aobvious
Show module.By taking Liquid Crystal Module (LCM) as an example, Liquid Crystal Module (LCM) is main by liquid crystal display panel (and referred to as panel), backlight
Component, flexible printed circuit board (FPC) and integrated circuit (IC) composition.The display screen of present electronic product, its brightness is main
By light emitting module control, such as backlight module of LCD screen.The brightness of LCM application apparatus is mainly bright with panel light transmission rate, backlight
Degree strong correlation, brightness main with the light emitting diode (LED) as backlight, LED and light guide plate spacing are strong again for backlight illumination
Correlation, because the light transmittance of different panels, LED luminance, LED can have consistent sex differernce with light guide plate spacing, this directly leads
Causing the brightness under the driving of same electric current of different LCM modules can have certain space of fluctuating, such as LED is in 20mA electric currents
Under driving, the brightness of different LCM modules may but float between 350cd/m2-800cd/m2.By taking mobile phone liquid crystal screen curtain as an example,
The overall uniformity of the LED of its backlight module is bad, can cause the high-high brightness of some screens wider range (for example,
400nits to 600nits), cause a mobile phone for batch some brightness higher, some brightness are relatively low.
And for user is actually used, what beneficial value the too high brightness of LCM equipment does not bring in fact, can only increase
Plus the power consumption of portable terminal.But if uniformly reducing the brightness of LCM application apparatus, the relatively low portion of script brightness can be caused again
Dividing the brightness of LCM application apparatus becomes very low, allows the naked eyes of user to feel painstaking.
The content of the invention
The present invention is by providing a kind of backlight illumination that can adjust display module to reduce the side of the power consumption of display module
Method and equipment, (power consumption of existing display module is very high, length when using, different to have substantially solved above mentioned problem and/or shortcoming
At least one of the brightness uniformity of the display module of batch and model is low), and additional advantage may be provided.Additionally, not
It is required that exemplary embodiment must pull against all disadvantages mentioned above, exemplary embodiment can not simultaneously be solved in above-mentioned multiple problems
Whole.
A kind of embodiments in accordance with the present invention, there is provided display module, the display module includes panel assembly, the display
Module also includes driving equipment and brightness regulation equipment.The driving equipment includes：Drive integrated circult, for driving display mould
Group is shown with various brightness；Communication module, is communicated with optical detecting instrument, and display module is detected in optical detecting instrument
Maximum brightness value after, the communication module obtains detected maximum brightness value, and the maximum brightness value is sent
To drive integrated circult, wherein, drive integrated circult is by the maximum brightness value or brightness corresponding with the maximum brightness value etc.
The code storage of level or the maximum brightness value in the predetermined memory of display module driving equipment, wherein, the brightness is adjusted
Section equipment is communicated with the driving equipment, and brightness to display module is adjusted.
A kind of embodiments in accordance with the present invention, there is provided brightness adjusting method of display module, including：Display module is with various
Brightness shows；Optical detecting instrument is detected and obtains maximum brightness value；Display module driving equipment is led to optical detecting instrument
Letter, obtains and stores the maximum brightness value；Brightness regulation equipment pre-sets target maximum brightness value；Brightness regulation equipment with it is aobvious
Show the communication of module driving equipment to obtain maximum brightness value；Brightness of the brightness regulation equipment to display module is adjusted；Display
Module shows that the data value of the final brightness is multiplied by brightness coefficient of reduction equal to original luminance data value with final brightness.
Embodiments in accordance with the present invention, there is provided a kind of electronic equipment, the electronic equipment includes display mould as described above
Group.The electronic equipment includes mobile phone, navigator, panel computer, laptop computer, audio/video player or desktop computer.
Embodiments in accordance with the present invention, there is provided the brightness adjusting method of a kind of electronic equipment, the brightness adjusting method bag
Include the brightness adjusting method of display module as described above.
Embodiments in accordance with the present invention, there is provided one kind is carried out with LCM modules by tester and communicated, burn to LCM modules
Enter intrinsic brilliance value (or burned brightness stepping numbering, or burned brightness value coding), cell phone software is further according to burned reality
The LED current reduction of high brightness module so as to reduce LCM application apparatus (such as mobile phone) overall power, is reached extension by brightness value
LCM application apparatus (such as mobile phone) uses duration purpose.
Embodiments in accordance with the present invention, the driving current of module is highlighted by suitably reducing to reduce display module
Power consumption, under the premise of Consumer's Experience is not influenceed, reach extension display module use duration technique effect.In addition, also may be used
Increase the brightness uniformity of batch shipment machine.
Brief description of the drawings
By the description for carrying out below in conjunction with the accompanying drawings, above and other purpose of the invention and feature will become more clear
Chu, wherein：
Fig. 1 diagrammatically illustrates the block diagram of optical detecting instrument according to an embodiment of the invention and display module；
Fig. 2A and 2B diagrammatically illustrate drive integrated circult according to an embodiment of the invention and communication module respectively
Block diagram；
Fig. 3 diagrammatically illustrates brightness of the brightness regulation equipment to display module according to an embodiment of the invention and adjusts
The operation of section；
Fig. 4 diagrammatically illustrates display module driving equipment according to an embodiment of the invention and obtains and store high-high brightness
The process of value；
The display module driving equipment that Fig. 5 diagrammatically illustrates according to another embodiment of the present invention is obtained and stores maximum
The process of brightness value.
Specific embodiment
Hereinafter, embodiments of the invention are described in detail with reference to the attached drawings.The method of the present invention is adapted to any type of display
Equipment, it is convenient following for explanation, sometimes only using with LED as backlight LCM application apparatus (there is the electronic equipment of LCM)
As a example by illustrate.
Design of the invention is intended to one critical luminance value of selection and (is represented with Brightness_Target, alternatively referred to as mesh
Mark brightness value), maintain original LED current to set less than the module of Brightness_Target brightness, higher than Brightness_
The module of Target brightness is suitably reduced LED current by software, so as to reduce LCM application apparatus, (such as mobile phone, flat board are electric
Brain) overall power, reach extension LCM application apparatus (such as mobile phone) use duration purpose.
Fig. 1 diagrammatically illustrates the block diagram of optical detecting instrument according to embodiments of the present invention and display module.Such as Fig. 1 institutes
Show, display module 1 includes that (for the panel assembly of liquid crystal display module, it may include such as liquid crystal display to panel assembly 6
Layer and backlight assembly；For the panel assembly of LED display modules, it may include LED dot array module), the drive of display module
Dynamic equipment 2 (drive circuit) and brightness regulation equipment (brightness adjusting unit) 8.In order to realize inventive concept above-mentioned, need
Include the driving equipment 2：Drive integrated circult (driving IC) 4, for driving display module 1 to be shown with various brightness
(for example, drive integrated circult 4 can drive the panel assembly 6 of display module 1 to be shown with high-high brightness)；Communication module 5, with light
Detecting instrument 3 is learned to be communicated, after the maximum brightness value that optical detecting instrument 3 detects display module 1, the communication mould
Block 5 obtains detected maximum brightness value, and the maximum brightness value is sent into drive integrated circult 4.Wherein, collection is driven
The coding of the maximum brightness value or brightness degree corresponding with the maximum brightness value or the maximum brightness value is deposited into circuit 4
Storage is in the predetermined memory of display module driving equipment 2.Wherein, the brightness regulation equipment 8 is carried out with the driving equipment 2
Communication, and brightness to display module 1 is adjusted.
The drive integrated circult 4 includes multiple data registers.As an example, the predetermined memory can be to drive
The data register (tentation data register) being pre-selected in multiple data registers of dynamic integrated circuit 4, drives integrated electricity
Road 4 is by the maximum brightness value of display module or brightness degree corresponding with the maximum brightness value or the maximum brightness value
Coding be burnt in the tentation data register.
Embodiments in accordance with the present invention, the communication module 5 includes maximum brightness value acquisition module, the maximum brightness value
Acquisition module communicates with optical detecting instrument 3, obtains the maximum brightness value of the display module 1 measured by optical detecting instrument 3.Institute
Drive integrated circult 4 is stated including burning module, the display module 1 for measuring maximum brightness value in normal maximum range of luminance values
In the case of, the maximum brightness value is burnt to predetermined memory by the burning module.
Further, the drive integrated circult 4 can also include：Read module, reads the predetermined memory of display module 1
In brightness value；Burning confirms module, if the brightness value in the predetermined memory of read module reading is bright in normal maximum
In the range of angle value, then show the maximum brightness value of predetermined memory burning display module, the burning confirms that module refers to
Show drive integrated circult 4 (specifically its burning module) without carrying out burning operation again.If it is pre- that read module reads
The brightness value in memory is determined not in normal maximum range of luminance values, then drive integrated circult 4 drives display module 1 with maximum
Brightness shows, and allows maximum brightness value acquisition module to obtain the maximum brightness value.
It should be noted that read module and burning above confirms that module is preferred, it is not that driving is integrated
Necessary to circuit.
Further, embodiments in accordance with the present invention, the communication module 5 can also include handshake module, in high-high brightness
Before value acquisition module obtains maximum brightness value or before read module reads predetermined memory, handshake module is examined to optics
Survey the identity recognition number (ID) that instrument 3 sends display module 1.Optical detecting instrument 3 is recognized and judges received identification
Number, if the identity recognition number (ID) is belonging to display module, display module 1 carries out the behaviour that shakes hands with optical detecting instrument 3
Make；If the identity recognition number is not belonging to display module, handshake operation is not carried out.Equally, handshake module be it is preferred and
Nonessential.
Further, embodiments in accordance with the present invention, the drive integrated circult 4 can also include again reading off module,
Be burnt to the maximum brightness value after predetermined memory by burning module, again reads off during module again reads off predetermined memory
Brightness value, the maximum brightness value of burning before being equal to if the read out value, then it represents that burning is successfully completed, burning confirms that module refers to
Show drive integrated circult 4 without carrying out burning operation again.
Can be realized using hardware circuit and/or drive software it is above-mentioned structurally and operationally.Specifically, it is with software
Example, lights as white with maximum brightness value display module 1 (for example, LCM) using the drive software debugged in advance
Color picture, LCM modules 1 are measured at constant current (such as by optical detecting instrument 3 (such as BM-7 YCs meter etc.)
Brightness value 20mA), is then set up by the driving equipment 2 of LCM modules 1 and obtains LCM's with the data communication of optical detecting instrument 3
Brightness value, and the intrinsic brilliance value (be also likely to be brightness stepping numbering, or brightness value coding) is burnt to LCM drives IC4's
In register.Specifically, the brightness value is the actual high-high brightness of LCM modules 1 itself, and the design with display module 1 is relevant, right
For LCM modules, the actual high-high brightness is relevant with light guide plate spacing with the light transmittance of display panel, LED luminance, LED.
For example, from the point of view of being designed with current LCM, typically may be between 350-700cd/m2.
The above be using communication module 5 and drive integrated circult 4 as two independent component representations, but it is of the invention
Scope not limited to this, in fact, communication module 5 can be a component parts of drive integrated circult 4.No matter communication module 5
Whether be drive integrated circult 4 component parts, it is each fallen within the protection domain of present inventive concept.
Embodiments in accordance with the present invention, there is provided a kind of brightness adjusting method of display module, methods described includes：Display
Module driving equipment 2 drives display module 1 to show that optical detecting instrument 3 is detected and obtained with the various brightness including high-high brightness
The maximum brightness value of display module 1 is taken, then display module driving equipment 2 communicates with optical detecting instrument 3, obtain and store this
Maximum brightness value；Brightness regulation equipment (brightness adjusting unit) 8 pre-sets target maximum brightness value；Brightness regulation equipment 8 with
Display module driving equipment 2 communicates with obtaining maximum brightness value；Brightness of the brightness regulation equipment 8 to display module 1 is adjusted；
Display module 1 shows that the data value of the final brightness is multiplied by brightness and reduces system equal to original luminance data value with final brightness
Number.
Specifically, communicated with optical detecting instrument 3 to obtain in display module driving equipment 2 and store the high-high brightness
In the operation of value, the maximum brightness value of the display module 1 that optical detecting instrument 3 will be detected is sent to display module driving equipment
2 communication module 5, display module driving equipment 2 by the maximum brightness value or brightness degree corresponding with the maximum brightness value,
Or the code storage of the maximum brightness value is in the predetermined memory of display module driving equipment 2.
Fig. 3 diagrammatically illustrates brightness of the brightness regulation equipment 8 to display module according to an embodiment of the invention and carries out
The operation of regulation.
Next, reference picture 1 and Fig. 3 to be described the process that brightness regulation equipment 8 adjusts the brightness of display module 1.
As shown in figure 1, display module 1 includes driving equipment 2 and brightness adjusting unit 8, brightness adjusting unit 8 can be by hardware
Module or software module are constituted, for example, brightness adjusting unit 8 can be formed by the hardware module in processor, it is also possible to by
The software module of insertion in device is managed to realize.Brightness adjusting unit 8 pre-sets a target maximum brightness value (or " to face
Boundary's brightness value "), and from the maximum brightness value of the acquisition display module 1 of display module driving equipment 2, it is most light according to what is obtained
Brightness of the angle value with the target maximum brightness value for pre-setting to display module 1 carries out corresponding regulation.
Specifically, as shown in figure 3, according to the actually used situation of user, brightness adjusting unit 8 pre-sets a not shadow
Ring the target maximum brightness value (or being " critical luminance value ") of Consumer's Experience.Target maximum brightness value can be used
Brightness_Target is represented.Specific target maximum brightness value can be determined according to specific experience, do not made herein by force
System, for example, for LCM modules, target maximum brightness value preferably is set as into 450cd/m2.
Then, before screen is lighted, brightness adjusting unit 8 reads the actual most light of the storage of display module driving equipment 2
Angle value (can be represented) with Brightness_panel_real.Specifically, the step of above-mentioned " reading " is brightness adjusting unit
(or corresponding LCM drive softwares being loaded on the CPU on electronic equipment 100) passes through such as MIPI when electronic equipment is started shooting
Agreement read operation read the brightness value of burning, the brightness value refers to display module producer or portable electric appts
The actual maximum brightness value of the producer LCM that burning is entered in manufacture or assembling, i.e. producer are by the actual inspection of optical detecting instrument 3
The maximum brightness value of the LCM of survey.
With actual maximum brightness value be compared target maximum brightness value by brightness adjusting unit 8, according to comparison algorithm meter
Brightness coefficient of reduction is calculated, and brightness coefficient of reduction is preserved in systems.Wherein, the comparison algorithm will then be carried out in detail
Discuss.
Specifically, by taking LCM as an example, debugging port can be opened on LCM application apparatus (such as mobile phone), reads burning and enter
Actual maximum brightness value Brightness_panel_real and by itself and target maximum brightness value Brightness_Target
Brightness ratio is compared with display moulds of the actual maximum brightness value Brightness_panel_real less than Brightness_Target brightness
Group maintains original LED current to set, and actual maximum brightness value will by software higher than the module of Brightness_Target brightness
LED current is suitably reduced, so as to reduce LCM application apparatus power, reaches the purpose that extension LCM application apparatus uses duration.
Brightness adjusting unit 8 makes display module 1 be shown with final luminance data values, and the final luminance data values are equal to original
Beginning luminance data values are multiplied by brightness coefficient of reduction.Wherein, luminance data values are each pictures when display module shows each two field picture
The data value (including data value of each color component) of element.
The algorithm for calculating brightness coefficient of reduction is described more fully below.The comparison algorithm can have various, and the present invention will be detailed
The method for carefully describing several calculating brightness coefficient of reductions.
According to one embodiment of present invention, brightness adjusting unit 8 will be obtained maximum brightness value and target maximum brightness
Value is compared, and when maximum brightness value is less than or equal to target maximum brightness value, adjustment brightness coefficient of reduction makes it equal to 1；
Maximum brightness value be more than target maximum brightness value when, by brightness coefficient of reduction be adjusted to be equal to target maximum brightness value with it is most light
The business of angle value.Then, brightness adjusting unit 8 makes display module be shown with final luminance data values, the final luminance data values
Brightness coefficient of reduction is multiplied by equal to original luminance data value.Because brightness curve is substantially linear, it is possible to proportional contracting
Put.
Certainly, in order to play fool proof effect, before the step of brightness regulation equipment 8 pre-sets target maximum brightness value
Or afterwards, brightness regulation equipment 8 can also pre-set theoretical maximum brightness value Brightness_Max, theoretical maximum brightness value is
The limit high-high brightness that display module can reach in theory, when maximum brightness value is more than theoretical maximum brightness value, makes brightness
Coefficient of reduction is equal to 1.Now, the theoretical maximum brightness of display module is alreadyd exceed due to the value in the predetermined register of reading
Value, this does not store maximum brightness value successfully before showing brightness register or the register of display module has been damaged now
It is bad, therefore the value of the register of system reading greatly exceed the existing display module maximum to be reached, if pressed by force
According to the register storage value calibrated, it will cause display module luminance data values be calibrated very little (is referred to down
The calculating process in face), therefore in order to play " fool proof " effect, when more than Brightness_Max, do not carry out calibration operation.
In the case where theoretical maximum brightness value Brightness_Max is set, the complete calculating side of brightness coefficient of reduction
Method will be adjusted to：Brightness regulation equipment carries out the maximum brightness value of acquisition with target maximum brightness value, theoretical maximum brightness value
Compare, when maximum brightness value is less than or equal to target maximum brightness value, make brightness coefficient of reduction be equal to 1；It is big in maximum brightness value
During in target maximum brightness value and less than or equal to theoretical maximum brightness value, make brightness coefficient of reduction be equal to target maximum brightness value with
The business of maximum brightness value；When maximum brightness value is more than theoretical maximum brightness value, brightness coefficient of reduction is made to be equal to 1.
Represented with formula, be then represented by：
If Brightness_panel_real is less than or equal to Brightness_Target, (backlight) brightness is made to contract
Small coefficient=1；Luminance data values are not reduced in representative.
If Brightness_panel_real is less than or equal to Brightness_ more than Brightness_Target
Max, then make：
Brightness coefficient of reduction=Brightness_Target/Brightness_panel_real；
If Brightness_panel_real is more than Brightness_Max, backlight illumination coefficient of reduction=1 is made；
Luminance data values are not reduced in representative.
For example, presupposition theory high-high brightness Brightness_Max=800nits, goal-selling maximum brightness value
Brightness_Target=450nits, the screen high-high brightness Brightness_panel_real=700 of actual test.
It follows that maximum brightness value (Brightness_panel_real) 700nits of the screen of actual test exists
Between Brightness_Max and Brightness_Target, now (backlight) brightness coefficient of reduction=450/700=0.64.
Now, if the original luminance data value of certain pixel is 255 before backlight illumination calibration, corresponding backlight illumination is
700nits；The then final luminance data values=255*0.64=163 after backlight illumination calibration, corresponding backlight illumination is
450nits or so.If the original luminance data value of certain pixel is 120 before backlight illumination calibration, corresponding backlight illumination is
336nits；Then final luminance data values=120*0.64=76.8 ≈ 77 after backlight illumination calibration, corresponding backlight illumination is
215nits or so.The brightness value for calculating each color component that can be directed to each pixel above is calculated, and is intended merely to
For the sake of simple, there is no unfolding calculation.
By after backlight illumination calibration, the high-high brightness of most of module is all in 450nits or so；Have the following advantages：Increase
The brightness uniformity of module is added；Part module by limiting high-high brightness, on the premise of not experience lf being influenced, more power saving.
In the case where other are constant, it is exactly to be realized by adjusting the driving current of backlight (for example, LED) to reduce brightness
, reduce the purpose that LED current just can reach reduction mobile telephone power consumption.Certainly, the invention is not restricted to this, it is also possible to by changing it
His factor reduces brightness.
Wherein, brightness value (be also likely to be brightness stepping numbering, or brightness value coding) can be written into the driving IC of LCM
In memory, it is also possible to be written into other memories on LCM application apparatus.
A kind of method for calculating brightness coefficient of reduction foregoing illustrate, the invention is not restricted to this.
According to another embodiment of the present invention, the step of brightness regulation equipment 8 pre-sets target maximum brightness value it
It is preceding or afterwards, also including setting brightness coefficient of reduction the step of：Brightness adjusting unit 8 divides multiple according to various maximum brightness values
Brightness degree simultaneously sets corresponding brightness coefficient of reduction for each brightness degree, and brightness regulation equipment judges that display module institute is right
The brightness degree answered, and the brightness of display module is adjusted according to corresponding brightness coefficient of reduction.Specifically, different display moulds
Group has different maximum brightness values, and a display module corresponds only to a maximum brightness value, according to each maximum brightness value
The size division that carries out from low to high, each maximum brightness value grade has corresponding brightness coefficient of reduction.Brightness regulation sets
Standby 8 judge the brightness degree (maximum brightness value grade) corresponding to display module, and the brightness degree according to belonging to display module
Corresponding bright coefficient of reduction regulation display module brightness (will the luminance data values of display module be multiplied by its affiliated grade
Brightness coefficient of reduction).
It should be noted that brightness degree mentioned here is maximum brightness value grade, it does not imply that a display mould
The different brightness of group, a display module corresponds only to a brightness degree (maximum brightness value grade), with different maximums
Two display modules of brightness value can have different brightness degrees.
The step of setting brightness coefficient of reduction includes：Be less than for maximum brightness value by brightness regulation equipment (or corresponding software)
The display module of target maximum brightness value is classified as the first brightness degree, and the brightness coefficient of reduction of the first brightness degree is set into 1；
Maximum brightness value is classified as maximum brightness grade higher than the display module of theoretical maximum brightness value, by the brightness of maximum brightness grade
Coefficient of reduction is set to 1；Display module by maximum brightness value between target maximum brightness value and theoretical maximum brightness value
It is divided into several brightness degrees, corresponding brightness coefficient of reduction is determined according to the respective brightness of each brightness degree.
Wherein it is possible to make display module of the maximum brightness value between target maximum brightness value and theoretical maximum brightness value
The brightness coefficient of reduction of each brightness degree be equal to the business of object brightness maximum and the Strehl ratio of each brightness degree.
For example, the display module that maximum brightness value falls into 300cd/m2-450cd/m2 scopes is classified as the first brightness degree,
The backlight illumination coefficient of reduction of the first brightness degree is preset as 1, then the final brightness data of the display module of the brightness degree
Value=original luminance data value；The display module that maximum brightness value falls into 450cd/m2-500cd/m2 is classified as second brightness etc.
Level, 0.947 (about 450/475) is preset as by the backlight illumination coefficient of reduction of the second brightness degree, then the brightness degree is aobvious
Show final luminance data values=original luminance data value × 0.947 of module；Maximum brightness value is fallen into 500cd/m2-550cd/
The display module of m2 is classified as the 3rd brightness degree, and the backlight illumination coefficient of reduction of the 3rd brightness degree is preset as into 0.857 (about
450/525), then final luminance data values=original luminance data value × 0.857 of the display module of the brightness degree；Class successively
Push away；Display module by maximum brightness value more than 800cd/m2 is classified as maximum brightness grade (for the 9th is bright in the numerical example
Degree grade), it is now, different with above, it is in order to play foolproof function, the backlight illumination coefficient of reduction of the brightness degree is pre-
It is set to l.The division to brightness degree is only example above, the invention is not restricted to this, can divide more or less bright
Degree grade, and the starting and terminal point of each brightness degree may also differ from above example.
The display module driving equipment 2 that Fig. 4 diagrammatically illustrates exemplary embodiment of the invention is obtained and stored
The process of maximum brightness value.
Reference picture 4, in operation S110, drives display module with the white displays with maximum brightness value, optical detector
Device (probe) is detected and obtains the maximum brightness value of display module, and afterwards, be sent to for the maximum brightness value by optical detecting instrument 3
The maximum brightness value is sent to drive integrated circult 4 by communication module 5, communication module 5, and drive integrated circult 4 is by the maximum
The code storage of brightness value or brightness degree corresponding with the maximum brightness value or the maximum brightness value is driven in display module
In the predetermined memory of dynamic equipment 2.Therefore, display module 1 obtains the maximum of the display module 1 measured by optical detecting instrument 3
Brightness value.
The step of reference picture 4, storage maximum brightness value of display module driving equipment 2, can also include：If measured
The maximum brightness value of display module, then in operation S120, the maximum brightness value is burnt to pre- in normal maximum range of luminance values
Memory is determined, for example, being burnt to predetermined register.Wherein, what normal maximum range of luminance values was up (is not out of order
) brightness range that can reach of the high-high brightness of display module, for example, for LCM display modules, the normal maximum is bright
Angle value may range from 300cd/m2-800cd/m2.
If the maximum brightness value of the display module for measuring shows such as MTP_ not in normal maximum range of luminance values
Light goes beyond the scope, as shown in Figure 4.Now represent that test is abnormal, it is meant that brightness register does not store high-high brightness successfully
Value.Such case be probably due to following situations in one cause, for example, brightness register damage, optical detection probe
Damage, or communication between optical detection probe and display module goes wrong, or display module itself goes wrong, etc.
Deng.
The display module driving equipment that Fig. 5 diagrammatically illustrates in accordance with an alternative illustrative embodiment of the present invention is obtained and deposited
Store up the process of maximum brightness value.
Reference picture 5, before obtaining maximum brightness value or before predetermined memory is read, measured device (shows mould
Group) identity recognition number (ID) of oneself is sent to optical detecting instrument, optical detecting instrument 3 reads received ID and carries out
Judge, allow optical detecting instrument 3 judge received ID whether be display module ID, to carry out handshake operation.If optics
Detecting instrument judges that the ID of measured device is not inconsistent with the ID of display module, then do not carry out handshake operation, i.e. optical detecting instrument
The response of identification mistake can be responded or made, represents that measured device is not that display module or display module cannot be with optics
Detecting instrument 3 carries out proper communication, can show such as ID_NG！If it is judged that the ID of measured device is ID (this of display module
When can be as shown in figure 3, display such as ID OK), then optical detecting instrument 3 is believed to the response that display module 1 sends correct identification
Number, representing the measured device is display module and can carry out proper communication with optical detecting instrument 3, is shaken hands successfully.
After shaking hands successfully, display module driving equipment can read predetermined memory according to an embodiment of the invention
Value in (for example, the register of selected presumptive address, namely be selected as the register of brightness register).
What if the value (readout) in the predetermined memory for reading can reach in the high-high brightness of normal display module
In brightness range, then show the maximum brightness value of predetermined memory burning display module, without carrying out burning operation again.
If the read out value not in the (brightness that the high-high brightness of normal display module is likely to be breached of normal maximum range of luminance values
Scope) in, then display module 1 is allowed with the white displays with maximum brightness value, allow optical detecting instrument (probe) 3 to measure display
The maximum brightness value of module, display module 1 obtains maximum brightness value from optical detecting instrument 3 again.
If next, the maximum brightness value for measuring is not in normal maximum range of luminance values, representing that test is abnormal, can be such as
Display such as MTP_Light shown in Fig. 5 goes beyond the scope, it is meant that brightness register does not store maximum brightness value successfully.It is this
It may be the case that one in due to following situations causes, for example, brightness register is damaged, optical detection tip damage, or
Communication between person's optical detection probe and display module goes wrong, or display module itself goes wrong, etc..
If the maximum brightness value for measuring is in normal maximum range of luminance values, actually measured maximum brightness value is burnt
Record the predetermined memory (for example, being selected as the register of brightness register) of display module.
Selectively, in order to ensure the security of burning operation, high-high brightness is stored in the display module driving equipment 2
The step of can also confirming including burning after the step of value：It is burnt to after predetermined memory by maximum brightness value, again
The value in predetermined memory is read, the maximum brightness value of burning before being equal to if the read out value, then it represents that burning is successfully completed.This
When, the maximum brightness value of the display module of actual measurement is stored in the brightness register of display module.
Embodiments in accordance with the present invention, there is provided a kind of electronic equipment, the electronic equipment includes display mould as described above
Group.The electronic equipment can be mobile phone, navigator, panel computer, laptop computer, audio/video player or desktop computer,
Etc..
Embodiments in accordance with the present invention, there is provided the brightness adjusting method of a kind of electronic equipment, the electronic equipment includes aobvious
Show module, the brightness adjusting method includes the brightness adjusting method of display module as described above.
Embodiments in accordance with the present invention, the driving current of module is highlighted by suitably reducing to reduce display module
Power consumption, under the premise of Consumer's Experience is not influenceed, reach extension display module use duration technique effect.In addition, also may be used
Increase the brightness uniformity of batch shipment machine.
Unless there is opposite description in addition, otherwise the description to feature or aspect in each embodiment is considered as applicable
Similar feature or aspect in other embodiment.
For the purpose promoted to the understanding of principle of the invention, the preferred embodiment shown in accompanying drawing is carried out
Illustrate, and be used for specific language to describe these embodiments.However, the specific language is not intended to limit this hair
Bright scope, the present invention should be construed as including all implementations for generally occurring for those of ordinary skills
Example.Additionally, be " essential " or " key " except not element is specifically described, otherwise without element or module to this hair
Bright implementation is essential.
Although exemplary embodiment of the invention is described in detail above, have in the technical field of the invention
Common knowledge person without departing from the spirit and scope of the present invention, can make various modifications, retouching to embodiments of the invention
And modification.It is understood that in the opinion of those skilled in the art, these modifications, retouching and modification will fall into claim
In the spirit and scope of the exemplary embodiment of the invention for being limited.
Finally, unless be pointed out or otherwise clearly contradicted in addition, otherwise described herein methodical step
Suddenly can perform in any suitable order.
The invention is not restricted to above-described embodiment, without departing from the present invention, can carry out various modifications and
Modification.
Claims (20)
1. a kind of display module, comprising panel assembly, it is characterised in that the display module also includes that driving equipment and brightness are adjusted
Section equipment, the driving equipment includes：
Drive integrated circult, for driving display module to be shown with various brightness；
Communication module, is communicated with optical detecting instrument, and the maximum brightness value of display module is detected in optical detecting instrument
Afterwards, the communication module obtains detected maximum brightness value, and the maximum brightness value is sent into the integrated electricity of driving
Road,
Wherein, drive integrated circult is by the maximum brightness value or brightness degree corresponding with the maximum brightness value or the maximum
The code storage of brightness value in the predetermined memory of display module driving equipment,
Wherein, the brightness regulation equipment is communicated with the driving equipment, and brightness to display module is adjusted.
2. display module according to claim 1, it is characterised in that
The drive integrated circult includes multiple data registers, and the data register includes tentation data register, described
Predetermined memory is the tentation data register；
Drive integrated circult is by the maximum brightness value of display module or brightness degree corresponding with the maximum brightness value or is somebody's turn to do
The coding of maximum brightness value is burnt in the tentation data register.
3. display module according to claim 1, it is characterised in that
The communication module includes maximum brightness value acquisition module, and the maximum brightness value acquisition module leads to optical detecting instrument
Letter, and obtain the maximum brightness value of optical detecting instrument transmission；
The drive integrated circult include burning module, the maximum brightness value normal maximum range of luminance values situation
Under, the maximum brightness value is burnt to predetermined memory by the burning module.
4. display module according to claim 3, it is characterised in that the drive integrated circult also includes：
Read module, for reading the brightness value in the predetermined memory；
Burning confirms module, if the brightness value that read module reads is in normal maximum range of luminance values, the burning
Confirm that module indicates drive integrated circult without carrying out burning operation again；
If the brightness value that read module reads is not in normal maximum range of luminance values, drive integrated circult drives display module
Shown with high-high brightness, maximum brightness value acquisition module obtains the maximum brightness value.
5. display module according to claim 3, it is characterised in that the communication module also includes handshake module, most
Before big brightness value acquisition module obtains maximum brightness value, handshake module is known to the identity that optical detecting instrument sends display module
Alias,
Optical detecting instrument is recognized and judges received identity recognition number, if the identity recognition number is belonging to display module
, then display module carries out handshake operation with optical detecting instrument；If the identity recognition number is not belonging to display module,
Do not carry out handshake operation.
6. display module according to claim 4, it is characterised in that the communication module also includes handshake module, is reading
Before modulus block reads predetermined memory, handshake module sends the identity recognition number of display module to optical detecting instrument,
Optical detecting instrument is recognized and judges received identity recognition number, if the identity recognition number is belonging to display module
, then display module carries out handshake operation with optical detecting instrument；If the identity recognition number is not belonging to display module,
Do not carry out handshake operation.
7. display module according to claim 4, it is characterised in that the drive integrated circult also includes again reading off mould
Block,
The maximum brightness value is burnt to after predetermined memory in burning module, is again read off module and is again read off predetermined storage
Brightness value in device；The maximum brightness value of burning before being equal to if the read out value, then the confirmation of burning module instruction drives integrated
Circuit without carrying out burning operation again.
8. a kind of brightness adjusting method of display module, including：
Display module is shown with various brightness；
Optical detecting instrument is detected and obtains maximum brightness value；
Display module driving equipment communicates with optical detecting instrument, obtains and store the maximum brightness value；
Brightness regulation equipment pre-sets target maximum brightness value；
Brightness regulation equipment communicates with obtaining maximum brightness value with display module driving equipment；
Brightness of the brightness regulation equipment to display module is adjusted；
Display module shows that the data value of the final brightness is multiplied by brightness and reduces equal to original luminance data value with final brightness
Coefficient.
9. brightness adjusting method according to claim 8, it is characterised in that brightness of the brightness regulation equipment to display module
The step of being adjusted includes：
With target maximum brightness value be compared the maximum brightness value of acquisition by brightness regulation equipment, be less than in maximum brightness value etc.
When target maximum brightness value, adjustment brightness coefficient of reduction is equal to 1；
When maximum brightness value is more than target maximum brightness value, adjustment brightness coefficient of reduction is equal to target maximum brightness value with maximum
The business of brightness value.
10. brightness adjusting method according to claim 8, it is characterised in that pre-set target in brightness regulation equipment
Before or after the step of maximum brightness value, also including pre-setting theoretical maximum brightness value the step of；Wherein, brightness regulation sets
The step of standby brightness to display module is adjusted includes：
With target maximum brightness value, theoretical maximum brightness value be compared the maximum brightness value of acquisition by brightness regulation equipment,
When maximum brightness value is more than theoretical maximum brightness value, adjustment brightness coefficient of reduction is equal to 1；
In maximum brightness value more than target maximum brightness value and during less than or equal to theoretical maximum brightness value, brightness coefficient of reduction is adjusted
Equal to target maximum brightness value and the business of maximum brightness value.
11. brightness adjusting methods according to claim 8, it is characterised in that pre-set target in brightness regulation equipment
Before or after the step of maximum brightness value, also including set brightness coefficient of reduction the step of：
Brightness regulation equipment divides multiple brightness degrees and sets corresponding for each brightness degree according to various maximum brightness values
Brightness coefficient of reduction, brightness regulation equipment judges the brightness degree corresponding to display module, and is reduced according to corresponding brightness
The brightness of coefficient adjustment display module.
12. brightness adjusting methods according to claim 11, it is characterised in that pre-set target in brightness regulation equipment
Before or after the step of maximum brightness value, also including pre-setting theoretical maximum brightness value the step of；The setting brightness contracting
The step of small coefficient, includes：
Maximum brightness value is classified as the first brightness degree by brightness regulation equipment less than the display module of target maximum brightness value, by the
The brightness coefficient of reduction of one brightness degree is set to 1；
Maximum brightness value is classified as maximum brightness grade by brightness regulation equipment higher than the display module of theoretical maximum brightness value, will most
The brightness coefficient of reduction of high brightness level is set to 1；
Display module of the brightness regulation equipment by maximum brightness value between target maximum brightness value and theoretical maximum brightness value
It is divided into several brightness degrees, corresponding brightness coefficient of reduction is determined according to the respective brightness of each brightness degree.
13. brightness adjusting methods according to claim 12, wherein,
It is in the brightness regulation equipment that maximum brightness value is aobvious between target maximum brightness value and theoretical maximum brightness value
Show that module is divided into several brightness degrees, and corresponding brightness coefficient of reduction is determined according to the respective brightness of each brightness degree
In step, the brightness coefficient of reduction is equal to the business of object brightness maximum and the Strehl ratio of each brightness degree.
14. brightness adjusting methods according to claim 8, it is characterised in that display module driving equipment stores the maximum
The step of brightness value, includes：
Read module reads the value in the predetermined memory of display module；
If the value in the predetermined memory for reading is in normal maximum range of luminance values, burning confirms that module indicates to drive
Integrated circuit need not again carry out burning operation,
If the value in the predetermined memory for reading is not in normal maximum range of luminance values, drive integrated circult drives display
Module shows that maximum brightness value acquisition module obtains maximum brightness value with high-high brightness.
15. brightness adjusting method according to claim 8 or 14, it is characterised in that obtain maximum brightness value before or
Person also included before the step of reading predetermined memory：
Display module sends the identity recognition number of display module to optical detecting instrument；
Optical detecting instrument is recognized and judges received identity recognition number, if the identity recognition number is belonging to display module
, then carry out handshake operation；If the identity recognition number is not belonging to display module, handshake operation is not carried out.
16. brightness adjusting methods according to claim 8, it is characterised in that display module driving equipment and optical detection
Instrument communication, obtains and includes the step of storing maximum brightness value：
After optical detecting instrument is detected and obtains the maximum brightness value of display module, the maximum brightness value is sent to communication mould
Block；The maximum brightness value is sent to drive integrated circult by communication module, drive integrated circult by the maximum brightness value or with
The code storage of the corresponding brightness degree of the maximum brightness value or the maximum brightness value is in the predetermined of display module driving equipment
In memory.
17. brightness adjusting methods according to claim 8, it is characterised in that in display module driving equipment storage
After the step of maximum brightness value, the step of also confirmation including burning：
The value during module again reads off predetermined memory is again read off, the maximum brightness value of burning before being equal to if the read out value,
Then drive integrated circult without carrying out burning operation again.
18. a kind of electronic equipment, it is characterised in that the electronic equipment includes the display as described in any one of claim 1~7
Module.
19. electronic equipments as claimed in claim 18, it is characterised in that the electronic equipment includes mobile phone, navigator, flat board
Computer, laptop computer, audio/video player or desktop computer.
The brightness adjusting method of 20. a kind of electronic equipment, it is characterised in that the brightness adjusting method include claim 8~
The brightness adjusting method of the display module described in 17 any one.
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| CN108630168A (en) * | 2017-03-24 | 2018-10-09 | 上海传英信息技术有限公司 | The method of adjustment of screen maximum brightness and the adjustment system of screen maximum brightness |
| CN113781136A (en) * | 2020-09-03 | 2021-12-10 | 北京沃东天骏信息技术有限公司 | Interface display method and device |
| CN113268213B (en) * | 2021-06-07 | 2022-10-21 | 厦门强力巨彩光电科技有限公司 | Debugging system and debugging method for LED display screen |
| WO2024078149A1 (en) * | 2022-10-12 | 2024-04-18 | 荣耀终端有限公司 | Brightness adjustment method for display screen, and electronic device |
| CN117524094B (en) * | 2024-01-05 | 2024-03-29 | 深圳市伽彩光电有限公司 | LED screen display correction method and system |
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