CN106531066A - Gamma correction method and apparatus for display module group - Google Patents
Gamma correction method and apparatus for display module group Download PDFInfo
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- CN106531066A CN106531066A CN201611067060.0A CN201611067060A CN106531066A CN 106531066 A CN106531066 A CN 106531066A CN 201611067060 A CN201611067060 A CN 201611067060A CN 106531066 A CN106531066 A CN 106531066A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
Abstract
The invention discloses a gamma correction method and apparatus for a display module group. The method comprises: a time parameter value registered by a time register is obtained; the obtained time parameter value is assigned to a counter and the counter is started to start counting; if the counter completes timing, a compensation frequency parameter value registered by a compensation frequency register is corrected; gamma register value adjustment is carried out on one group of pre-stored compensation values corresponding to all gray scales and gamma correction is carried out on a display module group. According to the gamma correction method and apparatus disclosed by the invention, gamma register value adjustment can be carried out on one group of pre-stored compensation values corresponding to all gray scales and thus gamma correction is carried out on the display module group. Therefore, the device luminance can be compensated automatically; the color cast can be eliminated; and the influence on the display effect by device aging can be reduced.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of gamma correction method and device for display module.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display device is a kind of emerging
Panel display apparatus, compare liquid crystal display (Liquid Crystal Display, LCD), OLED can self-luminous without
Backlight unit, therefore, think that OLED display is lower with respect to power consumption for LCD in general sense.
Pixel cell in OLED display includes the multiple pixel cells being arranged in matrix.Pixel cell according to
Type of drive is divided into passive matrix (Passive Matrix, PM) type of drive and active matrix (Active Matrix, AM) drives
Two kinds of flowing mode.As AMOLED has significantly at aspects such as visible angle, the reproducibility of color, power consumption and response times
Advantage, therefore be widely used.
During practical application, with the prolongation of the time of display, the luminescent material of OLED display device can be gradually old
Change, so as to cause the reduction of luminous efficiency so that display effect is subject to strong influence.For the solution master of the problems referred to above
If by regulation gamma electric voltage so that display effect recovers normal, but, only one group is included in existing OLED display device
The data of gamma electric voltage, therefore factory must be returned after OLED display device is aging can just carry out the regulation of gamma electric voltage.Here
On the basis of, the regulation of gamma electric voltage needs the collection of brightness of image is carried out by brightness collecting device, is converted into after computing
GTG (i.e. gamma electric voltage value), and again by the data be downloaded to sequence control register (Timer Control Register,
TCON) integrated circuit, adjusts process relatively cumbersome.
It follows that factory must be returned when adjusting the gamma electric voltage of OLED display device by said method carries out the tune of complexity
Section, this for the use and after-sales service of user, not only cumbersome, and with high costs.
The content of the invention
Present invention is primarily targeted at proposing a kind of gamma correction method and device for display module, it is intended to solve
The problem brought during the gamma electric voltage that OLED display device is adjusted in prior art.
For achieving the above object, the present invention provides a kind of gamma correction method for display module, and methods described includes：
Obtain the time parameter values of time register deposit；
The time parameter values of acquisition are assigned to enumerator, and start the enumerator start timing；
If the enumerator completes timing, the compensation count parameter value of correction-compensation number of times depositor deposit；
By prestore one group of each GTG corresponding offset is adjusted gamma register value, the display module is entered
Row gamma correction.
Preferably, it is described by prestore one group of each GTG corresponding offset is adjusted gamma register value, to institute
Stating display module and carrying out gamma correction includes：
According to revised compensation count parameter value, search and institute in the corresponding offset of multigroup each GTG for prestoring
State the corresponding offset of corresponding one group of each GTG of revised compensation count parameter value；
The corresponding offset of one group of each GTG according to finding adjusts gamma register value, and the display module is entered
Row gamma correction.
Preferably, the time parameter values for obtaining time register deposit include：
Obtain the compensation count parameter value of compensation number of times depositor deposit；According to compensation count parameter value, obtain and compensation
The time parameter values of the corresponding time register deposit of count parameter value.
Preferably, the compensation count parameter value of the correction-compensation number of times depositor deposit includes：
The compensation count parameter value deposited using progressively incremental manner correction-compensation number of times depositor.
Preferably, the time parameter values of the time register deposit are determined according to the brightness of display module and time relationship
With the compensation count parameter value of compensation number of times depositor deposit；Prestore according to the brightness of display module is determined with voltage relationship
The corresponding offset of each GTG.
Additionally, for achieving the above object, the present invention also provides a kind of gamma correcting device for display module, the dress
Put including：Acquisition module, starting module, correcting module and gamma correction module；
The acquisition module, for obtaining the time parameter values of time register deposit；
The starting module, for the time parameter values that the acquisition module is obtained are assigned to enumerator, and starts institute
State enumerator and start timing；
The correcting module, if completing timing, the compensation of correction-compensation number of times depositor deposit for the enumerator
Count parameter value；
The gamma correction module, for by prestore one group of each GTG corresponding offset is adjusted gamma deposit
Device value, carries out gamma correction to the display module.
Preferably, the gamma correction module includes searching unit and correction unit；
The searching unit, it is for according to the revised compensation count parameter value of the correcting module, multigroup what is prestored
Search in the corresponding offset of each GTG corresponding with described revised compensation corresponding one group of each GTG of count parameter value
Offset；
The correction unit, the corresponding offset adjustment of one group of each GTG for being found according to the searching unit
Gamma register value, carries out gamma correction to the display module.
Preferably, the acquisition module, is additionally operable to obtain the compensation count parameter value of compensation number of times depositor deposit；According to
Compensation count parameter value, obtains the time parameter values of the time register deposit corresponding with compensation count parameter value.
Preferably, the correcting module, if completing timing for the enumerator, using progressively incremental manner correction-compensation
The compensation count parameter value of number of times depositor deposit.
Preferably, described device also includes determining module；
The determining module, for determining the time register deposit according to the brightness of display module and time relationship
Time parameter values and the compensation count parameter value of compensation number of times depositor deposit；Close with voltage for the brightness according to display module
The corresponding offset of each GTG prestored described in system's determination.
Gamma correction method and device for display module provided in an embodiment of the present invention, can by prestore one group each
The corresponding offset of GTG adjusts gamma register value, carries out gamma correction to display module；Realize automatic compensator part bright
Degree, eliminates colour cast, reduces impact of the device aging to display effect.
Description of the drawings
The gamma correction method schematic flow sheet for display module that Fig. 1 is provided for first embodiment of the invention；
The gamma correcting device structural representation for display module that Fig. 3 is provided for second embodiment of the invention；
The gamma correction method schematic flow sheet for display module that Fig. 2 is provided for third embodiment of the invention；
The gamma correcting device structural representation for display module that Fig. 4 is provided for fourth embodiment of the invention；
Brightness and time relationship structural representation of the Fig. 5 for the display module of the embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
Each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, using for representing
, only for being conducive to the explanation of the present invention, itself is not special for the suffix of such as " module ", " part " or " unit " of element
Fixed meaning.
As shown in figure 1, a kind of gamma correction method for display module that first embodiment of the invention is proposed, the method
Including：
101st, the time parameter values of time register deposit are obtained.
In the present embodiment, the compensation number of times of the time parameter values of time register deposit and the depositor deposit of compensation number of times
Parameter value can be configured according to the brightness of display module and time relationship.
Refer to shown in Fig. 5, in figure, show the device (i.e. display module) of relatively low luminous efficiency and higher photoluminescence efficiency
Attenuation curve, the device of relatively low luminous efficiency, its rate of decay are very fast.In figure, further it is shown that a relatively low luminous efficiency device
The luminance compensation curve of part.After relation of the ageing time with device brightness is known, can arrange related according to the compensating curve
Parameter is compensated.
It should be noted that the compensating curve in figure is a kind of exemplary compensating curve, it is not to be only defined in this
Plant compensating curve.
102nd, the time parameter values of acquisition are assigned to enumerator, and start enumerator start timing.
If the 103, enumerator completes timing, the compensation count parameter value of correction-compensation number of times depositor deposit.
In the present embodiment, the compensation count parameter of progressively incremental manner correction-compensation number of times depositor deposit can be adopted
Value.It is 0 that the compensation count parameter value of compensation number of times depositor deposit is predeterminable, and it is 1 that incremental steps are predeterminable, needs explanation
It is that the default of parameter value can be adjusted by user, is not just further added by when compensating when number of times increases to maximum times, also
Luminance compensation is carried out no longer.
104th, according to revised compensation count parameter value, search in the corresponding offset of multigroup each GTG for prestoring
With the corresponding offset of revised compensation corresponding one group of each GTG of count parameter value；According to each ash of a group for finding
The corresponding offset of rank adjusts gamma register value, carries out gamma correction to display module.
In the present embodiment, the corresponding offset of multigroup each GTG can be deposited by arranging multigroup depositor.
In the present embodiment, device brightness and the relation of driving current, can be determined by below equation：Lu=k*I, wherein (k
For proportionality coefficient).
Driving current and the relation of data line voltage, can be determined by below equation：
I=k`* (ELVDD-Vdata)2, wherein (k` is proportionality coefficient).
The relation of brightness and data line voltage as known from the above：Lu=K* (ELVDD-Vdata)2, wherein (K=k*k`).
Therefore, the corresponding offset of each GTG for prestoring can be can determine that according to the brightness of display module and voltage relationship.
In a kind of possible embodiment, the corresponding offset of each GTG that Δ R_reg prestores can be according to following table
It is configured shown in lattice.Δ G_reg, Δ B_reg are similar.Wherein cmp represents revised compensation count parameter value.
| GTG | Cmp=1 | Cmp=2 | …… | Cmp=254 | Cmp=255 |
| R255 | Δ1R255 | Δ2R255 | …… | Δ254R255 | Δ255R255 |
| R191 | Δ1R191 | Δ2R191 | …… | Δ254R191 | Δ255R191 |
| …… | …… | …… | …… | …… | …… |
| R3 | Δ1R3 | Δ2R3 | …… | Δ254R3 | Δ255R3 |
| R1 | Δ1R1 | Δ2R1 | …… | Δ254R1 | Δ255R1 |
As an example, above table can be deposited by arranging multigroup depositor (Δ R_reg, Δ G_reg, Δ B_reg)
In the corresponding offset of multigroup each GTG that prestores, time register Time_reg deposit time parameter values are set, are arranged and is mended
Repaying number of times depositor and count parameter value cmp being compensated for cmp_reg deposits, wherein T is timer.
After setting, the time parameter values of time register Time_reg deposit are obtained first；By the time ginseng for obtaining
Numerical value is assigned to enumerator T, and starts enumerator T and start timing；If enumerator completes timing, correction-compensation number of times depositor
Compensation count parameter value cmp of cmp_reg deposits, it is assumed that compensation count parameter value cmp of compensation number of times depositor deposit is preset
For 0, incremental steps are preset as 1, then after performing for the first time, then revised compensation count parameter value cmp is 1；After amendment
Compensation count parameter value, can search in the corresponding offset of multigroup each GTG for prestoring and it is revised compensation number of times ginseng
The corresponding offset of corresponding one group of each GTG of numerical value, because at this time it is revised compensation count parameter value cmp=1, then with
It is revised to compensate the string that the corresponding offset of corresponding one group of each GTG of count parameter value is cmp=1 in above table；
The corresponding offset of one group of each GTG according to finding adjusts gamma register value, carries out gamma correction to display module.
Gamma correction method for display module provided in an embodiment of the present invention, can be by prestore one group of each GTG pair
The offset adjustment gamma register value answered, carries out gamma correction to display module；Automatic compensator part brightness is realized, is eliminated
Colour cast, reduces impact of the device aging to display effect.
Refer to shown in Fig. 2, second embodiment of the invention also proposes a kind of corresponding with first embodiment for showing mould
The gamma correcting device of group, the device include：Acquisition module 201, starting module 202, correcting module 203 and gamma correction module
204。
Acquisition module 201, for obtaining the time parameter values of time register deposit.
Starting module 202, for the time parameter values that acquisition module 201 is obtained are assigned to enumerator, and starts counting
Device starts timing.
Correcting module 203, if completing timing, the compensation number of times ginseng of correction-compensation number of times depositor deposit for enumerator
Numerical value.
In the present embodiment, correcting module 203, if completing timing for the enumerator, are repaiied using progressively incremental manner
The compensation count parameter value of number of times depositor deposit is being compensated just.
Gamma correction module 204 includes searching unit 2041 and correction unit 2042；
Searching unit 2041, it is for according to the revised compensation count parameter value of correcting module 203, multigroup each what is prestored
The corresponding compensation of one group of each GTG corresponding with revised compensation count parameter value is searched in the corresponding offset of individual GTG
Value；
Correction unit 2042, the corresponding offset adjustment of one group of each GTG for being found according to searching unit 2041
Gamma register value, carries out gamma correction to display module.
In the present embodiment, device may also include determining that module (not shown)；Determining module, for according to display mould
The brightness of group determines the time parameter values of time register deposit and the compensation time of compensation number of times depositor deposit with time relationship
Number parameter value；For the corresponding offset of each GTG for prestoring is determined according to the brightness of display module and voltage relationship.
Gamma correcting device for display module provided in an embodiment of the present invention, can be by prestore one group of each GTG pair
The offset adjustment gamma register value answered, carries out gamma correction to display module；Automatic compensator part brightness is realized, is eliminated
Colour cast, reduces impact of the device aging to display effect.
Refer to shown in Fig. 3, third embodiment of the invention proposes a kind of gamma correction method for display module, the party
Method includes：
301st, obtain the compensation count parameter value of compensation number of times depositor deposit；According to compensation count parameter value, obtain with
The time parameter values of the corresponding time register deposit of compensation count parameter value.
In the present embodiment, the compensation number of times of the time parameter values of time register deposit and the depositor deposit of compensation number of times
Parameter value can be configured according to the brightness of display module and time relationship.
Refer to shown in Fig. 5, in figure, show the device (i.e. display module) of relatively low luminous efficiency and higher photoluminescence efficiency
Attenuation curve, the device of relatively low luminous efficiency, its rate of decay are very fast.In figure, further it is shown that a relatively low luminous efficiency device
The luminance compensation curve of part.After relation of the ageing time with device brightness is known, can arrange related according to the compensating curve
Parameter is compensated.
It should be noted that the compensating curve in figure is a kind of exemplary compensating curve, it is not to be only defined in this
Plant compensating curve.
In the present embodiment, multiple time registers are provided with and have deposited multiple time parameter values, the item of time register
Number is corresponding with compensation count parameter value, for example：N item time registers, N here is compensation count parameter value.
302nd, the time parameter values of acquisition are assigned to enumerator, and start enumerator start timing.
If the 303, enumerator completes timing, the compensation count parameter value of correction-compensation number of times depositor deposit.
In the present embodiment, the compensation count parameter of progressively incremental manner correction-compensation number of times depositor deposit can be adopted
Value.It is 1 that the compensation count parameter value of compensation number of times depositor deposit is predeterminable, and it is 1 that incremental steps are predeterminable, needs explanation
It is that the default of parameter value can be adjusted by user, is not just further added by when compensating when number of times increases to maximum times, also
Luminance compensation is carried out no longer.
304th, by prestore one group of each GTG corresponding offset is adjusted gamma register value, display module is entered
Row gamma correction.
In the present embodiment, device brightness and the relation of driving current, can be determined by below equation：Lu=k*I, wherein (k
For proportionality coefficient).
Driving current and the relation of data line voltage, can be determined by below equation：
I=k`* (ELVDD-Vdata)2, wherein (k` is proportionality coefficient).
The relation of brightness and data line voltage as known from the above：Lu=K* (ELVDD-Vdata)2, wherein (K=k*k`).
Therefore, the corresponding offset of each GTG for prestoring can be can determine that according to the brightness of display module and voltage relationship.
In a kind of possible embodiment, the corresponding offset of each GTG for prestoring can enter according to shown in below table
Row is arranged.Wherein Δ R_reg, Δ G_reg, Δ B_reg represent the depositor title of the offset that prestores.
| GTG | ΔR_reg | ΔG_reg | ΔB_reg |
| R255 | ΔR255 | ΔG255 | ΔB255 |
| R191 | ΔR191 | ΔG191 | ΔB191 |
| …… | …… | …… | …… |
| R3 | ΔR3 | ΔG3 | ΔB3 |
| R1 | ΔR1 | ΔG1 | ΔB1 |
As an example, above table can be deposited by arranging one group of depositor (Δ R_reg, Δ G_reg, Δ B_reg)
In the corresponding offset of one group of each GTG that prestores, multiple time register Time_reg (cmp) are set and deposit time parameters
Value, wherein cmp are compensation count parameter value；It is cmp_reg deposit compensation count parameter values cmp to arrange compensation number of times depositor,
Wherein T is timer.
After setting, compensation count parameter value cmp of compensation number of times depositor cmp_reg deposit is obtained first, according to
Compensation count parameter value cmp, obtains the time parameter values of the time register deposit corresponding with compensation count parameter value cmp,
For example：Assume that compensation count parameter value cmp of compensation number of times depositor deposit is preset as 1, then after performing for the first time, when will obtain
The time parameter values that inter-register Time_reg (1) is deposited, and the time parameter values that time register Time_reg (1) is deposited
It is assigned to enumerator T, and starts enumerator T start timing；If enumerator completes timing, the deposit of correction-compensation number of times depositor
Compensation count parameter value, it is assumed that incremental steps are preset as 1, cmp can be modified to 2 using progressively incremental manner, the correction value
Wait and being used when performing next time；Afterwards, default one group of depositor (Δ R_reg, Δ G_reg, Δ B_reg) is deposited
The corresponding offset of one group of each GTG (offset i.e. in above table) adjustment gamma register value, display module is entered
Row gamma correction.
Gamma correction method for display module provided in an embodiment of the present invention, can be by prestore one group of each GTG pair
The offset adjustment gamma register value answered, carries out gamma correction to display module；Automatic compensator part brightness is realized, is eliminated
Colour cast, reduces impact of the device aging to display effect.
Refer to shown in Fig. 4, fourth embodiment of the invention also proposes a kind of corresponding with 3rd embodiment for showing mould
The gamma correcting device of group, the device include：Acquisition module 401, starting module 402, correcting module 403 and gamma correction module
404。
Acquisition module 401, for obtaining the compensation count parameter value of compensation number of times depositor deposit；According to compensation number of times ginseng
Numerical value, obtains the time parameter values of the time register deposit corresponding with compensation count parameter value.
Starting module 402, for the time parameter values that acquisition module 401 is obtained are assigned to enumerator, and starts counting
Device starts timing.
Correcting module 403, if completing timing, the compensation number of times ginseng of correction-compensation number of times depositor deposit for enumerator
Numerical value.
In the present embodiment, correcting module 403, if completing timing for the enumerator, are repaiied using progressively incremental manner
The compensation count parameter value of number of times depositor deposit is being compensated just.
Gamma correction module 404, for by prestore one group of each GTG corresponding offset is adjusted gamma deposit
Device value, carries out gamma correction to the display module.
In the present embodiment, device may also include determining that module (not shown)；Determining module, for according to display mould
The brightness of group determines the time parameter values of time register deposit and the compensation time of compensation number of times depositor deposit with time relationship
Number parameter value；For the corresponding offset of each GTG for prestoring is determined according to the brightness of display module and voltage relationship.
Gamma correcting device for display module provided in an embodiment of the present invention, can be by prestore one group of each GTG pair
The offset adjustment gamma register value answered, carries out gamma correction to display module；Automatic compensator part brightness is realized, is eliminated
Colour cast, reduces impact of the device aging to display effect.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of gamma correction method for display module, it is characterised in that methods described includes：
Obtain the time parameter values of time register deposit；
The time parameter values of acquisition are assigned to enumerator, and start the enumerator start timing；
If the enumerator completes timing, the compensation count parameter value of correction-compensation number of times depositor deposit；
By prestore one group of each GTG corresponding offset is adjusted gamma register value, gal is carried out to the display module
Horse corrects.
2. a kind of gamma correction method for display module according to claim 1, it is characterised in that described by will
The corresponding offset of one group of each GTG for prestoring adjusts gamma register value, carries out gamma correction bag to the display module
Include：
According to revised compensation count parameter value, search in the corresponding offset of multigroup each GTG for prestoring and repair with described
The corresponding offset of corresponding one group of each GTG of compensation count parameter value after just；
The corresponding offset of one group of each GTG according to finding adjusts gamma register value, carries out gal to the display module
Horse corrects.
3. a kind of gamma correction method for display module according to claim 1, it is characterised in that during the acquisition
The time parameter values of inter-register deposit include：
Obtain the compensation count parameter value of compensation number of times depositor deposit；According to compensation count parameter value, obtain and compensation number of times
The time parameter values of the corresponding time register deposit of parameter value.
4. a kind of gamma correction method for display module according to Claims 2 or 3, it is characterised in that described to repair
The compensation count parameter value for just compensating the deposit of number of times depositor includes：
The compensation count parameter value deposited using progressively incremental manner correction-compensation number of times depositor.
5. a kind of gamma correction method for display module according to Claims 2 or 3, it is characterised in that according to aobvious
The brightness and time relationship for showing module determines the time parameter values of the time register deposit and the depositor deposit of compensation number of times
Compensation count parameter value；The corresponding compensation of each GTG for prestoring according to the brightness of display module is determined with voltage relationship
Value.
6. a kind of gamma correcting device for display module, it is characterised in that described device includes：Acquisition module, startup mould
Block, correcting module and gamma correction module；
The acquisition module, for obtaining the time parameter values of time register deposit；
The starting module, for the time parameter values that the acquisition module is obtained are assigned to enumerator, and starts the meter
Number device starts timing；
The correcting module, if completing timing, the compensation number of times of correction-compensation number of times depositor deposit for the enumerator
Parameter value；
The gamma correction module, for by prestore one group of each GTG corresponding offset is adjusted gamma register
Value, carries out gamma correction to the display module.
7. a kind of gamma correcting device for display module according to claim 6, it is characterised in that the gamma school
Positive module includes searching unit and correction unit；
The searching unit, for according to the correcting module it is revised compensation count parameter value, prestore it is multigroup each
Search in the corresponding offset of GTG and the corresponding benefit of described revised compensation corresponding one group of each GTG of count parameter value
Repay value；
The correction unit, the corresponding offset of one group of each GTG for being found according to the searching unit adjust gamma
Register value, carries out gamma correction to the display module.
8. a kind of gamma correcting device for display module according to claim 6, it is characterised in that the acquisition mould
Block, for obtaining the compensation count parameter value of compensation number of times depositor deposit；According to compensation count parameter value, obtain and compensation time
The time parameter values of the corresponding time register deposit of number parameter value.
9. a kind of gamma correcting device for display module according to claim 7 or 8, it is characterised in that described to repair
Positive module, if completing timing for the enumerator, using the compensation of progressively incremental manner correction-compensation number of times depositor deposit
Count parameter value.
10. a kind of gamma correcting device for display module according to claim 7 or 8, it is characterised in that the dress
Put；
The determining module, for the time of the time register deposit is determined according to the brightness of display module and time relationship
Parameter value and the compensation count parameter value of compensation number of times depositor deposit；It is true for the brightness according to display module and voltage relationship
The fixed corresponding offset of each GTG for prestoring.
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Cited By (14)
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| CN108830190A (en) * | 2018-05-30 | 2018-11-16 | 昆山国显光电有限公司 | A kind of display equipment and its control method |
| CN108962140A (en) * | 2018-07-10 | 2018-12-07 | 深圳清华大学研究院 | Display driver circuit, display driving method and display device |
| CN109981843A (en) * | 2019-03-15 | 2019-07-05 | Oppo广东移动通信有限公司 | Screen processing method, apparatus, electronic equipment and the storage medium of electronic equipment |
| CN110838278A (en) * | 2018-08-16 | 2020-02-25 | 三星显示有限公司 | Display device and method of driving the same |
| CN111063289A (en) * | 2019-12-25 | 2020-04-24 | Tcl华星光电技术有限公司 | Gray scale compensation method and device and display equipment |
| CN111091790A (en) * | 2018-10-23 | 2020-05-01 | 深圳天德钰电子有限公司 | Time schedule controller and liquid crystal display device with the same |
| CN111445844A (en) * | 2019-01-17 | 2020-07-24 | 奇景光电股份有限公司 | Cumulative brightness compensation system and organic light emitting diode display |
| CN111508403A (en) * | 2019-01-31 | 2020-08-07 | 北京小米移动软件有限公司 | Method and device for determining gamma curve of display screen and electronic equipment |
| CN113096576A (en) * | 2021-04-02 | 2021-07-09 | 京东方科技集团股份有限公司 | Brightness compensation method and device and display device |
| CN113284450A (en) * | 2021-05-20 | 2021-08-20 | 京东方科技集团股份有限公司 | Method and device for compensating color cast of edge of display panel |
| CN113450703A (en) * | 2020-09-24 | 2021-09-28 | 重庆康佳光电技术研究院有限公司 | Display screen compensation method and device, computer readable storage medium and electronic equipment |
| CN114429758A (en) * | 2022-01-19 | 2022-05-03 | 苏州华星光电技术有限公司 | Method for correcting and compensating gamma voltage of display panel, device thereof and storage medium |
| CN115170681A (en) * | 2022-09-06 | 2022-10-11 | 宏晶微电子科技股份有限公司 | Gamma lookup table generation method and device, electronic equipment and storage medium |
| CN111508403B (en) * | 2019-01-31 | 2024-04-30 | 北京小米移动软件有限公司 | Method and device for determining gamma curve of display screen and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108830190A (en) * | 2018-05-30 | 2018-11-16 | 昆山国显光电有限公司 | A kind of display equipment and its control method |
| CN108962140A (en) * | 2018-07-10 | 2018-12-07 | 深圳清华大学研究院 | Display driver circuit, display driving method and display device |
| CN108962140B (en) * | 2018-07-10 | 2020-04-10 | 深圳清华大学研究院 | Display driving circuit, display driving method and display device |
| CN110838278A (en) * | 2018-08-16 | 2020-02-25 | 三星显示有限公司 | Display device and method of driving the same |
| CN111091790A (en) * | 2018-10-23 | 2020-05-01 | 深圳天德钰电子有限公司 | Time schedule controller and liquid crystal display device with the same |
| CN111445844B (en) * | 2019-01-17 | 2021-09-21 | 奇景光电股份有限公司 | Cumulative brightness compensation system and organic light emitting diode display |
| CN111445844A (en) * | 2019-01-17 | 2020-07-24 | 奇景光电股份有限公司 | Cumulative brightness compensation system and organic light emitting diode display |
| CN111508403B (en) * | 2019-01-31 | 2024-04-30 | 北京小米移动软件有限公司 | Method and device for determining gamma curve of display screen and electronic equipment |
| CN111508403A (en) * | 2019-01-31 | 2020-08-07 | 北京小米移动软件有限公司 | Method and device for determining gamma curve of display screen and electronic equipment |
| CN109981843A (en) * | 2019-03-15 | 2019-07-05 | Oppo广东移动通信有限公司 | Screen processing method, apparatus, electronic equipment and the storage medium of electronic equipment |
| CN109981843B (en) * | 2019-03-15 | 2020-12-08 | Oppo广东移动通信有限公司 | Screen processing method and device of electronic equipment, electronic equipment and storage medium |
| CN111063289A (en) * | 2019-12-25 | 2020-04-24 | Tcl华星光电技术有限公司 | Gray scale compensation method and device and display equipment |
| CN113450703A (en) * | 2020-09-24 | 2021-09-28 | 重庆康佳光电技术研究院有限公司 | Display screen compensation method and device, computer readable storage medium and electronic equipment |
| CN113096576A (en) * | 2021-04-02 | 2021-07-09 | 京东方科技集团股份有限公司 | Brightness compensation method and device and display device |
| CN113284450A (en) * | 2021-05-20 | 2021-08-20 | 京东方科技集团股份有限公司 | Method and device for compensating color cast of edge of display panel |
| CN113284450B (en) * | 2021-05-20 | 2023-11-28 | 京东方科技集团股份有限公司 | Display panel edge color cast compensation method and device |
| CN114429758A (en) * | 2022-01-19 | 2022-05-03 | 苏州华星光电技术有限公司 | Method for correcting and compensating gamma voltage of display panel, device thereof and storage medium |
| CN114429758B (en) * | 2022-01-19 | 2023-07-25 | 苏州华星光电技术有限公司 | Correction compensation method for gamma voltage of display panel, equipment and storage medium thereof |
| CN115170681A (en) * | 2022-09-06 | 2022-10-11 | 宏晶微电子科技股份有限公司 | Gamma lookup table generation method and device, electronic equipment and storage medium |
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