CN109637475A - The gamma-debugged method of display panel - Google Patents
The gamma-debugged method of display panel Download PDFInfo
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- CN109637475A CN109637475A CN201811572091.0A CN201811572091A CN109637475A CN 109637475 A CN109637475 A CN 109637475A CN 201811572091 A CN201811572091 A CN 201811572091A CN 109637475 A CN109637475 A CN 109637475A
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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
- G09G3/36—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 using liquid crystals
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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
- G09G3/36—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 using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- Crystallography & Structural Chemistry (AREA)
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The application provides a kind of gamma-debugged method of display panel, it include: the brightness that boundary grayscale is obtained by sensor, by boundary luminances obtain it is other tie up a grayscale estimate bright amount, a gray scale voltage is tied up in adjusting to be kept the brightness for tying up a grayscale equivalent or is comparable to estimate brightness, the corresponding gamma electric voltage data for obtaining boundary gray-scale intensity and tying up a gray-scale intensity, it is stored at gamma driving chip, so that with the gamma curve after debugging when display panel operates.
Description
Technical field
This application involves display fields, more particularly to a kind of gamma-debugged method of display panel.
Background technique
TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film transistor (TFT) display dress
Set) be current flat panel display device one of principal item, it is flat to have become modern IT, display important in video product
Platform.R/G/B compressed signal, control signal and power are passed through wire rod and printing electricity by the system board of thin film transistor liquid crystal display device
Connector (Connector) on road (PCB) plate is connected, data by printed circuit board timing controller (TCON,
Timing Controller) processing after, through pcb board, pass through source driving chip (S-COF, Source-Chip on Film)
It is connect with grid drive chip (G-COF, Gate-Chip on Film) with viewing area, so that needed for display device obtains
Power supply, signal.
The brightness of display device according to light transmittance is divided into L0-L255, and totally 256 grayscale are shown, are added in liquid crystal by changing
The voltage at both ends, thus it is possible to vary transmitance of the light in liquid crystal realizes gray scale variation.And human eye is to the bright variation phase of low ash rank
To sensitivity, so in field of liquid crystal display, in order to allow human eye correctly to perceive picture, gamma correction can be introduced in design, allows view
There are one-to-one relationship, the value of preferable gamma curve is between 2.2 ± 0.2 for frequency information and visual brightness.Business men
Panel sample by extracting 10 multi-discs is debugged, guarantee the value of the gamma curve of every sample all 2.2 ± 0.2 it
Between, then determine suitable gamma data, is burnt in other panels with batch.But since the good degree control difficulty of processing procedure is big,
It cannot be guaranteed that the light transmission per a piece of liquid crystal display is identical, this will lead to gamma correction inaccuracy.Use debugs to obtain with sample
Gamma data burning after gamma driving chip, the value for finally measuring the gamma curve of the panel of batch is then 2.2 ± 0.6
Between, debugging effect is bad.If to each panel all carry out it is each tie up the gamma-debugged of a grayscale, this needs to expend a large amount of
Time and cost debugged, greatly reduce production efficiency.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the application is, provides a kind of gamma-debugged method of display panel.
It the purpose of the application and solves its technical problem and adopts the following technical solutions to realize.It is proposed according to the application
A kind of display panel gamma-debugged method, comprising: by sensor obtain sample panel the first of the first boundary grayscale
Brightness, and the second brightness in the second boundary grayscale；By first brightness and second brightness, it is according to gamma value
2.2 calculating formula calculates and multiple ties up that a grayscale is corresponding multiple to estimate brightness；Adjust that the multiple to tie up a grayscale corresponding more
It is a to tie up a gray scale voltage, make respectively it is the multiple tie up a grayscale it is multiple tie up brightness it is equivalent or be comparable to it is the multiple estimate it is bright
Degree；Obtain corresponding first brightness, second brightness and the multiple multiple gamma electric voltage data for tying up brightness；With
And by the multiple gamma electric voltage data storage in gamma driving chip, so that display panel has the gamma curve after debugging.
In the embodiment of the application, first boundary grayscale is lower limit grayscale, and the second boundary grayscale is upper
Limit grayscale；Alternatively, first boundary grayscale is upper limit grayscale, the second boundary grayscale is lower limit grayscale.
In the embodiment of the application, the calculating formula for estimating brightness is Lgray=(gray/255) ^2.2*
(Lmax-Lmin)+Lmin；Wherein, Lgray estimates brightness for binding grayscale is corresponding, and gray is binding grayscale, and Lmax is described
The maximum brightness of upper limit grayscale, Lmin are the minimum brightness of the lower limit grayscale.
In the embodiment of the application, the upper limit grayscale includes the main grayscale of the upper limit and the upper limit time grayscale, the lower limit
Grayscale includes the main grayscale of lower limit and lower limit time grayscale.
In the embodiment of the application, corresponding first brightness of the acquirement, second brightness with it is the multiple
The step of tying up multiple gamma electric voltage data of brightness includes: that at least one sampling panel is taken out from multiple display panels；
Obtain the upper limit time grayscale of at least one sampling panel and multiple gray scale voltages of the lower limit time grayscale；And according to
Obtaining the upper limit time grayscale and the lower limit according to the multiple gray scale voltage, secondary grayscale is corresponding ties up a gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the lower limit time grayscale is the lower limit time grayscale
The average value of corresponding gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the upper limit time grayscale is the upper limit time grayscale
The average value of corresponding gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the lower limit time grayscale is the lower limit time grayscale
The median of corresponding gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the upper limit time grayscale is the upper limit time grayscale
The median of corresponding gray scale voltage.
In the embodiment of the application, at least one sampling panel is one of multiple display panels.
In the embodiment of the application, at least one sampling panel is the part of multiple display panels.
In the embodiment of the application, at least one sampling panel is the whole of multiple display panels.
It is not including first boundary grayscale and the second boundary grayscale in the embodiment of the application, it is described
Multiple quantity for tying up a grayscale are not less than three.
In the embodiment of the application, the multiple gamma electric voltage data include at least five groups of gray scale voltages.
In the embodiment of the application, every group of gray scale voltage includes positive polarity, corresponding two gray scale voltages of negative polarity.
In the embodiment of the application, the grayscale specification is 8 bits (bit).
In the embodiment of the application, the upper limit grayscale is grayscale 255, and the lower limit grayscale is grayscale 0.
In the embodiment of the application, the upper limit time grayscale is grayscale 254, and the lower limit time grayscale is grayscale 1.
In the embodiment of the application, it is the multiple tie up a grayscale include boundary between grayscale 254 and grayscale 1 at least
Three are tied up a grayscale.
In the embodiment of the application, a multiple grayscale of tying up is including at least grayscale 32, grayscale 128, grayscale 223 3
It is a to tie up a grayscale.
In the embodiment of the application, the grayscale specification is 10 bits (bit).
In the embodiment of the application, the upper limit grayscale is grayscale 1023, and the lower limit grayscale is grayscale 0.
In the embodiment of the application, the upper limit time grayscale is grayscale 1022, and the lower limit time grayscale is grayscale 1.
In the embodiment of the application, it is the multiple tie up a grayscale include boundary between grayscale 1022 and grayscale 1 extremely
Few three are tied up a grayscale.
In the embodiment of the application, gamma curve debugging is carried out to each display panel, and make after debugging
The gamma value of gamma curve is between 2.2 ± 0.2.
In the embodiment of the application, every group tie up a gray scale voltage include positive polarity, negative polarity corresponding two tie up a little
Gray scale voltage.
It the purpose of the application and solves its technical problem also following technical measures can be used to further realize.
The another object of the application is a kind of gamma-debugged method of display panel, comprising: obtains sample by sensor
First brightness of the panel in the main grayscale of the upper limit, and the second brightness in the main grayscale of lower limit；Pass through first brightness and described
Two brightness, the calculating formula for being 2.2 according to gamma value calculate and multiple tie up that a grayscale is corresponding multiple to estimate brightness；Described in adjusting
It is multiple tie up a grayscale it is corresponding it is multiple tie up a gray scale voltage, make respectively it is the multiple tie up a grayscale it is multiple tie up brightness it is equivalent or
It is comparable to and the multiple estimates brightness；The gray scale voltage and lower limit time ash of the upper limit time grayscale are obtained from more than one sample panel
Multiple gray scale voltages of rank calculate separately out the average voltage number for respectively corresponding the upper limit time grayscale and the lower limit time grayscale
According to；Obtain corresponding first brightness, second brightness and the multiple multiple gamma electric voltage data for tying up brightness；With
And by the multiple gamma electric voltage data and the average voltage data storage in gamma driving chip, so that display panel has
Gamma curve after having debugging；Wherein, grayscale specification is 8 bits；Wherein, the main grayscale of the upper limit, the upper limit time grayscale, the main grayscale of lower limit
It is respectively grayscale 255, grayscale 254, grayscale 1 and grayscale 0 with lower limit time grayscale；Wherein, a multiple grayscale of tying up includes at least
Grayscale 32, grayscale 128, grayscale 223 3 tie up a grayscale.
The application passes through the gamma electric voltage of fixed boundary gray-scale intensity, can relatively reduce and need that adjusts to tie up a gray number
Amount, and compared with can precisely debug the gamma electric voltage for tying up a grayscale so that after the adjustment of display panel the value of gamma curve between
Between 2.2 ± 0.2, and debug by sampling the gamma electric voltage of time boundary grayscale, can also reduce panel carry out it is gamma-debugged
Time improves the debugging efficiency of panel while guaranteeing precision.
Detailed description of the invention
Fig. 1 is the gamma-debugged flow chart of the display panel of one embodiment of the application.
Fig. 2 is the gamma-debugged flow chart of the display panel of one embodiment of the application.
Fig. 3 is the gamma-debugged flow chart of the display panel of one embodiment of the application.
Fig. 4 is the flow chart of the first gamma data of acquisition of one embodiment of the application.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the application with reference to additional schema
Example.The direction term that the application is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outside", " side "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the application, rather than to
Limit the application.
Attached drawing and explanation are considered inherently illustrative, rather than restrictive.The similar list of structure in the figure
Member is to be given the same reference numerals.In addition, in order to understand and be convenient for description, the size and thickness of each component shown in the accompanying drawings are
It is arbitrarily shown, but the application is without being limited thereto.
In addition, in the description, unless explicitly described as opposite, otherwise word " comprising " will be understood as meaning to wrap
The component is included, but is not excluded for any other component.In addition, in the description, " above " means to be located at target group
Part either above or below, and be not intended to must be positioned on the top based on gravity direction.
Further to illustrate that the application is the technical means and efficacy reaching predetermined goal of the invention and being taken, below in conjunction with
Attached drawing and specific embodiment, to according to the application propose one kind, specific embodiment, structure, feature and its effect, in detail
It describes in detail bright as after.
Fig. 1 is the gamma-debugged flow chart of exemplary display panel.Referring to FIG. 1, a kind of gamma tune of display panel
Method for testing, comprising the following steps:
Step S101: multiple display panels are extracted from the display panel of batch.Wherein, described to extract multiple display panels
Quantity may be, for example, several, more than ten or tens display panels.
Step S102: it is corresponding multiple under different grayscale and brightness that the multiple display panels extracted are obtained by sensor
Gray scale voltage.
Step S103: by the multiple gray scale voltages and standard gamma curve of acquisition, to multiple display panels of extraction
Gamma curve debugging is carried out, so that the value of the gamma curve of display panel, all between 2.2 ± 0.2, acquisition is corresponding to tie up an ash
Rank voltage and gamma value.
Step S104: that collects multiple display panels ties up a gray scale voltage, takes its average value, obtains multiple groups and ties up a grayscale electricity
The multiple groups gamma data of pressure and corresponding voltage.
Step S105: obtained multiple groups gamma data is burned onto the gamma driving chip of the batch display panel, with
This completes to debug the gamma curve of multiple display panels.
Fig. 2 is the gamma-debugged flow chart of the display panel of one embodiment of the application.Referring to FIG. 2, the one of the application
In embodiment, a kind of gamma-debugged method of display panel, comprising the following steps:
Step S210: sample panel is obtained in the first brightness of the first boundary grayscale, and in the second boundary by sensor
Second brightness of grayscale.
Step S220: by first brightness and second brightness, the calculating formula for being 2.2 according to gamma value is calculated
It is multiple out to tie up that a grayscale is corresponding multiple to estimate brightness.
Step S230: adjust it is the multiple tie up a grayscale it is corresponding it is multiple tie up a gray scale voltage, make the multiple tie up respectively
To tie up brightness equivalent or be comparable to and the multiple estimate brightness by point grayscale multiple.
Step S240: corresponding first brightness, second brightness and the multiple multiple gals for tying up brightness are obtained
Horse voltage data.
Step S250: it by the multiple gamma electric voltage data storage in gamma driving chip, is adjusted so that display panel has
Gamma curve after examination.
In the embodiment of the application, first boundary grayscale is lower limit grayscale, and the second boundary grayscale is upper
Limit grayscale；Alternatively, first boundary grayscale is upper limit grayscale, the second boundary grayscale is lower limit grayscale.
In the embodiment of the application, the calculating formula for estimating brightness is Lgray=(gray/255) ^2.2*
(Lmax-Lmin)+Lmin；Wherein, Lgray estimates brightness for binding grayscale is corresponding, and gray is binding grayscale, and Lmax is described
The maximum brightness of upper limit grayscale, Lmin are the minimum brightness of the lower limit grayscale.
In the embodiment of the application, the upper limit grayscale includes the main grayscale of the upper limit and the upper limit time grayscale, the lower limit
Grayscale includes the main grayscale of lower limit and lower limit time grayscale.
Fig. 3 is the gamma-debugged detailed flowchart of the display panel of one embodiment of the application.It please also refer to Fig. 1 to Fig. 2,
In the embodiment of the application, step S240, comprising the following steps:
Step S241: at least one sampling panel is taken out from multiple display panels；.
Step S242: the upper limit time grayscale of at least one sampling panel described in obtaining is multiple with the secondary grayscale of the lower limit
Gray scale voltage.
Step S243: it is corresponding with the lower limit time grayscale that the upper limit time grayscale is obtained according to the multiple gray scale voltage
Tie up a gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the lower limit time grayscale is the lower limit time grayscale
The average value of corresponding gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the upper limit time grayscale is the upper limit time grayscale
The average value of corresponding gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the lower limit time grayscale is the lower limit time grayscale
The median of corresponding gray scale voltage.
In the embodiment of the application, the corresponding gray scale voltage of tying up of the upper limit time grayscale is the upper limit time grayscale
The median of corresponding gray scale voltage.
In the embodiment of the application, at least one sampling panel is one of multiple display panels.
In the embodiment of the application, at least one sampling panel is the part of multiple display panels.
In the embodiment of the application, at least one sampling panel is the whole of multiple display panels.
It is not including first boundary grayscale and the second boundary grayscale in the embodiment of the application, it is described
Multiple quantity for tying up a grayscale are not less than three.
In the embodiment of the application, first boundary grayscale, the second boundary grayscale are tied up a little with the multiple
Grayscale, the corresponding the multiple gamma electric voltage data of these grayscale include at least five groups of gray scale voltages.
In the embodiment of the application, every group of gray scale voltage includes positive polarity, corresponding two gray scale voltages of negative polarity.
In the embodiment of the application, the grayscale specification is 8 bits (bit).
In the embodiment of the application, the upper limit grayscale is grayscale 255, and the lower limit grayscale is grayscale 0.
In the embodiment of the application, the upper limit time grayscale is grayscale 254, and the lower limit time grayscale is grayscale 1.
In the embodiment of the application, it is the multiple tie up a grayscale include boundary between grayscale 254 and grayscale 1 at least
Three are tied up a grayscale.
In the embodiment of the application, a multiple grayscale of tying up is including at least grayscale 32, grayscale 128, grayscale 223 3
It is a to tie up a grayscale.
In the embodiment of the application, the grayscale specification is 10 bits (bit).
In the embodiment of the application, the upper limit grayscale is grayscale 1023, and the lower limit grayscale is grayscale 0.
In the embodiment of the application, the upper limit time grayscale is grayscale 1022, and the lower limit time grayscale is grayscale 1.
In the embodiment of the application, it is the multiple tie up a grayscale include boundary between grayscale 1022 and grayscale 1 extremely
Few three are tied up a grayscale.
In the embodiment of the application, gamma curve debugging is carried out to each display panel, and make after debugging
The gamma value of gamma curve is between 2.2 ± 0.2.
In the embodiment of the application, every group tie up a gray scale voltage include positive polarity, negative polarity corresponding two tie up a little
Gray scale voltage.
Fig. 4 is the flow chart of first group of gamma data of acquisition of one embodiment of the application.In the embodiment of the application,
The step of obtaining first gamma data include:
Step S401: sample panel is obtained in the first brightness of the main grayscale of the upper limit, and in the main grayscale of lower limit by sensor
The second brightness.
Step S402: by first brightness and second brightness, the calculating formula for being 2.2 according to gamma value is calculated
It is multiple out to tie up that a grayscale is corresponding multiple to estimate brightness.
Step S403: adjust it is the multiple tie up a grayscale it is corresponding it is multiple tie up a gray scale voltage, make the multiple tie up respectively
To tie up brightness equivalent or be comparable to and the multiple estimate brightness by point grayscale multiple.
Step S404: from more than one sample panel obtain the upper limit time grayscale gray scale voltage and lower limit time grayscale it is more
A gray scale voltage calculates separately out the average voltage data for respectively corresponding the upper limit time grayscale and the lower limit time grayscale.
Step S405: corresponding first brightness, second brightness and the multiple multiple gals for tying up brightness are obtained
Horse voltage data.
Step S406: by the multiple gamma electric voltage data and the average voltage data storage in gamma driving chip,
So that display panel has the gamma curve after debugging.
In the embodiment of the application, grayscale specification is 8 bits；Wherein, the main grayscale of the upper limit, the upper limit time grayscale, lower limit
Main grayscale and lower limit time grayscale are respectively grayscale 255, grayscale 254, grayscale 1 and grayscale 0；Wherein, the multiple to tie up a grayscale extremely
A grayscale is tied up including grayscale 32, grayscale 128, grayscale 223 3 less
In the embodiment of the application, every group tie up a gray scale voltage include positive polarity, negative polarity corresponding two tie up a little
Gray scale voltage.
In the embodiment of the application, the main grayscale of the upper limit, the main grayscale of lower limit, the upper limit time grayscale, lower limit time grayscale
Also it is considered as and ties up a grayscale, it is described to tie up a gray scale voltage and tie up a gray scale voltage including at least seven groups.
In the embodiment of the application, it is described tie up a grayscale include 0,1,32,128,223,254,255 totally seven tie up a little
Grayscale.
In some embodiments, grayscale can also be divided into the grayscale of other numbers according to transmitance by display panel, such as
0-383 grayscale or 0-511 grayscale etc., the highest grayscale can accordingly be adjusted according to gray number, be not limited to 0-255 grayscale,
The grayscale of 0-1023 grayscale or its environs.
In some embodiments, the display panel of the application may be, for example, liquid crystal display panel, so without being limited thereto, also may be used
For VA (Vertical Alignment, vertically oriented) display panel, IPS (In-Plane Switching, plane conversion screen
Curtain) display panel, TN (Twisted Nematic, twisted-nematic) display panel, OCB (Optically Compensated
Bend/Optical Compensated Birefringence, optical compensation curved arrangement/optical compensation birefringence) display surface
Plate, STN (Super Twisted Nematic, super twisted nematic) display panel, curved face type display panel or other types are shown
Panel.
The application passes through the gamma electric voltage of fixed boundary gray-scale intensity, can relatively reduce and need that adjusts to tie up a gray number
Amount, and compared with can precisely debug the gamma electric voltage for tying up a grayscale so that after the adjustment of display panel the value of gamma curve between
Between 2.2 ± 0.2, and debug by sampling the gamma electric voltage of time boundary grayscale, can also reduce panel carry out it is gamma-debugged
Time improves the debugging efficiency of panel while guaranteeing precision.
" in some embodiments " and " in various embodiments " terms are used repeatedly etc..The term is not usually
Refer to identical embodiment；But it may also mean that identical embodiment.The words such as "comprising", " having " and " comprising " are synonymous
Word, unless its context meaning shows other meanings.
The above is only embodiments herein, not makes any form of restriction to the application, although the application
It is disclosed above with specific embodiment, however it is not limited to the application, any person skilled in the art, not
It is detached within the scope of technical scheme, when the technology contents using the disclosure above make a little change or are modified to equivalent change
The equivalent embodiment of change, but all contents without departing from technical scheme, the technical spirit according to the application is to the above reality
Any simple modification, equivalent change and modification made by example are applied, in the range of still falling within technical scheme.
Claims (10)
1. a kind of gamma-debugged method of display panel characterized by comprising
Sample panel is obtained in the first brightness of the first boundary grayscale, and in the second bright of the second boundary grayscale by sensor
Degree；
By first brightness and second brightness, the calculating formula for being 2.2 according to gamma value calculates and multiple ties up a grayscale
It is corresponding multiple to estimate brightness；
Adjust it is the multiple tie up a grayscale it is corresponding it is multiple tie up a gray scale voltage, make the multiple to tie up the multiple of a grayscale and tie up respectively
Point brightness is equivalent or is comparable to and the multiple estimates brightness；
Obtain corresponding first brightness, second brightness and the multiple multiple gamma electric voltage data for tying up brightness；With
And
By the multiple gamma electric voltage data storage in gamma driving chip, so that display panel has the gamma after debugging bent
Line.
2. the gamma-debugged method of display panel as described in claim 1, which is characterized in that under first boundary grayscale is
Grayscale is limited, the second boundary grayscale is upper limit grayscale；Alternatively, first boundary grayscale is upper limit grayscale, second side
Boundary's grayscale is lower limit grayscale.
3. the gamma-debugged method of display panel as claimed in claim 2, which is characterized in that the upper limit grayscale includes the upper limit
Main grayscale and the upper limit time grayscale, the lower limit grayscale include the main grayscale of lower limit and lower limit time grayscale.
4. the gamma-debugged method of display panel as claimed in claim 3, which is characterized in that the acquirement corresponding described first
Brightness, second brightness and the step of the multiple multiple gamma electric voltage data for tying up brightness include:
At least one sampling panel is taken out from multiple display panels；
Obtain the upper limit time grayscale of at least one sampling panel and multiple gray scale voltages of the lower limit time grayscale；And
Obtaining the upper limit time grayscale and the lower limit according to the multiple gray scale voltage, secondary grayscale is corresponding ties up a gray scale voltage.
5. the gamma-debugged method of display panel as claimed in claim 4, which is characterized in that the lower limit time grayscale is corresponding
Tie up the average value that a gray scale voltage is the corresponding gray scale voltage of the lower limit time grayscale；Time grayscale is corresponding ties up an ash for the upper limit
Rank voltage is the average value of the corresponding gray scale voltage of the upper limit time grayscale.
6. the gamma-debugged method of display panel as claimed in claim 4, which is characterized in that the lower limit time grayscale is corresponding
Tie up the median that a gray scale voltage is the corresponding gray scale voltage of the lower limit time grayscale；Time grayscale is corresponding ties up an ash for the upper limit
Rank voltage is the median of the corresponding gray scale voltage of the upper limit time grayscale.
7. the gamma-debugged method of display panel as claimed in claim 4, which is characterized in that it is described at least one sampling panel be
One of multiple display panels, partially or fully.
8. the gamma-debugged method of display panel as described in claim 1, which is characterized in that the multiple number for tying up a grayscale
Amount is not less than three.
9. the gamma-debugged method of display panel as described in claim 1, which is characterized in that each display panel into
The debugging of row gamma curve, and make the gamma value of the gamma curve after debugging between 2.2 ± 0.2.
10. a kind of gamma-debugged method of display panel characterized by comprising
Sample panel is obtained in the first brightness of the main grayscale of the upper limit, and the second brightness in the main grayscale of lower limit by sensor；
By first brightness and second brightness, the calculating formula for being 2.2 according to gamma value calculates and multiple ties up a grayscale
It is corresponding multiple to estimate brightness；
Adjust it is the multiple tie up a grayscale it is corresponding it is multiple tie up a gray scale voltage, make the multiple to tie up the multiple of a grayscale and tie up respectively
Point brightness is equivalent or is comparable to and the multiple estimates brightness；
The gray scale voltage of the upper limit time grayscale and multiple gray scale voltages of lower limit time grayscale are obtained from more than one sample panel, point
The average voltage data for respectively corresponding the upper limit time grayscale and the lower limit time grayscale are not calculated；
Obtain corresponding first brightness, second brightness and the multiple multiple gamma electric voltage data for tying up brightness；With
And
By the multiple gamma electric voltage data and the average voltage data storage in gamma driving chip, so that display panel has
Gamma curve after having debugging；
Wherein, grayscale specification is 8 bits；
Wherein, the main grayscale of the upper limit, the upper limit time grayscale, the main grayscale of lower limit and lower limit time grayscale are respectively grayscale 255, grayscale 254, ash
Rank 1 and grayscale 0；
Wherein, it is the multiple tie up a grayscale including at least grayscale 32, grayscale 128, grayscale 223 3 tie up a grayscale.
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