CN106128383A - gamma curve adjustment method - Google Patents
gamma curve adjustment method Download PDFInfo
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- CN106128383A CN106128383A CN201610719942.4A CN201610719942A CN106128383A CN 106128383 A CN106128383 A CN 106128383A CN 201610719942 A CN201610719942 A CN 201610719942A CN 106128383 A CN106128383 A CN 106128383A
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- liquid crystal
- crystal indicator
- debugging
- gamma curve
- brightness
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Picture Signal Circuits (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The open a kind of gamma curve adjustment method of the present invention, including: first liquid crystal indicator to n-th liquid crystal indicator carrying out gamma curve debugging, and records N number of gray scale voltage of institute's burning after debugging, N is the integer more than or equal to 2；Calculate the average gray scale voltage of described N number of gray scale voltage；The N+1 liquid crystal indicator is entered in described average gray scale voltage burning；And described the N+1 liquid crystal indicator is carried out gamma curve debugging.Gamma curve adjustment method of the present invention can improve the gamma curve debugging efficiency of liquid crystal indicator.
Description
Technical field
The present invention relates to liquid crystal indicator debugging technique field, particularly relate to a kind of gamma curve adjustment method.
Background technology
Along with the development of electronic product, thin-film transistor LCD device (Thin Film Transistor
Liquid Crystal Display.TFT-LCD) application is the most ripe.
User is when watching the display picture of liquid crystal indicator, owing to feeling of human eye and actual video data are to have
Difference, so the brightness of display picture can't be isometric straight line with gray scale curve, from the point of view of different populations, can deposit
At different gamma curves (Gamma).
Generally, P-Gamma IC (the Gamma correction buffer circuit able to programme controlling mainboard of liquid crystal indicator
Chip) in would generally keep in one group of P-Gamma value (gray scale voltage), this group P-Gamma value debugged out in the design phase,
But due to the diversity of processing procedure, this group P-Gamma value is difficult to be simultaneously suitable for every a collection of display panels, is easily caused not
The optical characteristics performance of same display panels there are differences, and even deviates from out setting value.Such as the γ of gamma curve
From the point of view of the design requirement of 2.2, have the γ performance scope beyond 2.2 ± 0.2 specifications of a lot of display panels, even
The optics display that likely can cause full wafer display panels is abnormal (fail), needs exist for Auto P-Gamma this time
The technology of (Gamma correction buffer circuit able to programme rectification), carries out gamma curve debugging to every a piece of display panels, makes every
The γ of the gamma curve of sheet display panels is as close as 2.2.
During gamma curve is debugged, if this group P-Gamma value is just applicable to display panels, the most only need
The acknowledging time of 2～3 seconds, can direct bypass (once passing through).If this group P-Gamma value is not suitable for LCD
Plate then needs to utilize Auto P-Gamma technology once to debug, and needs about 20s, adds many testing times, causes
Produce being greatly lowered of line efficiency.
Summary of the invention
The technical problem to be solved is to provide a kind of gamma curve adjustment method, it is possible to increase liquid crystal display
The gamma curve debugging efficiency of device.
To achieve these goals, embodiment of the present invention adopts the following technical scheme that
A kind of gamma curve adjustment method is provided, including:
First liquid crystal indicator to n-th liquid crystal indicator is carried out gamma curve debugging, and after recording debugging
N number of gray scale voltage of institute's burning, N is the integer more than or equal to 2；
Calculate the average gray scale voltage of described N number of gray scale voltage；
The N+1 liquid crystal indicator is entered in described average gray scale voltage burning；And
Described the N+1 liquid crystal indicator is carried out gamma curve debugging.
Wherein, described " first liquid crystal indicator is carried out gamma curve debugging to n-th liquid crystal indicator " bag
Include:
Debugging apparatus provides initial gray scale voltage to ignition device；
Described ignition device lights the liquid crystal display of described first liquid crystal indicator according to described initial gray scale voltage
Panel；
Luminance detection device gathers the brightness of the display panels of described first liquid crystal indicator；And
According to described brightness, described debugging apparatus judges that the gamma curve of described first liquid crystal indicator is the most qualified,
If it is not, the driving chip of described first liquid crystal indicator is entered in gray scale voltage burning after then forming debugging.
Wherein, described " first liquid crystal indicator is carried out gamma curve debugging to n-th liquid crystal indicator " also
Including:
If the gamma curve of described first liquid crystal indicator is qualified, the most directly pass through.
Wherein, described " described the N+1 liquid crystal indicator is carried out gamma curve debugging " including:
Debugging apparatus provides described average gray scale voltage to ignition device；
Described ignition device lights the liquid crystal display of described N+1 liquid crystal indicator according to described initial gray scale voltage
Panel；
Luminance detection device gathers the brightness of the display panels of described N+1 liquid crystal indicator；And
According to described brightness, described debugging apparatus judges whether the gamma curve of described N+1 liquid crystal indicator closes
Lattice, the most directly pass through.
Wherein, described " described the N+1 liquid crystal indicator is debugged " also include:
If the gamma curve of described N+1 liquid crystal indicator is defective, then forms the gray scale voltage after debugging and burn
Record the driving chip into described N+1 liquid crystal indicator.
Wherein, described N is more than or equal to 200.
Wherein, described " first liquid crystal indicator is carried out gamma curve debugging to n-th liquid crystal indicator " bag
Include:
Described first liquid crystal indicator is debugged, and the gray scale voltage burning after debugging is entered described first
The driving chip of liquid crystal indicator；
Described first liquid crystal indicator is carried out brightness check and correction；And
If defective, the most again debug described first liquid crystal indicator or check debugging equipment.
Wherein, described " described first liquid crystal indicator is carried out brightness check and correction " including:
By debugging during described first liquid crystal indicator the brightness corresponding to 0 GTG and corresponding to 255 ash
The brightness on rank, calculates 1 GTG of described first liquid crystal indicator to the multiple theoretical brightness model corresponding to 254 GTGs
Enclose；
Ignition device lights the liquid crystal display of described first liquid crystal indicator according to the gray scale voltage after described debugging
Panel；
Luminance detection device gathers the check and correction brightness of the display panels of described first liquid crystal indicator, including 1
GTG is to the multiple check and correction brightness corresponding to 254 GTGs；And
Described debugging apparatus judges that the plurality of check and correction brightness falls into the plurality of theoretical brightness model the most correspondingly
In enclosing.
Wherein, the theoretical brightness range of the M GTG of described first liquid crystal indicator is:
Wherein, M is the integer more than or equal to 1 and less than or equal to 254, and L255 is the described brightness corresponding to 255 GTGs, L0
For the described brightness corresponding to 0 GTG, γ is the ideal gamma value of described first liquid crystal indicator.
Wherein, if described first liquid crystal indicator carries out brightness, check and correction is qualified, then debugging is passed through.
Compared to prior art, the method have the advantages that
Described in embodiment of the present invention, owing to the performance of same batch display panels is close, therefore by debugging
The average gray scale voltage of the described N number of gray scale voltage drawn can be applicable to most of display panels of same batch.Institute
State gamma curve adjustment method by advance described the N+1 liquid crystal indicator being entered in described average gray scale voltage burning, then
Carry out the gamma curve debugging of N+1 liquid crystal indicator, drastically increase described N+1 liquid crystal indicator
Bypass (once passing through) rate, is effectively reduced the debugging time, thus the gamma improving described N+1 liquid crystal indicator is bent
Line debugging efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that technical scheme, the accompanying drawing used required in embodiment will be made below
Introduce simply, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, general for this area
From the point of view of logical technical staff, on the premise of not paying creative work, it is also possible to as these accompanying drawings obtain other accompanying drawing.
Fig. 1 is the flow chart of a kind of gamma curve adjustment method that embodiment of the present invention provides.
Fig. 2 is the schematic block diagram of a kind of gamma curve commissioning device that embodiment of the present invention provides.
Fig. 3 is the flow chart of step S100 in Fig. 1.
Fig. 4 is the flow chart of step S400 in Fig. 1.
Fig. 5 is another flow chart of step S100 in Fig. 1.
Fig. 6 is the flow chart of step S120 in Fig. 5.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole realities
Execute mode.Based on the embodiment in the present invention, those of ordinary skill in the art are institute under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Referring to Fig. 1, embodiment of the present invention provides a kind of gamma curve adjustment method, in order to liquid crystal indicator
Gamma curve is debugged.Described gamma curve adjustment method includes:
S100: first liquid crystal indicator is carried out gamma curve debugging to n-th liquid crystal indicator, and records tune
N number of gray scale voltage of institute's burning after examination, N is the integer more than or equal to 2；
S200: calculate the average gray scale voltage of described N number of gray scale voltage；
S300: the N+1 liquid crystal indicator is entered in described average gray scale voltage burning；
S400: described the N+1 liquid crystal indicator is debugged.
In the present embodiment, owing to the performance of same batch display panels is close, therefore by debugging gained
The average gray scale voltage of the described N number of gray scale voltage gone out can be applicable to most of display panels of same batch.Described gal
Horse curve adjustment method is by entering described the N+1 liquid crystal indicator (step by described average gray scale voltage burning in advance
S300), then carry out N+1 liquid crystal indicator gamma curve debugging (step S400), drastically increase described N+1
Bypass (the once passing through) rate of individual liquid crystal indicator, is effectively reduced the debugging time, thus improves described the N+1 liquid crystal
The gamma curve debugging efficiency of display device.
Further, can be learnt by lot of experiments, when described N is more than or equal to 200, by described N number of gray scale voltage
The described average gray scale voltage accuracy calculated is high, it is possible to the display panels of greater proportion be applicable to same batch, and
Apply the whole liquid crystal indicators debugging complete total time used with batch liquid crystal mesogens display floater the shortest.
Same, described gamma curve adjustment method will repeat step S300 and step S400, same in order to debug employing
Other liquid crystal indicators (such as the N+2 liquid crystal indicator, the N+3 liquid crystal display dress of batch display panels
Put), thus reduce the debugging time, improve the gamma curve debugging using the liquid crystal indicator with batch display panels
Efficiency.
It should be understood that the recordable time in step S300 is about 200ms, the time is the shortest, can't cause gamma curve
The obvious reduction of debugging efficiency.
Further, refer to Fig. 2 and Fig. 3, as a kind of preferred implementation, described " to first liquid crystal display dress
Put to n-th liquid crystal indicator and carry out gamma curve debugging (i.e. step S100) " including:
S101: debugging apparatus 10 provides initial gray scale voltage to ignition device 20；
S102: described ignition device 20 lights the liquid of described first liquid crystal indicator according to described initial gray scale voltage
LCD panel；
S103: luminance detection device 30 gathers the brightness of the display panels of described first liquid crystal indicator；
According to described brightness, S104: described debugging apparatus 10 judges that the gamma curve of described first liquid crystal indicator is
It is no qualified: if it is not, the driving chip of described first liquid crystal indicator is entered in gray scale voltage burning after then forming debugging；If
It is, the most directly by (bypass)；And
S105: repeat step S101～step S104, in order to debug second liquid crystal indicator to n-th liquid crystal display
Device.
Wherein, as in figure 2 it is shown, embodiment of the present invention also provides for a kind of gamma curve commissioning device 100, described device bag
Include debugging apparatus 10 described above, described ignition device 20 and described luminance detection device 30.Described debugging apparatus 10 is electrically connected
Connect described ignition device 20 and described luminance detection device 30, give described ignition device 20 in order to output voltage signal and receive institute
State the signal that luminance detection device 30 sends；Described ignition device 20 is in order to light the liquid crystal of liquid crystal indicator to be debugged
Show panel 40；Described luminance detection device 30 is in order to gather the brightness of described display panels 40.
Further, refer to Fig. 2 and Fig. 4, as a kind of preferred implementation, described " to described the N+1 liquid crystal
Showing device carries out debugging (i.e. step S400) " including:
S401: debugging apparatus 10 provides described average gray scale voltage to ignition device 20；
S402: described ignition device 20 lights described N+1 liquid crystal indicator according to described initial gray scale voltage
Display panels；
S403: luminance detection device 30 gathers the brightness of the display panels of described N+1 liquid crystal indicator；With
And
S404: described debugging apparatus 10 judges the gamma curve of described N+1 liquid crystal indicator according to described brightness
The most qualified: the most directly by (bypass)；If it is not, described N+1 is entered in gray scale voltage burning after then forming debugging
The driving chip of individual liquid crystal indicator.
In the present embodiment, owing to described average gray scale voltage is applicable to most of display panels of same batch,
The most in step s 404, direct passing ratio is bigger.
Further, refer to Fig. 5, as a kind of optional embodiment, described " to first liquid crystal indicator to
N number of liquid crystal indicator carries out gamma curve debugging (i.e. step S100) " including:
S110: described first liquid crystal indicator is debugged, and the gray scale voltage burning after debugging is entered described
The driving chip of first liquid crystal indicator；
S120: described first liquid crystal indicator is carried out brightness check and correction；
S130: if qualified, then debugging is passed through；If defective, the most again debug described first liquid crystal indicator or
Check debugging equipment.
In the present embodiment, owing to described gamma curve adjustment method is additionally arranged brightness check and correction step (step S120),
Therefore the debugging abnormal problem (such as write value is inaccurate) owing to the problem such as tool or burning is caused can be avoided, from
And the yields of product after ensureing debugging.
Further, see also Fig. 2 and Fig. 6, as a kind of optional embodiment, described " to described first liquid
Crystal device carries out brightness check and correction (i.e. step S120) " including:
S121: by the brightness corresponding to 0 GTG of described first liquid crystal indicator during debugging with correspond to
The brightness of 255 GTGs, 1 GTG calculating described first liquid crystal indicator is bright to the multiple theories corresponding to 254 GTGs
Degree scope；
S122: ignition device 20 lights the liquid of described first liquid crystal indicator according to the gray scale voltage after described debugging
LCD panel；
The check and correction of the display panels that S123: luminance detection device 30 gathers described first liquid crystal indicator is bright
Degree, including 1 GTG to the multiple check and correction brightness corresponding to 254 GTGs；
S124: described debugging apparatus 10 judges that the plurality of check and correction brightness falls into the plurality of theory the most correspondingly
In brightness range.
Preferably, the theoretical brightness range of the M GTG of described first liquid crystal indicator is:
Wherein, M is the integer more than or equal to 1 and less than or equal to 254, and L255 is the described brightness corresponding to 255 GTGs, L0
For the described brightness corresponding to 0 GTG, γ is the ideal gamma value of described first liquid crystal indicator, preferably 2.2.
Above embodiment of the present invention is described in detail, the specific case principle to the present invention used herein
And embodiment is set forth, the explanation of embodiment of above is only intended to help to understand that the method for the present invention and core thereof are thought
Think；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, in specific embodiments and applications
All will change, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a gamma curve adjustment method, it is characterised in that including:
First liquid crystal indicator to n-th liquid crystal indicator is carried out gamma curve debugging, and is burnt after recording debugging
N number of gray scale voltage of record, N is the integer more than or equal to 2；
Calculate the average gray scale voltage of described N number of gray scale voltage；
The N+1 liquid crystal indicator is entered in described average gray scale voltage burning；And
Described the N+1 liquid crystal indicator is carried out gamma curve debugging.
2. gamma curve adjustment method as claimed in claim 1, it is characterised in that described " to first liquid crystal indicator
Gamma curve debugging is carried out to n-th liquid crystal indicator " including:
Debugging apparatus provides initial gray scale voltage to ignition device；
Described ignition device lights the display panels of described first liquid crystal indicator according to described initial gray scale voltage；
Luminance detection device gathers the brightness of the display panels of described first liquid crystal indicator；And
According to described brightness, described debugging apparatus judges that the gamma curve of described first liquid crystal indicator is the most qualified, if
No, then the driving chip of described first liquid crystal indicator is entered in gray scale voltage burning after forming debugging.
3. gamma curve adjustment method as claimed in claim 2, it is characterised in that described " to first liquid crystal indicator
Gamma curve debugging is carried out to n-th liquid crystal indicator " also include:
If the gamma curve of described first liquid crystal indicator is qualified, the most directly pass through.
4. gamma curve adjustment method as claimed in claim 1, it is characterised in that described " to described the N+1 liquid crystal display
Device carries out gamma curve debugging " including:
Debugging apparatus provides described average gray scale voltage to ignition device；
Described ignition device lights the LCD of described N+1 liquid crystal indicator according to described initial gray scale voltage
Plate；
Luminance detection device gathers the brightness of the display panels of described N+1 liquid crystal indicator；And
According to described brightness, described debugging apparatus judges that the gamma curve of described N+1 liquid crystal indicator is the most qualified, if
It is the most directly to pass through.
5. gamma curve adjustment method as claimed in claim 4, it is characterised in that described " to described the N+1 liquid crystal display
Device is debugged " also include:
If the gamma curve of described N+1 liquid crystal indicator is defective, then gray scale voltage burning after forming debugging are entered
The driving chip of described N+1 liquid crystal indicator.
6. gamma curve adjustment method as claimed in claim 1, it is characterised in that described N is more than or equal to 200.
7. the gamma curve adjustment method as described in any one of claim 1～6, it is characterised in that described " to first liquid crystal
Display device carries out gamma curve debugging to n-th liquid crystal indicator " including:
Described first liquid crystal indicator is debugged, and described first liquid crystal is entered in the gray scale voltage burning after debugging
The driving chip of display device；
Described first liquid crystal indicator is carried out brightness check and correction；And
If defective, the most again debug described first liquid crystal indicator or check debugging equipment.
8. gamma curve adjustment method as claimed in claim 7, it is characterised in that described " to described first liquid crystal display
Device carries out brightness check and correction " including:
By during debugging described first liquid crystal indicator the brightness corresponding to 0 GTG and corresponding to 255 GTGs
Brightness, calculates 1 GTG of described first liquid crystal indicator to the multiple theoretical brightness range corresponding to 254 GTGs；
Ignition device lights the display panels of described first liquid crystal indicator according to the gray scale voltage after described debugging；
Luminance detection device gathers the check and correction brightness of the display panels of described first liquid crystal indicator, including 1 GTG
To the multiple check and correction brightness corresponding to 254 GTGs；And
Described debugging apparatus judges that the plurality of check and correction brightness falls in the plurality of theoretical brightness range the most correspondingly.
9. gamma curve adjustment method as claimed in claim 8, it is characterised in that the M ash of described first liquid crystal indicator
The theoretical brightness range on rank is:
Wherein, M is the integer more than or equal to 1 and less than or equal to 254, and L255 is the described brightness corresponding to 255 GTGs, and L0 is institute
Stating the brightness corresponding to 0 GTG, γ is the ideal gamma value of described first liquid crystal indicator.
10. gamma curve adjustment method as claimed in claim 7, it is characterised in that if described first liquid crystal indicator
Carry out brightness check and correction qualified, then debugging is passed through.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610719942.4A CN106128383B (en) | 2016-08-25 | 2016-08-25 | Gamma curve adjustment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610719942.4A CN106128383B (en) | 2016-08-25 | 2016-08-25 | Gamma curve adjustment method |
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| CN106128383A true CN106128383A (en) | 2016-11-16 |
| CN106128383B CN106128383B (en) | 2019-06-25 |
Family
ID=57273758
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| CN201610719942.4A Active CN106128383B (en) | 2016-08-25 | 2016-08-25 | Gamma curve adjustment method |
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| CN108550345A (en) * | 2018-07-12 | 2018-09-18 | 成都京东方光电科技有限公司 | Gamma correction method and device, display device, computer storage media |
| CN109559701A (en) * | 2018-12-29 | 2019-04-02 | 惠科股份有限公司 | Display panel and its method of adjustment |
| CN110767138A (en) * | 2019-01-31 | 2020-02-07 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
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| CN110767138A (en) * | 2019-01-31 | 2020-02-07 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| WO2020155583A1 (en) * | 2019-01-31 | 2020-08-06 | 昆山国显光电有限公司 | Gamma adjustment method and apparatus for display panel |
| CN110767138B (en) * | 2019-01-31 | 2020-12-04 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| US11158247B2 (en) | 2019-01-31 | 2021-10-26 | Kunshan Go-Visionox Opto-Electronics Co., Ltd. | Gamma adjustment method and adjustment device for display panel |
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| Publication number | Publication date |
|---|---|
| CN106128383B (en) | 2019-06-25 |
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