CN103413513A - Adjustment method and device of display module driving voltage - Google Patents

Adjustment method and device of display module driving voltage Download PDF

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Publication number
CN103413513A
CN103413513A CN2013103082403A CN201310308240A CN103413513A CN 103413513 A CN103413513 A CN 103413513A CN 2013103082403 A CN2013103082403 A CN 2013103082403A CN 201310308240 A CN201310308240 A CN 201310308240A CN 103413513 A CN103413513 A CN 103413513A
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China
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gtg
driving voltage
transmitance
standard
adjustable
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CN2013103082403A
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CN103413513B (en
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王壮
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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Beijing BOE Optoelectronics Technology Co Ltd
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Priority to CN201310308240.3A priority Critical patent/CN103413513B/en
Priority to PCT/CN2013/085946 priority patent/WO2015010378A1/en
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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
    • 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
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The embodiment of the invention provides an adjustment method and adjustment device of display module driving voltage to be used for improving adjustment precision of the driving voltage, reducing debugging workload and improving working efficiency. The method comprises the steps that luminance data, corresponding to an adjustable gray scale under the action of test driving voltage, of the driving circuit in a display module are collected, and according to the luminance data, and an actual relation curve of the adjustable gray scale and transmittance is determined; the actual relation curve of the adjustable gray scale and the transmittance is compared with a standard relation curve of a standard gray scale and transmittance, and the difference between the two kinds of transmittance is determined; the driving voltage of the driving circuit is adjusted according to the difference, the difference of the two kinds of transmittance of the actual relation curve and the standard relation curve meets a set requirement, and the adjusted driving voltage of the display module is determined.

Description

A kind of method of adjustment and device that shows the module driving voltage
Technical field
The present invention relates to the display technique field, relate in particular to a kind of method of adjustment and adjusting gear that shows the driving voltage of module.
Background technology
For display, the drive voltage signal of input will produce brightness output on screen, but the brightness shown on screen is not directly proportional to the drive voltage signal of input.Mutual relationship between the driving voltage of inputting in display (V) and its transmissivity (T) is called the V-T relation curve.The display unit of display is box, so in fact the V-T relation curve has reacted electricity one response characteristics to light of box.During people's eyes observation display, the variation of brightness size can correspondingly cause the variation of human eye achromatic sensation, and when brightness improved constantly, the light and shade variation of human eye can constantly be tending towards saturated.
Generally speaking, because the contrast (contrast ratio) of display panel is to depend on maximum standard GTG value 255 and minimum sandards GTG value 0, standard gray scale voltage VG0-VG255 is obtained by the interior series resistor dividing potential drop of source electrode driver (source driver).Yet standard gray scale voltage VG0-VG255 tends to produce divorced because of the change of the factors such as processing procedure and display panel characteristic, and then cause display panel the phenomenon of discontinuous grey menu to occur.In prior art, a fixing driving circuit can only produce one group of fixing magnitude of voltage, this just need to develop special driving voltage or the divider resistance complemented one another with these display panels of debugging out, but be in certain error by what current method and measurement mechanism were found out, general different requirements according to the client, actual gamma (Gamma) value of display can allow to have on the basis of target Gamma ± 0.1 or ± 0.2 error range, and debug process is more loaded down with trivial details.
Summary of the invention
The embodiment of the present invention provides a kind of method of adjustment and adjusting gear that shows the driving voltage of module, in order to improve the adjustment degree of accuracy of driving voltage, and can reduce the workload of debugging, increases work efficiency.
The embodiment of the present invention provides a kind of method of adjustment that shows the driving voltage of module, and described method comprises:
Gather and show the adjustable GTG corresponding brightness data of driving circuit under the effect of test driving voltage in module, and according to described brightness data, determine the actual relationship curve of adjustable GTG and transmitance; The standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance; According to the difference of described transmitance, the test driving voltage of driving circuit is adjusted, made the difference of the transmitance between described actual relationship curve and standard relationship curve meet the setting requirement, and determine the driving voltage after the adjustment that shows module.Above-mentioned method of adjustment compares by the standard relationship curve of the actual relationship curve by driving voltage and transmitance and standard GTG and transmitance, can more accurately effectively to the test driving voltage in debug process, adjust, obtain the driving voltage shown after module is adjusted; Simultaneously, the software and hardware that described method can complete dependence is realized, has realized the intellectuality that driving voltage is adjusted, and has reduced the workload of debugging, increase work efficiency, and the interference of having avoided human factor to cause.
Preferably, described method also comprises: according to the driving voltage after described adjustment, determine the corresponding divider resistance resistance of driving voltage after described adjustment, according to the ratio between these divider resistance resistances, can obtain showing in module driving circuit design, obtain the needed optimal resistance resistance of driving voltage after this adjustment.
Preferably, described method also comprises: for the driving voltage to be measured of definite test driving voltage and the relation curve of standard GTG, obtain the test driving voltage corresponding to adjustable GTG of driving circuit in definite demonstration module; To showing that module provides the test driving voltage corresponding to adjustable GTG of driving circuit.The test driving voltage of each described adjustable GTG, all be in the voltage range of this adjustable GTG when meeting the target Gamma value, makes and show that module can work.
Preferably, the relation curve of driving voltage to be measured and standard GTG in definite demonstration module specifically comprises: gather the corresponding brightness data of picture in a plurality of demonstration modules under different driving voltage, determine the relation curves of organizing driving voltage to be measured and transmitance more; According to the relation of standard GTG and transmitance, obtain the standard relationship curve of standard GTG and transmitance; The relation curve of each described driving voltage to be measured and transmitance and the standard relationship curve of described standard GTG and transmitance are carried out to match, obtain the relation curve of many groups driving voltage to be measured and standard GTG.From in the relation curve of driving voltage to be measured and standard GTG described definite demonstration module, can obtain the voltage range of each standard GTG needed test driving voltage when meeting the target Gamma value.
Preferably, described test driving voltage corresponding to adjustable GTG that obtains driving circuit, specifically comprise: according to the relation curves of described many groups driving voltage to be measured and standard GTG, the voltage range of the test driving voltage when each adjustable GTG of group more than obtaining meet the target Gamma value; According to the voltage ranges of the test driving voltage of described many each adjustable GTGs of group, obtain meeting simultaneously the test driving voltage of the adjustable GTG of described a plurality of demonstration modules.By the test driving voltage that this step obtains, can meet the needs of above-mentioned a plurality of demonstration module normal operations.
The standard relationship curve of described standard GTG and transmitance meets:
T=(L/M) G
Wherein, G is the target gamma value, and T is transmissivity, and L is the standard GTG, and M is the maximal value of standard GTG L.The standard relationship curve of described standard GTG and transmitance, for the aim curve of the actual relationship curve as adjustable GTG and transmitance.
The embodiment of the present invention provides a kind of adjusting gear that shows the driving voltage of module, and described device comprises:
Acquisition module, for gathering, show the adjustable GTG corresponding brightness data of module driving circuit under the effect of test driving voltage, and the brightness data that will collect is sent to the calculation process module;
The calculation process module, be used to receiving the brightness data of acquisition module transmission, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data; And the standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance, and the comparative result that will comprise the difference of described transmitance sends to adjusting module;
Adjusting module, for receiving described comparative result, according to the difference of described transmitance, the test driving voltage is adjusted, made the difference of the transmitance between described actual relationship curve and standard relationship curve meet the setting requirement, and determine the driving voltage shown after module is adjusted.
Preferably, described adjusting module, also for the driving voltage according to after described adjustment, determine the corresponding divider resistance resistance of driving voltage after this adjustment, according to the ratio between these divider resistance resistances, can obtain showing in module driving circuit design, obtain the needed optimal resistance resistance of driving voltage after this adjustment.
Preferably, described calculation process module, also show that for determining module, for the driving voltage to be measured of definite test driving voltage and the relation curve of standard GTG, obtains the test driving voltage corresponding to adjustable GTG of driving circuit; And to showing that module provides the test driving voltage corresponding to adjustable GTG of driving circuit.
Preferably, the relation curve of described definite test driving voltage and standard GTG specifically comprises: gather the corresponding brightness data of picture in a plurality of demonstration modules under different driving voltages to be measured, determine the relation curve of many groups driving voltage to be measured and transmitance; According to the relation of standard GTG and transmitance, obtain the standard relationship curve of standard GTG and transmitance; The typical curve of the relation curve of each described driving voltage to be measured and transmitance and described standard GTG and transmitance is carried out to match, obtain the relation curve of many groups driving voltage to be measured and standard GTG.From in the relation curve of driving voltage to be measured and standard GTG described definite demonstration module, can obtain the voltage range of each standard GTG needed test driving voltage when meeting the target Gamma value.
Preferably, described test driving voltage corresponding to adjustable GTG that obtains driving circuit, specifically comprise: according to the relation curves of described many groups driving voltage to be measured and standard GTG, the voltage range of the test driving voltage when each adjustable GTG of group more than obtaining meet the target Gamma value; According to the voltage ranges of the test driving voltage of described many each adjustable GTGs of group, obtain meeting simultaneously the test driving voltage of the adjustable GTG of described a plurality of demonstration modules.Described test driving voltage can meet the needs of above-mentioned a plurality of demonstration module normal operations.
The standard relationship curve of described standard GTG and transmitance meets:
T=(L/M) G
Wherein, G is the target gamma value, and T is transmissivity, and L is the standard GTG, and M is the maximal value of standard GTG L.The standard relationship curve of described standard GTG and transmitance, for the aim curve of the actual relationship curve as adjustable GTG and transmitance.
The accompanying drawing explanation
The schematic flow sheet of the method for adjustment of driving voltage in the demonstration module that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the relation curve schematic diagram of driving voltage and transmitance in the demonstration module;
Fig. 3 is the standard relationship curve synoptic diagram of standard GTG and transmitance;
Fig. 4 is the method schematic diagram that obtains the driving voltage that shows module;
The structural representation of the adjusting gear of the driving voltage of the demonstration module that Fig. 5 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method of adjustment and adjusting gear that shows the driving voltage of module, in order to improve the adjustment degree of accuracy of driving voltage, and can reduce the workload of debugging, increases work efficiency.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The embodiment of the present invention one provides a kind of method of adjustment that shows the driving voltage of module, and described method comprises:
Gather and show the adjustable GTG corresponding brightness data of driving circuit under the effect of test driving voltage in module, and according to described brightness data, determine the actual relationship curve of adjustable GTG and transmitance;
The standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance;
According to the difference of described transmitance, the driving voltage of driving circuit is adjusted, made the difference of the transmitance between described actual relationship curve and standard relationship curve meet the setting requirement, and determine the driving voltage after the adjustment that shows module.
Referring to Fig. 1, in the process of implementing, described method of adjustment specifically comprises:
Step 101, referring to Fig. 2, by surveying instrument to a plurality of demonstration modules, providing a series of driving voltage to be measured respectively, and gather the brightness data of the picture of each described demonstration module under difference driving voltage to be measured, according to described brightness data, obtain each driving voltage to be measured that shows module and the relation curve of transmitance, it is V-T curve, wherein, V means driving voltage, and T means transmitance; Described to showing that in a series of driving voltage that module provides, minimum value is 0v, then the amplitude with 0.1v progressively increases, until the transmitance of described demonstration module reaches 100%.
As can be seen from Figure 2, the transmitance of described demonstration module within the specific limits, increases along with the progressively increase of driving voltage to be measured.
Be pointed out that, described demonstration module can be the liquid crystal display mode group, can also be other the demonstration module such as Organic Light Emitting Diode OLED, plasma PDP or CRT.
Step 102, referring to Fig. 3, according to the relation between standard GTG and transmitance, obtain the standard relationship curve of standard GTG L and transmitance, i.e. L-T typical curve; Wherein, L means the standard GTG, and its span is 0-255; As can be seen from Figure 3, the corresponding transmitance of same standard GTG reduces along with the increase gradually of target Gamma value.
The standard relationship curve of described standard GTG and transmitance meets:
T=(L/M) G
Wherein, G is the target gamma value, and T is transmissivity, and L is the standard GTG, and M is the maximal value of standard GTG L.
Step 103, according to each that obtain in step 101, show the standard GTG L that obtains in the relation curve of the driving voltage to be measured of module and transmitance and step 102 and the standard relationship curve of transmitance, simulate driving voltage to be measured and the relation curve of standard GTG, i.e. V-L curve that each shows module;
According to above-mentioned each show the V of module-L curve, obtain the span of the test driving voltage of each adjustable GTG in this demonstration module, described standard GTG, represented by the most secretly to the stratum level of different brightness the brightest, intermediate level is more, the picture effect that can present is also just finer and smoother, minimum sandards GTG value is, maximum standard GTG value is, therefore we are referred to as 256 standard GTGs, and show module for one, in its driving circuit, can not get whole standard GTGs, can only get a part wherein, we are called adjustable GTG by the described part of standards GTG that can get, for example, the driving circuit in this demonstration module can only get 0, 4, 8, 16, 52, 76, 100, 131, 152, 176, 203, 225, 239, 247, 251, the part of standards GTGs such as 255, so we will get part of standards GTG 0, 4, 8, 16, 52, 76, 100, 131, 152, 176, 203, 225, 239, 247, 251, 255 are called the adjustable GTG of this demonstration module, then the rule reduced gradually along with the increase of target Gamma value according to the corresponding transmitance of each standard GTG, and the rule that increases along with progressively increasing of driving voltage to be measured within the specific limits of transmittance, can obtain each adjustable GTG and meet the target Gamma value (with target Gamma value value 2.2, its error is ± 0.2 for example) time voltage range, for example the voltage ranges that meet of adjustable GTG 76 are [V76 2.4, V76 2.0].
For described a plurality of demonstration modules, can obtain the voltage range of many groups test driving voltage corresponding with adjustable GTG 76, concrete: first shows that in module, the corresponding voltage range of adjustable GTG 76 is: S1[U 1, U 2], second shows that in module, the corresponding voltage range of adjustable GTG 76 is: S2[U 3, U 4] ..., n shows that in module, the corresponding voltage range of adjustable GTG 76 is: Sn[U 2n-1, U 2n], described many groups voltage range corresponding with adjustable GTG 76 sought common ground, as shown in Figure 4, obtain one group of voltage range S that can meet simultaneously described a plurality of demonstration modules, and from described S, getting an intermediate value, as the test driving voltage of adjustable GTG 76 in described a plurality of demonstration modules;
According to above-mentioned steps, can obtain equally the corresponding test driving voltage of other adjustable GTG.
Step 104, by test voltage corresponding to each adjustable GTG in the voltage regulator output driving circuit, then by the collection of luminance test instrument, show the brightness data of the picture of module under this test driving voltage, and according to described brightness data, determine the actual relationship curve of adjustable GTG and transmitance.
Step 105, the standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and described standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance.
Step 106, according to difference and the predefined voltage adjusting method control voltage regulator of described transmitance, the test driving voltage voltage of output is adjusted, then repeat adjustable GTG and transmitance the actual relationship curve collection and compare, until meeting, the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance sets requirement, for example, the standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is identical.
Step 107, after completing steps 106, obtain the driving voltage after the adjustment that shows module; Or/and, by voltage regulator internal resistance voltage divider principle, calculate the corresponding divider resistance resistance of driving voltage after described adjustment, by these resistance ratios, can obtain the optimum resistance value that shows that module driving circuit design is wanted.
Be pointed out that, in the method that the embodiment of the present invention provides, can by described step 101, described step 102 and described step 103, not obtain the test driving voltage of adjustable GTG in described a plurality of demonstration module, the developer can, according to its product design experience for described a plurality of demonstration modules provide one group of test driving voltage, then realize the adjustment of the driving voltage of demonstration module by subsequent step.
The embodiment of the present invention two provides a kind of adjusting gear that shows the driving voltage of module, its structure as shown in Figure 5, as can be seen from Figure 5, the adjusting gear of the driving voltage of described demonstration module comprises: acquisition module 501, calculation process module 502 and adjusting module 503, concrete:
Described acquisition module 501, for gathering, show the adjustable GTG corresponding brightness data of module driving circuit under the effect of test driving voltage, and the brightness data that will collect is sent to calculation process module 502;
Described calculation process module 502, be used to receiving the brightness data of acquisition module 501 transmissions, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data; And the standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance, and the comparative result that will comprise the difference of described transmitance sends to adjusting module 503; The standard relationship curve of described standard GTG and transmitance meets:
T=(L/M) G
Wherein, G is the target gamma value, and T is transmissivity, and L is the standard GTG, and M is the maximal value of standard GTG L.
Adjusting module 503, for receiving described comparative result, and according to the difference of the transmitance in described result, the test driving voltage is adjusted, make the difference of the transmitance between described actual relationship curve and standard relationship curve meet the setting requirement, and determine the driving voltage shown after module is adjusted.
Described adjusting module 503, also for the corresponding divider resistance resistance of driving voltage after definite described adjustment.
Wherein, described acquisition module 501, described calculation process module 502 and adjusting module 503, also for determining the process of the test driving voltage that shows module, concrete:
Described acquisition module 501, by surveying instrument when to a plurality of demonstration modules, providing a series of driving voltage to be measured respectively, gather the brightness data of the picture of each described demonstration module under difference driving voltage to be measured, and send to described calculation process module 502.Described to showing that in the driving voltage a series of to be measured that module provides, minimum value is 0v, then the amplitude with 0.1v progressively increases, until make the transmitance of described demonstration module reach 100%.
Described calculation process module 502, according to described brightness data, determine the relation curve that each shows driving voltage to be measured and transmitance in module, as shown in Figure 2; The typical curve of the relation curve of described driving voltage to be measured and transmitance and standard GTG and transmitance is carried out to match, obtain the relation curve that each shows driving voltage to be measured and standard GTG in module, as shown in Figure 3; As can be seen from Figure 2, show the transmittance of module within the specific limits, increase along with the progressively increase of driving voltage to be measured; As can be seen from Figure 3, the corresponding transmitance of same adjustable GTG reduces along with the increase gradually of target Gamma value.
According to above-mentioned each show the V of module-L curve, obtain the voltage range of the test driving voltage of each adjustable GTG in this demonstration module, for example, for showing module, the adjustable GTG of this demonstration module is respectively 0, 4, 8, 16, 52, 76, 100, 131, 152, 176, 203, 225, 239, 247, 251, 255, the rule reduced gradually along with the increase of target Gamma value according to transmitance, and the rule that increases along with progressively increasing of driving voltage within the specific limits of transmittance, can obtain each adjustable GTG and meet the target Gamma value (with target Gamma value value 2.2, its error is ± 0.2 for example) time voltage range, for example adjustable GTG 76 satisfied voltage ranges are [V76 2.4, V76 2.0],
For described a plurality of demonstration modules, can obtain many groups voltage range corresponding with adjustable GTG 76,503 pairs of described many groups voltage ranges corresponding with adjustable GTG 76 of described adjusting module seek common ground, obtain one group of voltage range that can meet simultaneously described a plurality of demonstration modules, and from the described voltage range that can meet simultaneously described a plurality of demonstration modules, getting an intermediate value, as the test driving voltage of adjustable GTG 76 in described a plurality of demonstration modules; In like manner, can obtain the corresponding test driving voltage of other adjustable GTG;
Described operating and processing module 502, also for providing the test driving voltage corresponding to each adjustable GTG of driving circuit to the demonstration module.
To sum up, in the method for adjustment of the driving voltage of the demonstration module that the embodiment of the present invention provides, by testing driving voltage and the actual relationship curve of transmitance and the standard relationship curve of standard GTG and transmitance, compare, as the method for adjusting driving voltage, can more accurately effectively to the test driving voltage in debug process, adjust; And the method combines driving voltage with the standard GTG with the actual relationship curve of transmitance with the standard relationship curve of transmitance, show the test driving voltage of the adjustable GTG of module when meeting the target Gamma value for determining; In addition, described mediation process can utilize the program set in advance to complete, and has realized the intellectuality of adjustment process, has reduced the workload of debugging, increases work efficiency, and has also reduced simultaneously the interference of artifact.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.

Claims (12)

1. a method of adjustment that shows the driving voltage of module, is characterized in that, described method comprises:
Gather and show the adjustable GTG corresponding brightness data of driving circuit under the effect of test driving voltage in module, and according to described brightness data, determine the actual relationship curve of adjustable GTG and transmitance;
The standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance;
According to the difference of described transmitance, the test driving voltage of driving circuit is adjusted, made the difference of the transmitance between described actual relationship curve and standard relationship curve meet the setting requirement, and determine the driving voltage after the adjustment that shows module.
2. method as claimed in claim 1, is characterized in that, described method also comprises: according to the driving voltage after described adjustment, determine the corresponding divider resistance resistance of driving voltage after described adjustment.
3. method as claimed in claim 1, is characterized in that, described method also comprises:
In definite demonstration module, for the driving voltage to be measured of definite test driving voltage and the relation curve of standard GTG, obtain the test driving voltage corresponding to adjustable GTG of driving circuit;
To showing that module provides the test driving voltage corresponding to adjustable GTG of driving circuit.
4. method as claimed in claim 3, is characterized in that, determines the relation curve that shows driving voltage to be measured and standard GTG in module, specifically comprises:
Gather the corresponding brightness data of picture in a plurality of demonstration modules under different driving voltages to be measured, determine the relation curve of many groups driving voltage to be measured and transmitance;
According to the relation of standard GTG and transmitance, obtain the standard relationship curve of standard GTG and transmitance;
The relation curve of each described driving voltage to be measured and transmitance and the standard relationship curve of described standard GTG and transmitance are carried out to match, obtain the relation curve of many groups driving voltage to be measured and standard GTG.
5. method as claimed in claim 3, is characterized in that, described test driving voltage corresponding to adjustable GTG that obtains driving circuit specifically comprises:
According to the relation curves of described many groups driving voltage to be measured and standard GTG, the voltage range of the test driving voltage when each adjustable GTG of group more than obtaining meet the target gamma value;
According to the voltage ranges of the test driving voltage of described many each adjustable GTGs of group, obtain meeting simultaneously the test driving voltage of the adjustable GTG of described a plurality of demonstration modules.
6. method as claimed in claim 4, is characterized in that, the standard relationship curve of described standard GTG and transmitance meets:
T=(L/M) G
Wherein, G is the target gamma value, and T is transmissivity, and L is the standard GTG, and M is the maximal value of standard GTG L.
7. an adjusting gear that shows the driving voltage of module, is characterized in that, described device comprises:
Acquisition module, for gathering, show the adjustable GTG corresponding brightness data of module driving circuit under the effect of test driving voltage, and the brightness data that will collect is sent to the calculation process module;
The calculation process module, be used to receiving the brightness data of acquisition module transmission, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data; And the standard relationship curve of the actual relationship curve of described adjustable GTG and transmitance and standard GTG and transmitance is compared, determine the difference of the transmitance between the standard relationship curve of the actual relationship curve of adjustable GTG and transmitance and standard GTG and transmitance, and the comparative result that will comprise the difference of described transmitance sends to adjusting module;
Adjusting module, for receiving described comparative result, according to the difference of described transmitance, the test driving voltage is adjusted, made the difference of the transmitance between described actual relationship curve and standard relationship curve meet the setting requirement, and determine the driving voltage shown after module is adjusted.
8. device as claimed in claim 7, is characterized in that described adjusting module, also for the driving voltage according to after described adjustment, is determined the corresponding divider resistance resistance of driving voltage after this adjustment.
9. install as claimed in claim 7, it is characterized in that, described calculation process module, also show that for determining module, for the driving voltage to be measured of definite test driving voltage and the relation curve of standard GTG, obtains the test driving voltage corresponding to adjustable GTG of driving circuit; And to showing that module provides the test driving voltage corresponding to adjustable GTG of driving circuit.
10. install as claimed in claim 9, it is characterized in that, determine the relation curve of driving voltage to be measured and standard GTG, specifically comprise:
Gather the corresponding brightness data of picture in a plurality of demonstration modules under different driving voltages to be measured, determine the relation curve of many groups driving voltage to be measured and transmitance;
According to the relation of standard GTG and transmitance, obtain the standard relationship curve of standard GTG and transmitance;
The typical curve of the relation curve of each described driving voltage to be measured and transmitance and described standard GTG and transmitance is carried out to match, obtain the relation curve of many groups driving voltage to be measured and standard GTG.
11. device, is characterized in that as claimed in claim 9, described test driving voltage corresponding to adjustable GTG that obtains driving circuit specifically comprises:
According to the relation curves of described many groups driving voltage to be measured and standard GTG, the voltage range of the test driving voltage when each adjustable GTG of group more than obtaining meet the target gamma value;
According to the voltage ranges of the test driving voltage of described many each adjustable GTGs of group, obtain meeting simultaneously the test driving voltage of the adjustable GTG of described a plurality of demonstration modules.
12. device, is characterized in that as claimed in claim 10, the relationship by objective (RBO) curve of described standard GTG and transmitance meets:
T=(L/M) G
Wherein, G is the target gamma value, and T is transmissivity, and L is the standard GTG, and M is the maximal value of standard GTG L.
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