CN103413513B - A kind of method of adjustment and device showing module driving voltage - Google Patents
A kind of method of adjustment and device showing module driving voltage Download PDFInfo
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- CN103413513B CN103413513B CN201310308240.3A CN201310308240A CN103413513B CN 103413513 B CN103413513 B CN 103413513B CN 201310308240 A CN201310308240 A CN 201310308240A CN 103413513 B CN103413513 B CN 103413513B
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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
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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
- 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
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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
- 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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- 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)
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Embodiments provide a kind of method of adjustment and the adjusting gear that show the driving voltage of module, in order to improve the adjustment degree of accuracy of driving voltage, reduce the workload of debugging, increase work efficiency.Described method comprises: gather the brightness data adjustable GTG corresponding to of driving circuit under the effect of Test driver voltage in display module, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data; Described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determines the difference of transmitance between the two; Adjust according to the driving voltage of described difference to driving circuit, the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determine the driving voltage after the adjustment of display module.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of method of adjustment and the adjusting gear that show the driving voltage of module.
Background technology
For display, the drive voltage signal of input will produce brightness and export on screen, but the brightness that screen shows is not directly proportional to the drive voltage signal of input.Mutual relationship between the driving voltage (V) inputted in display and its transmissivity (T) is called V-T relation curve.The display unit of display is box, and therefore in fact V-T relation curve has reacted electricity one response characteristics to light of box.During the eye observation display of people, the change of brightness size correspondingly can cause the change of human eye achromatic sensation, and when brightness improves constantly, the light and shade change of human eye can constantly be tending towards saturated.
Generally speaking, contrast (contrastratio) due to display panel depends on maximum standard gray scale value 255 and minimum sandards grey decision-making 0, and standard gray scale voltage VG0-VG255 is then obtained by the series resistor dividing potential drop in source electrode driver (sourcedriver).But standard gray scale voltage VG0-VG255 often produces divorced because of the change of the factors such as processing procedure and display panel characteristic, and then causes display panel to occur the phenomenon of discontinuous grey menu.In prior art, fixing driving circuit can only produce one group of fixing magnitude of voltage, this just needs to develop the driving voltage or divider resistance debugging out specially and complement one another with these display panels, but that is found out by current method and measurement mechanism is in certain error, generally according to the different requirements of client, actual gamma (Gamma) value of display can allow to have on the basis of target Gamma ± error range of 0.1 or ± 0.2, and debug process is more loaded down with trivial details.
Summary of the invention
Embodiments provide a kind of method of adjustment and the adjusting gear that show the driving voltage of module, in order to improve the adjustment degree of accuracy of driving voltage, and the workload of debugging can be reduced, increase work efficiency.
Embodiments provide a kind of method of adjustment showing the driving voltage of module, described method comprises:
Gather the brightness data adjustable GTG corresponding to of driving circuit under the effect of Test driver voltage in display module, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data; Described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determines the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance; The Test driver voltage of difference to driving circuit according to described transmitance adjusts, and the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determine the driving voltage after the adjustment of display module.Above-mentioned method of adjustment is by comparing the actual relationship curve of driving voltage and transmitance and the standard relationship curve of standard gray scale and transmitance, more accurately effective Test driver voltage in debug process can be adjusted, obtain the driving voltage after the adjustment of display module; Meanwhile, the software and hardware that described method can be correlated with completely realizes, and achieves the intellectuality of driving voltage adjustment, decreases the workload of debugging, increase work efficiency, avoid the interference that human factor causes.
Preferably, described method also comprises: according to the driving voltage after described adjustment, determine the divider resistance resistance corresponding to the driving voltage after described adjustment, according to the ratio between these divider resistance resistances, can obtain, in the design of display module driving circuit, the optimal resistance resistance required for the driving voltage after this adjustment being obtained.
Preferably, described method also comprises: determine to show the relation curve for the driving voltage to be measured and standard gray scale of determining Test driver voltage in module, obtain the Test driver voltage that the adjustable GTG of driving circuit is corresponding; The Test driver voltage that the adjustable GTG of driving circuit is corresponding is provided to display module.The Test driver voltage of adjustable GTG described in each, is all in the voltage range of this adjustable GTG when meeting target Gamma value, and display module can normally be worked.
Preferably, determine the relation curve showing driving voltage to be measured and standard gray scale in module, specifically comprise: the brightness data corresponding to picture under collection different driving voltage in multiple display module, determine the relation curve of many groups driving voltage to be measured and transmitance; According to the relation of standard gray scale and transmitance, obtain the standard relationship curve of standard gray scale and transmitance; Matching is carried out to driving voltage to be measured described in each and the relation curve of transmitance and the standard relationship curve of described standard gray scale and transmitance, obtains the relation curve of many groups driving voltage to be measured and standard gray scale.From the described display module determined driving voltage to be measured and standard gray scale relation curve in, the voltage range of each standard gray scale Test driver voltage required when meeting target Gamma value can be obtained.
Preferably, the Test driver voltage that the described adjustable GTG obtaining driving circuit is corresponding, specifically comprise: according to the relation curve of described many groups driving voltage to be measured and standard gray scale, obtain the voltage range of Test driver voltage when many each adjustable GTGs of group meet target Gamma value; According to the voltage range of the Test driver voltage of described many each adjustable GTGs of group, met the Test driver voltage of the adjustable GTG of described multiple display module simultaneously.The Test driver voltage obtained by this step, can meet the normal requirements of one's work of above-mentioned multiple display modules.
The standard relationship curve of described standard gray scale and transmitance meets:
T=(L/M)
G
Wherein, G is target gamma value, and T is transmissivity, and L is standard gray scale, and M is the maximal value of standard gray scale L.The standard relationship curve of described standard gray scale and transmitance, for the aim curve of the actual relationship curve as adjustable GTG and transmitance.
Embodiments provide a kind of adjusting gear showing the driving voltage of module, described device comprises:
Acquisition module, for gathering the brightness data in display module corresponding to the adjustable GTG of driving circuit under the effect of Test driver voltage, and is sent to calculation process module by the brightness data collected;
Calculation process module, for receiving the brightness data that acquisition module sends, and determines the actual relationship curve of adjustable GTG and transmitance according to described brightness data; And described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determine the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance, and the comparative result of the difference comprising described transmitance is sent to adjusting module;
Adjusting module, for receiving described comparative result, difference according to described transmitance adjusts Test driver voltage, the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determines the driving voltage after showing module adjustment.
Preferably, described adjusting module, also for according to the driving voltage after described adjustment, determine the divider resistance resistance corresponding to the driving voltage after this adjustment, according to the ratio between these divider resistance resistances, can obtain, in the design of display module driving circuit, the optimal resistance resistance required for the driving voltage after this adjustment being obtained.
Preferably, described calculation process module, also for determining to show the relation curve for the driving voltage to be measured and standard gray scale of determining Test driver voltage in module, obtains the Test driver voltage that the adjustable GTG of driving circuit is corresponding; And provide to display module the Test driver voltage that the adjustable GTG of driving circuit is corresponding.
Preferably, the described relation curve determining Test driver voltage and standard gray scale, specifically comprises: the brightness data corresponding to picture under gathering different driving voltage to be measured in multiple display module, determines the relation curve of many groups driving voltage to be measured and transmitance; According to the relation of standard gray scale and transmitance, obtain the standard relationship curve of standard gray scale and transmitance; Driving voltage to be measured described in each and the relation curve of transmitance and the typical curve of described standard gray scale and transmitance are carried out matching, obtains the relation curve of many groups driving voltage to be measured and standard gray scale.From the described display module determined driving voltage to be measured and standard gray scale relation curve in, the voltage range of each standard gray scale Test driver voltage required when meeting target Gamma value can be obtained.
Preferably, the Test driver voltage that the described adjustable GTG obtaining driving circuit is corresponding, specifically comprise: according to the relation curve of described many groups driving voltage to be measured and standard gray scale, obtain the voltage range of Test driver voltage when many each adjustable GTGs of group meet target Gamma value; According to the voltage range of the Test driver voltage of described many each adjustable GTGs of group, met the Test driver voltage of the adjustable GTG of described multiple display module simultaneously.Described Test driver voltage can meet the normal requirements of one's work of above-mentioned multiple display modules.
The standard relationship curve of described standard gray scale and transmitance meets:
T=(L/M)
G
Wherein, G is target gamma value, and T is transmissivity, and L is standard gray scale, and M is the maximal value of standard gray scale L.The standard relationship curve of described standard gray scale and transmitance, for the aim curve of the actual relationship curve as adjustable GTG and transmitance.
Accompanying drawing explanation
The schematic flow sheet of the method for adjustment of driving voltage in the display 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 display module;
Fig. 3 is the standard relationship curve synoptic diagram of standard gray scale and transmitance;
Fig. 4 is the method schematic diagram of the driving voltage obtaining display module;
The structural representation of the adjusting gear of the driving voltage of the display module that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of method of adjustment and the adjusting gear that show the driving voltage of module, in order to improve the adjustment degree of accuracy of driving voltage, and the workload of debugging can be reduced, increase work efficiency.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention one provides a kind of method of adjustment showing the driving voltage of module, and described method comprises:
Gather the brightness data adjustable GTG corresponding to of driving circuit under the effect of Test driver voltage in display module, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data;
Described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determines the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance;
The driving voltage of difference to driving circuit according to described transmitance adjusts, and the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determine the driving voltage after the adjustment of display module.
See Fig. 1, in the process implemented, described method of adjustment specifically comprises:
Step 101, see Fig. 2, a series of driving voltage to be measured is provided to respectively to multiple display module by surveying instrument, and gather the brightness data showing the picture of module under difference driving voltage to be measured described in each, according to described brightness data, obtain each the display driving voltage to be measured of module and relation curve of transmitance, i.e. V-T curve, wherein, V represents driving voltage, and T represents transmitance; Described in a series of driving voltage that provides of display module, minimum value is 0v, then progressively increases with the amplitude of 0.1v, until the transmitance of described display module reaches 100%.
As can be seen from Figure 2, the transmitance of described display module within the specific limits, increases along with the progressively increase of driving voltage to be measured.
It is noted that described display module can be liquid crystal display mode group, it can also be other the display module such as Organic Light Emitting Diode OLED, plasma PDP or CRT.
Step 102, see Fig. 3, according to the relation between standard gray scale and transmitance, obtains the standard relationship curve of standard gray scale L and transmitance, i.e. L-T typical curve; Wherein, L represents standard gray scale, and its span is 0-255; As can be seen from Figure 3, the transmitance corresponding to same standard gray scale reduces along with the increase gradually of target Gamma value.
The standard relationship curve of described standard gray scale and transmitance meets:
T=(L/M)
G
Wherein, G is target gamma value, and T is transmissivity, and L is standard gray scale, and M is the maximal value of standard gray scale L.
Step 103, according to the standard relationship curve of the standard gray scale L obtained in each the display driving voltage to be measured of module obtained in step 101 and the relation curve of transmitance and step 102 and transmitance, simulate each the display driving voltage to be measured of module and the relation curve of standard gray scale, i.e. V-L curve;
According to V-L curve of each display module above-mentioned, obtain the span of the Test driver voltage of each adjustable GTG in this display module, described standard gray scale, represent 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 finer and smoother, minimum sandards grey decision-making is, maximum standard gray scale value is, therefore we are referred to as 256 standard gray scale, and for a display module, can not get whole standard gray scale in its driving circuit, can only get a part wherein, the described part of standards GTG that can get is called adjustable GTG by us, such as, the driving circuit in this display 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, therefore we will get part of standards GTG 0, 4, 8, 16, 52, 76, 100, 131, 152, 176, 203, 225, 239, 247, 251, the 255 adjustable GTGs being called this display module, then the rule that the transmitance corresponding to each standard gray scale reduces gradually along with the increase of target Gamma value, and the rule that transmittance increases along with progressively increasing of driving voltage to be measured within the specific limits, each adjustable GTG can be obtained and meeting target Gamma value (with target Gamma value value 2.2, its error is ± 0.2 is example) time voltage range, the voltage range that such as adjustable GTG 76 meets is [V76
2.4, V76
2.0].
For described multiple display module, the voltage range of many groups Test driver voltage corresponding with adjustable GTG 76 can be obtained, concrete: the voltage range that in first display module, adjustable GTG 76 is corresponding is: S1 [U
1, U
2], the voltage range that in second display module, adjustable GTG 76 is corresponding is: S2 [U
3, U
4] ..., the voltage range that in the n-th display module, adjustable GTG 76 is corresponding is: Sn [U
2n-1, U
2n], described many groups voltage range corresponding with adjustable GTG 76 is sought common ground, as shown in Figure 4, obtains the voltage range S that a group can meet described multiple display module simultaneously, and from described S, get an intermediate value, as the Test driver voltage of adjustable GTG 76 in described multiple display module;
According to above-mentioned steps, other Test driver voltage corresponding to adjustable GTG can be obtained equally.
Step 104, by the test voltage that the adjustable GTG of each in voltage regulator output driving circuit is corresponding, then by the brightness data of the picture of luminance test instrument collection display module under this Test driver voltage, and the actual relationship curve of adjustable GTG and transmitance is determined according to described brightness data.
Step 105, described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of described standard gray scale and transmitance are compared, determines the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance.
Step 106, according to the difference of described transmitance and the voltage adjusting method control voltage regulator that presets, the Test driver voltage exported is adjusted, then collection and the comparison of the actual relationship curve of adjustable GTG and transmitance is repeated, until the difference of transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance meets set requirement, such as, described adjustable GTG is identical with the standard relationship curve of standard gray scale and transmitance with the actual relationship curve of transmitance.
Step 107, after completing steps 106, obtains the driving voltage after the adjustment of display module; Or/and, by voltage regulator internal resistance voltage divider principle, calculate the divider resistance resistance corresponding to the driving voltage after described adjustment, can obtain showing by these resistance ratios the optimum resistance value that module driving circuit design wants.
Be pointed out that, in the method that the embodiment of the present invention provides, the Test driver voltage of adjustable GTG in described multiple display module can not be obtained by described step 101, described step 102 and described step 103, developer according to its product design experience for described multiple display module provides one group of Test driver voltage, then can realize the adjustment of the driving voltage of display module by subsequent step.
The embodiment of the present invention two provides a kind of adjusting gear showing 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 display module comprises: acquisition module 501, calculation process module 502 and adjusting module 503, concrete:
Described acquisition module 501, for gathering the brightness data in display module corresponding to the adjustable GTG of driving circuit under the effect of Test driver voltage, and is sent to calculation process module 502 by the brightness data collected;
Described calculation process module 502, for receiving the brightness data that acquisition module 501 sends, and determines the actual relationship curve of adjustable GTG and transmitance according to described brightness data; And described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determine the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance, and the comparative result of the difference comprising described transmitance is sent to adjusting module 503; The standard relationship curve of described standard gray scale and transmitance meets:
T=(L/M)
G
Wherein, G is target gamma value, and T is transmissivity, and L is standard gray scale, and M is the maximal value of standard gray scale L.
Adjusting module 503, for receiving described comparative result, and according to the difference of the transmitance in described result, Test driver voltage is adjusted, the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determine the driving voltage after showing module adjustment.
Described adjusting module 503, also for determining the divider resistance resistance corresponding to the driving voltage after described adjustment.
Wherein, described acquisition module 501, described calculation process module 502 and adjusting module 503, also for determining the process of the Test driver voltage showing module, concrete:
Described acquisition module 501, by surveying instrument to when providing a series of driving voltage to be measured respectively to multiple display module, gather the brightness data showing the picture of module under difference driving voltage to be measured described in each, and send to described calculation process module 502.Described in the driving voltage a series of to be measured that provides of display module, minimum value is 0v, then progressively increases with the amplitude of 0.1v, until make the transmitance of described display module reach 100%.
Described calculation process module 502, according to described brightness data, determines the relation curve of driving voltage to be measured and transmitance in each display module, as shown in Figure 2; Described driving voltage to be measured and the relation curve of transmitance and the typical curve of standard gray scale and transmitance are carried out matching, obtains the relation curve of driving voltage to be measured and standard gray scale in each display module, as shown in Figure 3; As can be seen from Figure 2, the transmittance of display module within the specific limits, increases along with the progressively increase of driving voltage to be measured; As can be seen from Figure 3, the transmitance corresponding to same adjustable GTG reduces along with the increase gradually of target Gamma value.
According to V-L curve of each display module above-mentioned, obtain the voltage range of the Test driver voltage of each adjustable GTG in this display module, such as, for display module, the adjustable GTG of this display module is respectively 0, 4, 8, 16, 52, 76, 100, 131, 152, 176, 203, 225, 239, 247, 251, 255, according to the rule that transmitance reduces gradually along with the increase of target Gamma value, and the rule that transmittance increases along with progressively increasing of driving voltage within the specific limits, each adjustable GTG can be obtained and meeting target Gamma value (with target Gamma value value 2.2, its error is ± 0.2 is example) time voltage range, the voltage range that such as adjustable GTG 76 meets is [V76
2.4, V76
2.0],
For described multiple display module, the voltage range that many groups are corresponding with adjustable GTG 76 can be obtained, described adjusting module 503 seeks common ground to described many groups voltage range corresponding with adjustable GTG 76, obtain the voltage range that a group can meet described multiple display module simultaneously, and from described can meet the voltage range of described multiple display module simultaneously get an intermediate value, as the Test driver voltage of adjustable GTG 76 in described multiple display module; In like manner, other Test driver voltage corresponding to adjustable GTG can be obtained;
Described operating and processing module 502, also for providing to display module the Test driver voltage that each adjustable GTG of driving circuit is corresponding.
To sum up, in the method for adjustment of the driving voltage of the display module that the embodiment of the present invention provides, Test driver voltage and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, as the method for adjustment driving voltage, can more accurately effective Test driver voltage in debug process be adjusted; Further, driving voltage combines with the standard relationship curve of transmitance with standard gray scale with the actual relationship curve of transmitance by the method, for determining the Test driver voltage of adjustable GTG when meeting target Gamma value in display module; In addition, described mediation process can utilize the program pre-set, and achieves the intellectuality of adjustment process, decreases the workload of debugging, increases work efficiency, and also reduces the interference of artifact simultaneously.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. show a method of adjustment for the driving voltage of module, it is characterized in that, described method comprises:
The brightness data corresponding to picture under gathering different driving voltage to be measured in multiple display module, determines the relation curve of many groups driving voltage to be measured and transmitance;
According to the relation of standard gray scale and transmitance, obtain the standard relationship curve of standard gray scale and transmitance;
Matching is carried out to driving voltage to be measured described in each and the relation curve of transmitance and the standard relationship curve of described standard gray scale and transmitance, obtains the relation curve of many groups driving voltage to be measured and standard gray scale;
According to the relation curve of described many groups driving voltage to be measured and standard gray scale, obtain the voltage range of Test driver voltage when many each adjustable GTGs of group meet target gamma value;
According to the voltage range of the Test driver voltage of described many each adjustable GTGs of group, met the Test driver voltage of the adjustable GTG of described multiple display module simultaneously;
The Test driver voltage that the adjustable GTG of driving circuit is corresponding is provided to display module;
Gather the brightness data adjustable GTG corresponding to of driving circuit under the effect of Test driver voltage in display module, and determine the actual relationship curve of adjustable GTG and transmitance according to described brightness data;
Described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determines the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance;
The Test driver voltage of difference to driving circuit according to described transmitance adjusts, and the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determine the driving voltage after the adjustment of display module.
2. method as claimed in claim 1, it is characterized in that, described method also comprises: according to the driving voltage after described adjustment, determines the divider resistance resistance corresponding to the driving voltage after described adjustment.
3. method as claimed in claim 1, is characterized in that, the standard relationship curve of described standard gray scale and transmitance meets:
T＝(L/M)
G
Wherein, G is target gamma value, and T is transmissivity, and L is standard gray scale, and M is the maximal value of standard gray scale L.
4. show an adjusting gear for the driving voltage of module, it is characterized in that, described device comprises:
Acquisition module, for gathering the brightness data in display module corresponding to the adjustable GTG of driving circuit under the effect of Test driver voltage, and is sent to calculation process module by the brightness data collected;
Calculation process module, for receiving the brightness data that acquisition module sends, and determines the actual relationship curve of adjustable GTG and transmitance according to described brightness data; And described adjustable GTG and the actual relationship curve of transmitance and the standard relationship curve of standard gray scale and transmitance are compared, determine the difference of the transmitance between the actual relationship curve of adjustable GTG and transmitance and the standard relationship curve of standard gray scale and transmitance, and the comparative result of the difference comprising described transmitance is sent to adjusting module; And, for determining to show the relation curve for the driving voltage to be measured and standard gray scale of determining Test driver voltage in module, obtain the Test driver voltage that the adjustable GTG of driving circuit is corresponding; And provide to display module the Test driver voltage that the adjustable GTG of driving circuit is corresponding;
Adjusting module, for receiving described comparative result, difference according to described transmitance adjusts Test driver voltage, the difference of the transmitance between described actual relationship curve and standard relationship curve is met and sets requirement, and determines the driving voltage after showing module adjustment;
Wherein, the described relation curve determining driving voltage to be measured and standard gray scale, specifically comprises:
The brightness data corresponding to picture under gathering different driving voltage to be measured in multiple display module, determines the relation curve of many groups driving voltage to be measured and transmitance;
According to the relation of standard gray scale and transmitance, obtain the standard relationship curve of standard gray scale and transmitance;
Driving voltage to be measured described in each and the relation curve of transmitance and the typical curve of described standard gray scale and transmitance are carried out matching, obtains the relation curve of many groups driving voltage to be measured and standard gray scale;
The Test driver voltage that the described adjustable GTG obtaining driving circuit is corresponding, specifically comprises:
According to the relation curve of described many groups driving voltage to be measured and standard gray scale, obtain the voltage range of Test driver voltage when many each adjustable GTGs of group meet target gamma value;
According to the voltage range of the Test driver voltage of described many each adjustable GTGs of group, met the Test driver voltage of the adjustable GTG of described multiple display module simultaneously.
5. device as claimed in claim 4, is characterized in that, described adjusting module, also for according to the driving voltage after described adjustment, determines the divider resistance resistance corresponding to the driving voltage after this adjustment.
6. device as claimed in claim 4, is characterized in that, the relationship by objective (RBO) curve of described standard gray scale and transmitance meets:
T＝(L/M)
G
Wherein, G is target gamma value, and T is transmissivity, and L is standard gray scale, and M is the maximal value of standard gray scale L.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308240.3A CN103413513B (en) | 2013-07-22 | 2013-07-22 | A kind of method of adjustment and device showing module driving voltage |
| PCT/CN2013/085946 WO2015010378A1 (en) | 2013-07-22 | 2013-10-25 | Adjustment method and device for drive voltage of display module, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308240.3A CN103413513B (en) | 2013-07-22 | 2013-07-22 | A kind of method of adjustment and device showing module driving voltage |
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| CN103413513B true CN103413513B (en) | 2016-03-30 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464674B (en) | 2014-12-26 | 2017-12-08 | 小米科技有限责任公司 | Liquid crystal display method of adjustment and device |
| CN105096827B (en) | 2015-08-14 | 2017-12-08 | 京东方科技集团股份有限公司 | Gamma curve adjusting method and device |
| CN107093413B (en) * | 2017-06-29 | 2019-10-15 | 武汉精测电子集团股份有限公司 | A kind of gamma adjusting method of LCD screen |
| CN109559707B (en) * | 2018-12-26 | 2020-11-24 | 惠科股份有限公司 | Gamma value processing method and device of display panel and display equipment |
| CN111383608B (en) * | 2018-12-29 | 2022-01-25 | 北京小米移动软件有限公司 | Display control method and apparatus, electronic device, and computer-readable storage medium |
| CN110875001A (en) * | 2019-11-29 | 2020-03-10 | 京东方科技集团股份有限公司 | Test circuit, display substrate, display panel and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101295472A (en) * | 2007-04-24 | 2008-10-29 | 北京京东方光电科技有限公司 | LCD device high dynamic contrast processing equipment and method |
| CN101593495A (en) * | 2009-04-08 | 2009-12-02 | 昆山龙腾光电有限公司 | The method and apparatus of LCD gamma value and the method for producing the liquid crystal panel module are set |
| CN101937634A (en) * | 2010-09-01 | 2011-01-05 | 青岛海信电器股份有限公司 | Picture regulating method and device of liquid crystal panel |
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| CN103325357B (en) * | 2013-07-05 | 2016-04-13 | 合肥京东方光电科技有限公司 | A kind of gamma voltage method of adjustment, system and electronic equipment |
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- 2013-07-22 CN CN201310308240.3A patent/CN103413513B/en not_active Expired - Fee Related
- 2013-10-25 WO PCT/CN2013/085946 patent/WO2015010378A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295472A (en) * | 2007-04-24 | 2008-10-29 | 北京京东方光电科技有限公司 | LCD device high dynamic contrast processing equipment and method |
| CN101593495A (en) * | 2009-04-08 | 2009-12-02 | 昆山龙腾光电有限公司 | The method and apparatus of LCD gamma value and the method for producing the liquid crystal panel module are set |
| CN101937634A (en) * | 2010-09-01 | 2011-01-05 | 青岛海信电器股份有限公司 | Picture regulating method and device of liquid crystal panel |
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| CN103413513A (en) | 2013-11-27 |
| WO2015010378A1 (en) | 2015-01-29 |
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