CN104809991A - Method for determining reference voltage of display screen - Google Patents
Method for determining reference voltage of display screen Download PDFInfo
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- CN104809991A CN104809991A CN201510157679.XA CN201510157679A CN104809991A CN 104809991 A CN104809991 A CN 104809991A CN 201510157679 A CN201510157679 A CN 201510157679A CN 104809991 A CN104809991 A CN 104809991A
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Abstract
The embodiment of the invention provides a method for determining reference voltage of a display screen. The method comprises the following steps: measuring a current level flicker value under current level reference voltage of the display screen; judging whether the current level flicker value is smaller than a superior flicker value, wherein the superior flicker value is the measured flicker value of the display screen under the superior reference voltage, and the superior reference voltage is lowered according to preset quantity to obtain the current level reference voltage; if the current level flicker value is smaller than the superior flicker value, lowering the current level reference voltage according to the preset quantity to obtain lower level reference voltage; measuring the low level flicker value under the low level reference voltage of the display screen; judging whether the low level flicker value is smaller than the current level flicker value; if the low level flicker value is greater than the current level flicker value, determining the current level reference voltage as target reference voltage. By implementing the embodiment of the invention, the display effect of the display screen can be improved.
Description
Technical field
The present invention relates to display technique field, be specifically related to a kind of method determining display screen reference voltage.
Background technology
Current, the electron device such as mobile phone, panel computer uses Thin Film Transistor (TFT)-LCDs (Thin Film Transistor-Liquid Crystal Display in a large number, TFT-LCD), TFT-LCD is fast with its reaction velocity, and the advantages such as angle of visibility is large are widely used in the terminals such as mobile phone.
Each TFT-LCD has a target reference voltage, when working under target reference voltage, the flicker value of TFT-LCD is minimum, duty is best, and due to the difference between TFT-LCD, the target reference voltage of each TFT-LCD has fine distinction, when producing TFT-LCD in batches, if all TFT-LCD all use same reference voltage, the flicker value of part TFT-LCD can be caused bigger than normal, and display effect is bad.
Summary of the invention
Embodiments provide a kind of method determining display screen reference voltage, the display effect of display screen can be improved.
Embodiments provide a kind of method determining display screen reference voltage, comprising:
Measure display screen when under prime reference voltage when prime flicker value;
Judge whether described prime flicker value of working as is less than higher level's flicker value; Described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, and it is described when prime reference voltage that described higher level's reference voltage turns down acquisition by described predetermined amount;
Work as prime flicker value if described and be less than described higher level's flicker value, turn down by described predetermined amount described when prime reference voltage, obtain subordinate reference voltage;
Measure the subordinate flicker value of described display screen under described subordinate reference voltage;
Judge whether described subordinate flicker value is less than described when prime flicker value; Described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as turns down the described subordinate reference voltage of acquisition by described predetermined amount;
If described subordinate flicker value is greater than described when prime flicker value, described prime reference voltage of working as is defined as target reference voltage.
The embodiment of the present invention can measure display screen when under prime reference voltage when prime flicker value; Judge whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is turned down by predetermined amount and obtained when prime reference voltage; If when prime flicker value is less than higher level's flicker value, turn down when prime reference voltage by predetermined amount, obtain subordinate reference voltage; Measure the subordinate flicker value of display screen under subordinate reference voltage; Judge whether subordinate's flicker value is less than when prime flicker value; If subordinate's flicker value is greater than when prime flicker value, prime reference voltage will be worked as and be defined as target reference voltage.Visible, the embodiment of the present invention can by determining the target reference voltage of display screen, and the flicker value that display screen is worked under target reference voltage is minimum, and display effect is best, thus improve the display effect of display screen.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present invention technical scheme, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet determining the method for display screen reference voltage that the embodiment of the present invention provides;
Fig. 2 is the schematic flow sheet that another kind that the embodiment of the present invention provides determines the method for display screen reference voltage;
Fig. 3 is a kind of structural representation determining the device of display screen reference voltage that the embodiment of the present invention provides;
Fig. 4 is the structural representation that another kind that the embodiment of the present invention provides determines the device of display screen reference voltage;
Fig. 5 be the embodiment of the present invention provide another determine the structural representation of the device of display screen reference voltage;
Fig. 6 is the change curve of flicker value with reference voltage of the TFT-LCD that the embodiment of the present invention provides.
Embodiment
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 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.
Embodiments provide a kind of method determining display screen reference voltage, the display effect of display screen can be improved.Below be described in detail respectively.
Refer to Fig. 1, Fig. 1 is a kind of schematic flow sheet determining the method for display screen reference voltage that the embodiment of the present invention provides.As shown in Figure 1, determine that the method for display screen reference voltage can comprise the following steps:
S101, measure display screen when under prime reference voltage when prime flicker value.
In the embodiment of the present invention, display screen can be Thin Film Transistor (TFT)-LCDs (ThinFilm Transistor-Liquid Crystal Display, TFT-LCD), each TFT-LCD has a target reference voltage, when working under target reference voltage, the flicker value of TFT-LCD is minimum, and duty is best, due to the difference between TFT-LCD, the target reference voltage of each TFT-LCD has fine distinction.For example, the flicker value of TFT-LCD with reference voltage change curve as shown in Figure 6, as individual bowl-type, the flicker value of each TFT-LCD is different with the curve of reference voltage, and reference voltage corresponding to the minimum flicker value of each TFT-LCD is also had any different.After measuring higher level's flicker value of TFT-LCD under higher level's reference voltage, measure display screen when under prime reference voltage when prime flicker value, first the embodiment of the present invention adds up the mean value of the target reference voltage of the TFT-LCD of some, as initial reference voltage, can using this initial reference voltage as higher level's reference voltage, then under this initial reference voltage, measure the flicker value of TFT-LCD, because the target reference voltage difference of each TFT-LCD is little, and the flicker value of each TFT-LCD is with a change curve picture bowl-type of reference voltage, only need by the increase of this initial reference voltage or after reducing certain numerical value, remeasure the flicker value of TFT-LCD, until the reference voltage that the minimum flicker value finding out TFT-LCD is corresponding.The embodiment of the present invention is when producing TFT-LCD in batches, the target reference voltage that the minimum flicker value of each TFT-LCD is corresponding can be found out fast, make every block TFT-LCD flicker value operationally minimum, display effect is best, thus improves the display effect of display screen.
S102, judges whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is turned down by predetermined amount and obtained when prime reference voltage.
In the embodiment of the present invention, measure display screen when under prime reference voltage before the prime flicker value, measure the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount, higher level's reference voltage can be that the reference voltage of the previous stage of higher level's reference voltage turns down acquisition by predetermined amount, also can be initial reference voltage.Judge that when whether prime flicker value is less than higher level's flicker value be to determine whether higher level's reference voltage is target reference voltage, if when prime flicker value is less than higher level's flicker value, then higher level's reference voltage is not target reference voltage, if when prime flicker value is greater than higher level's flicker value, then higher level's flicker value may be target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is not initial reference voltage, then higher level's reference voltage is target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is initial reference voltage, then initial reference voltage differs and is decided to be target reference voltage, also need further to adjust initial reference voltage, continue to find target reference voltage.
S103, if when prime flicker value is less than higher level's flicker value, turn down when prime reference voltage by predetermined amount, obtains subordinate reference voltage.
In the embodiment of the present invention, measure display screen when under prime reference voltage when prime flicker value after, if work as prime flicker value to be less than higher level's flicker value, turn down when prime reference voltage by predetermined amount, acquisition subordinate reference voltage.Wherein, predetermined amount can be arranged as required, and predetermined amount arranges less, and computing velocity is slower, and the target voltage determined is more accurate, and predetermined amount arranges larger, and computing velocity is faster, and the target voltage determined gets over out of true.In the embodiment of the present invention, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount, if when prime flicker value is less than higher level's flicker value, show when prime reference voltage is closer to target reference voltage.
S104, measures the subordinate flicker value of display screen under subordinate reference voltage.
In the embodiment of the present invention, subordinate reference voltage turns down acquisition by predetermined amount on the basis when prime reference voltage.
S105, judges whether subordinate's flicker value is less than when prime flicker value.
In the embodiment of the present invention, judge subordinate's flicker value whether be less than when prime flicker value be in order to determine when prime flicker value corresponding when prime reference voltage whether be target reference voltage, if subordinate's flicker value is greater than when prime flicker value, then determine when prime reference voltage is target reference voltage, if subordinate's flicker value is less than when prime flicker value, then also need to turn down subordinate reference voltage further, continue to find target reference voltage.
S106, if subordinate's flicker value is greater than when prime flicker value, will works as prime reference voltage and be defined as target reference voltage.
In the embodiment of the present invention, when subordinate's flicker value is greater than when prime flicker value, because higher level's flicker value is greater than when prime flicker value, known when prime flicker value minimum, be about to be defined as target reference voltage when prime reference voltage.
In the method described by Fig. 1, measure display screen when under prime reference voltage when prime flicker value; Judge whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is turned down by predetermined amount and obtained when prime reference voltage; If when prime flicker value is less than higher level's flicker value, turn down when prime reference voltage by predetermined amount, obtain subordinate reference voltage; Measure the subordinate flicker value of display screen under subordinate reference voltage; Judge whether subordinate's flicker value is less than when prime flicker value; If subordinate's flicker value is greater than when prime flicker value, prime reference voltage will be worked as and be defined as target reference voltage.Visible, the method described by Fig. 1 is by determining the target reference voltage of display screen, and the flicker value that display screen is worked under target reference voltage is minimum, and display effect is best, thus improves the display effect of display screen.
Refer to Fig. 2, Fig. 2 is the schematic flow sheet that another kind that the embodiment of the present invention provides determines the method for display screen reference voltage.As shown in Figure 2, determine that the method for display screen reference voltage can comprise the following steps:
S201, measures the target reference voltage of the display screen of predetermined number respectively.
In the embodiment of the present invention, the target reference voltage measuring the display screen of predetermined number is respectively that predetermined number is larger, and initial reference voltage more approaches target reference voltage in order to obtain initial reference voltage accurately.Here predetermined number can be set to 100, also can be set to 50,150,200 etc.
In the embodiment of the present invention, measure the target reference voltage of the display screen of predetermined number respectively, can comprise the following steps:
11) measure the flicker value of display screen under each predeterminated voltage of predetermined number respectively, each predeterminated voltage is voltage value predetermined voltage range equal portions being divided into each cut-point after default number;
12) determine respectively predeterminated voltage to be set to the target reference voltage of the display screen of predetermined number by the predeterminated voltage that flicker value minimum in the flicker value of the display screen of predetermined number under each predeterminated voltage is corresponding.
In the embodiment of the present invention, for example, if predetermined number is 100, predetermined voltage range is 0-12V, a magnitude of voltage is got every 0.001V, measure each display screen respectively at 0.001V, 0.002V, 0.003V ... .11.998V the flicker value, under 11.999V and 12.000V, finds out the target reference voltage that the minimum flicker value of each display screen is corresponding respectively.
S202, calculates the mean value of the target reference voltage of the display screen of predetermined number, determines that the mean value of the target reference voltage of the display screen of predetermined number is initial reference voltage, using initial reference voltage as higher level's reference voltage.
Such as, when in the embodiment of the present invention, predetermined number is 100, calculate the mean value of the target reference voltage of 100 display screens, using this mean value as initial reference voltage, this initial voltage can be set to higher level's reference voltage, then perform step S203 or step S212.
S203, measure display screen when under prime reference voltage when prime flicker value.
S204, judges whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is turned down by predetermined amount and obtained when prime reference voltage.If when prime flicker value is less than higher level's flicker value, perform step S205-step S209, if when prime flicker value is greater than higher level's flicker value, perform step S210 or step S211
S205, turns down when prime reference voltage by predetermined amount, obtains subordinate reference voltage.
S206, measures the subordinate flicker value of display screen under subordinate reference voltage.
S207, judges whether subordinate's flicker value is less than when prime flicker value.
S208, if subordinate's flicker value is greater than when prime flicker value, will works as prime reference voltage and be defined as target reference voltage.
S209, if subordinate's flicker value is less than when prime flicker value, turns down subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, returns and perform step S203.
In the embodiment of the present invention, if subordinate's flicker value is less than when prime flicker value, show that this subordinate's flicker value is closer to target reference voltage, turn down subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, return and perform step S203.
S210, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, heightens initial reference voltage by predetermined amount, obtains new for prime reference voltage, and performs step S212; Higher level's flicker value measures the flicker value of display screen under initial reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount.
In the embodiment of the present invention, if when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, show that initial reference voltage is closer to target reference voltage, need to heighten initial reference voltage, and work as prime reference voltage as new, and perform step S212.
S211, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, is defined as target reference voltage by reference voltage corresponding for higher level's flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount.
In the embodiment of the present invention, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, higher level's reference voltage is that the reference voltage of the previous stage of higher level's reference voltage turns down acquisition by predetermined amount, and when prime flicker value is greater than higher level's flicker value, show that higher level's flicker value is minimum, the higher level reference voltage corresponding by higher level's flicker value is defined as target reference voltage.
S212, measure display screen when under prime reference voltage when prime flicker value.
In the embodiment of the present invention, after measuring higher level's flicker value of TFT-LCD under higher level's reference voltage, measure display screen when under prime reference voltage when prime flicker value, first the embodiment of the present invention adds up the mean value of the target reference voltage of the TFT-LCD of some, as initial reference voltage, can using this initial reference voltage as higher level's reference voltage, then under this initial reference voltage, measure the flicker value of TFT-LCD, because the target reference voltage difference of each TFT-LCD is little, and the flicker value of each TFT-LCD is with a change curve picture bowl-type of reference voltage, only need by the increase of this initial reference voltage or after reducing certain numerical value, remeasure the flicker value of TFT-LCD, until the reference voltage that the minimum flicker value finding out TFT-LCD is corresponding.The embodiment of the present invention is when producing TFT-LCD in batches, the target reference voltage that the minimum flicker value of each TFT-LCD is corresponding can be found out fast, make every block TFT-LCD flicker value operationally minimum, display effect is best, thus improves the display effect of display screen.
S213, judges whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is heightened by predetermined amount and obtained when prime reference voltage; If when prime flicker value is less than higher level's flicker value, perform step S214-step S218, if when prime flicker value is greater than higher level's flicker value, perform step S219 or step S220.
In the embodiment of the present invention, judge that when whether prime flicker value is less than higher level's flicker value be to determine whether higher level's reference voltage is target reference voltage, if when prime flicker value is less than higher level's flicker value, then higher level's reference voltage is not target reference voltage, if when prime flicker value is greater than higher level's flicker value, then higher level's flicker value may be target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is not initial reference voltage, then higher level's reference voltage is target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is initial reference voltage, then initial reference voltage differs and is decided to be target reference voltage, also need further to adjust initial reference voltage, continue to find target reference voltage.
S214, heightens when prime reference voltage by predetermined amount, obtains subordinate reference voltage.
In the embodiment of the present invention, measure display screen when under prime reference voltage when prime flicker value after, if work as prime flicker value to be less than higher level's flicker value, heighten when prime reference voltage by predetermined amount, acquisition subordinate reference voltage.Wherein, predetermined amount can be arranged as required, and predetermined amount arranges less, and computing velocity is slower, and the target voltage determined is more accurate, and predetermined amount arranges larger, and computing velocity is faster, and the target voltage determined gets over out of true.In the embodiment of the present invention, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount, if when prime flicker value is less than higher level's flicker value, show when prime reference voltage is closer to target reference voltage.
S215, measures the subordinate flicker value of display screen under subordinate reference voltage.
In the embodiment of the present invention, subordinate reference voltage heightens acquisition by predetermined amount on the basis when prime reference voltage.
S216, judges whether subordinate's flicker value is less than when prime flicker value.
In the embodiment of the present invention, judge subordinate's flicker value whether be less than when prime flicker value be in order to determine when prime flicker value corresponding when prime reference voltage whether be target reference voltage, if subordinate's flicker value is greater than when prime flicker value, then determine when prime reference voltage is target reference voltage, if subordinate's flicker value is less than when prime flicker value, then also need to heighten subordinate reference voltage further, continue to find target reference voltage.
S217, if subordinate's flicker value is greater than when prime flicker value, will works as prime reference voltage and be defined as target reference voltage.
In the embodiment of the present invention, when subordinate's flicker value is greater than when prime flicker value, because higher level's flicker value is greater than when prime flicker value, known when prime flicker value minimum, be about to be defined as target reference voltage when prime reference voltage.
S218, if subordinate's flicker value is less than when prime flicker value, heightens subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, returns and perform step S212.
In the embodiment of the present invention, if subordinate's flicker value is less than when prime flicker value, show that this subordinate's flicker value is closer to target reference voltage, heighten subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, return and perform step S212.
S219, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, turns down initial reference voltage by predetermined amount, obtains new for prime reference voltage, and returns and perform step S203; Higher level's flicker value measures the flicker value of display screen under initial reference voltage, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount.
In the embodiment of the present invention, if when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, show that initial reference voltage is closer to target reference voltage, need to turn down initial reference voltage, and work as prime reference voltage as new, and perform step S203.
S220, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, is defined as target reference voltage by reference voltage corresponding for higher level's flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount.
In the embodiment of the present invention, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, higher level's reference voltage is that the reference voltage of the previous stage of higher level's reference voltage turns down acquisition by predetermined amount, and when prime flicker value is greater than higher level's flicker value, show that higher level's flicker value is minimum, the higher level reference voltage corresponding by higher level's flicker value is defined as target reference voltage.
In the method described by Fig. 2, first measure the flicker value of display screen under initial reference voltage, then heighten gradually or turn down initial reference voltage, until find the minimum reference voltage of display screen flicker value and be defined as the target reference voltage of display screen.Visible, the method described by Fig. 2 makes every block display screen can work under target reference voltage, and the flicker value of display screen is minimum, and display effect is best, thus improves the display effect of display screen.
Refer to Fig. 3, Fig. 3 is a kind of structural representation determining the device of display screen reference voltage that the embodiment of the present invention provides.Wherein, the device shown in Fig. 3 can comprise the first measuring unit 301, first judging unit 302, first regulon 303, second measuring unit 304, second judging unit 305 and the first determining unit 306.
First measuring unit 301, for measure display screen when under prime reference voltage when prime flicker value.
In the embodiment of the present invention, display screen can be Thin Film Transistor (TFT)-LCDs (ThinFilm Transistor-Liquid Crystal Display, TFT-LCD), each TFT-LCD has a target reference voltage, when working under target reference voltage, the flicker value of TFT-LCD is minimum, duty target, due to the difference between TFT-LCD, the target reference voltage of each TFT-LCD has fine distinction.For example, the flicker value of TFT-LCD with reference voltage change curve as shown in Figure 6, as individual bowl-type, the flicker value of each TFT-LCD is different with the curve of reference voltage, and reference voltage corresponding to the minimum flicker value of each TFT-LCD is also had any different.After measuring higher level's flicker value of TFT-LCD under higher level's reference voltage, measure display screen when under prime reference voltage when prime flicker value, first the embodiment of the present invention adds up the mean value of the target reference voltage of the TFT-LCD of some, as initial reference voltage, can using this initial reference voltage as higher level's reference voltage, then under this initial reference voltage, measure the flicker value of TFT-LCD, because the target reference voltage difference of each TFT-LCD is little, and the flicker value of each TFT-LCD is with a change curve picture bowl-type of reference voltage, only need by the increase of this initial reference voltage or after reducing certain numerical value, remeasure the flicker value of TFT-LCD, until the reference voltage that the minimum flicker value finding out TFT-LCD is corresponding.The embodiment of the present invention is when producing TFT-LCD in batches, the target reference voltage that the minimum flicker value of each TFT-LCD is corresponding can be found out fast, make every block TFT-LCD flicker value operationally minimum, display effect is best, thus improves the display effect of display screen.
First judging unit 302, for judging whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is turned down by predetermined amount and obtained when prime reference voltage.
In the embodiment of the present invention, measure display screen when under prime reference voltage before the prime flicker value, measure the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount, higher level's reference voltage can be that the reference voltage of the previous stage of higher level's reference voltage turns down acquisition by predetermined amount, also can be initial reference voltage.First judging unit 302 judges that when whether prime flicker value is less than higher level's flicker value be to determine whether higher level's reference voltage is target reference voltage, if when prime flicker value is less than higher level's flicker value, then higher level's reference voltage is not target reference voltage, if when prime flicker value is greater than higher level's flicker value, then higher level's flicker value may be target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is not initial reference voltage, then higher level's reference voltage is target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is initial reference voltage, then initial reference voltage differs and is decided to be target reference voltage, also need further to adjust initial reference voltage, continue to find target reference voltage.
First regulon 303, for when being less than higher level's flicker value when prime flicker value, turns down when prime reference voltage by predetermined amount, obtains subordinate reference voltage.
In the embodiment of the present invention, the first measuring unit 301 measure display screen when under prime reference voltage after prime flicker value, if be less than higher level's flicker value when prime flicker value, turn down when prime reference voltage by predetermined amount, obtain subordinate reference voltage.Wherein, predetermined amount can be arranged as required, and predetermined amount arranges less, and computing velocity is slower, and the target voltage determined is more accurate, and predetermined amount arranges larger, and computing velocity is faster, and the target voltage determined gets over out of true.In the embodiment of the present invention, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount, if when prime flicker value is less than higher level's flicker value, show when prime reference voltage is closer to target reference voltage.
Second measuring unit 304, for measuring the subordinate flicker value of display screen under subordinate reference voltage.
In the embodiment of the present invention, subordinate reference voltage turns down acquisition by predetermined amount on the basis when prime reference voltage.
Second judging unit 305, for judging whether subordinate's flicker value is less than when prime flicker value.
In the embodiment of the present invention, second judging unit 305 judge subordinate's flicker value whether be less than when prime flicker value be in order to determine when prime flicker value corresponding when prime reference voltage whether be target reference voltage, if subordinate's flicker value is greater than when prime flicker value, then determine when prime reference voltage is target reference voltage, if subordinate's flicker value is less than when prime flicker value, then also need to turn down subordinate reference voltage further, continue to find target reference voltage.
First determining unit 306, for being greater than when subordinate's flicker value when prime flicker value, will working as prime reference voltage and being defined as target reference voltage.
In the embodiment of the present invention, when subordinate's flicker value is greater than when prime flicker value, because higher level's flicker value is greater than when prime flicker value, known when prime flicker value minimum, the first determining unit 306 will be worked as prime reference voltage and be defined as target reference voltage.
See also Fig. 4, Fig. 4 is the structural representation that another kind that the embodiment of the present invention provides determines the device of display screen reference voltage.Wherein, the device shown in Fig. 4 is that installation optimization as shown in Figure 3 obtains.Compared with the device shown in Fig. 3, device shown in Fig. 4, except comprising the unit shown in Fig. 3, can also comprise the 3rd measuring unit 307, the 3rd judging unit 308, second regulon 309, the 4th measuring unit 310, the 4th judging unit 311, second determining unit 312, the 5th measuring unit 313, the 3rd determining unit 314, the 3rd regulon 315, the 4th regulon 316, the 5th regulon 317, the 4th determining unit 318, the 6th regulon 319 and the 5th determining unit 320.
3rd measuring unit 307, for measure display screen when under prime reference voltage when prime flicker value.
In the embodiment of the present invention, after measuring higher level's flicker value of TFT-LCD under higher level's reference voltage, 3rd measuring unit 307 measure display screen when under prime reference voltage when prime flicker value, first the embodiment of the present invention adds up the mean value of the target reference voltage of the TFT-LCD of some, as initial reference voltage, can using this initial reference voltage as higher level's reference voltage, then under this initial reference voltage, measure the flicker value of TFT-LCD, because the target reference voltage difference of each TFT-LCD is little, and the flicker value of each TFT-LCD is with a change curve picture bowl-type of reference voltage, only need by the increase of this initial reference voltage or after reducing certain numerical value, remeasure the flicker value of TFT-LCD, until the reference voltage that the minimum flicker value finding out TFT-LCD is corresponding.The embodiment of the present invention is when producing TFT-LCD in batches, the target reference voltage that the minimum flicker value of each TFT-LCD is corresponding can be found out fast, make every block TFT-LCD flicker value operationally minimum, display effect is best, thus improves the display effect of display screen.
3rd judging unit 308, for judging whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is heightened by predetermined amount and obtained when prime reference voltage.
In the embodiment of the present invention, 3rd judging unit 308 judges that when whether prime flicker value is less than higher level's flicker value be to determine whether higher level's reference voltage is target reference voltage, if when prime flicker value is less than higher level's flicker value, then higher level's reference voltage is not target reference voltage, if when prime flicker value is greater than higher level's flicker value, then higher level's flicker value may be target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is not initial reference voltage, then higher level's reference voltage is target reference voltage, when higher level's reference voltage that higher level's flicker value is corresponding is initial reference voltage, then initial reference voltage differs and is decided to be target reference voltage, also need further to adjust initial reference voltage, continue to find target reference voltage.
Second regulon 309, for when being less than higher level's flicker value when prime flicker value, heightens when prime reference voltage by predetermined amount, obtains subordinate reference voltage.
In the embodiment of the present invention, 3rd measuring unit 307 measure display screen when under prime reference voltage after prime flicker value, if when prime flicker value is less than higher level's flicker value, the second regulon 309 is heightened when prime reference voltage by predetermined amount, obtain subordinate reference voltage.Wherein, predetermined amount can be arranged as required, and predetermined amount arranges less, and computing velocity is slower, and the target voltage determined is more accurate, and predetermined amount arranges larger, and computing velocity is faster, and the target voltage determined gets over out of true.In the embodiment of the present invention, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount, if when prime flicker value is less than higher level's flicker value, show when prime reference voltage is closer to target reference voltage.
4th measuring unit 310, for measuring the subordinate flicker value of display screen under subordinate reference voltage.
In the embodiment of the present invention, subordinate reference voltage heightens acquisition by predetermined amount on the basis when prime reference voltage.
4th judging unit 311, for judging whether subordinate's flicker value is less than when prime flicker value.
In the embodiment of the present invention, 4th judging unit 311 judge subordinate's flicker value whether be less than when prime flicker value be in order to determine when prime flicker value corresponding when prime reference voltage whether be target reference voltage, if subordinate's flicker value is greater than when prime flicker value, then determine when prime reference voltage is target reference voltage, if subordinate's flicker value is less than when prime flicker value, then also need to heighten subordinate reference voltage further, continue to find target reference voltage.
Second determining unit 312, for being greater than when subordinate's flicker value when prime flicker value, will working as prime reference voltage and being defined as target reference voltage.
In the embodiment of the present invention, when subordinate's flicker value is greater than when prime flicker value, because higher level's flicker value is greater than when prime flicker value, known when prime flicker value minimum, the second determining unit 312 will be worked as prime reference voltage and be defined as target reference voltage.
5th measuring unit 313, for measuring the target reference voltage of the display screen of predetermined number respectively.
In the embodiment of the present invention, the target reference voltage that the 5th measuring unit 313 measures the display screen of predetermined number is respectively that predetermined number is larger, and initial reference voltage more approaches target reference voltage in order to obtain initial reference voltage accurately.Here predetermined number can be set to 100, also can be set to 50,150,200 etc.
In the device determining display screen reference voltage shown in Fig. 4, the 5th measuring unit 313 can comprise with lower unit:
First measures subelement 3131, and for measuring the flicker value of display screen under each predeterminated voltage of predetermined number respectively, each predeterminated voltage is voltage value predetermined voltage range equal portions being divided into each cut-point after default number;
First determines subelement 3132, for determining the predeterminated voltage that flicker value minimum in the flicker value of the display screen of predetermined number under each predeterminated voltage is corresponding respectively, predeterminated voltage is set to the target reference voltage of the display screen of predetermined number.
In the embodiment of the present invention, for example, if predetermined number is 100, predetermined voltage range is 0-12V, a magnitude of voltage is got every 0.001V, first measures subelement 3131 measures each display screen respectively at 0.001V, 0.002V, 0.003V ... .11.998V the flicker value, under 11.999V and 12.000V, first determines that the target reference voltage that the minimum flicker value of each display screen is corresponding determined respectively by subelement 3132.
3rd determining unit 314, for calculating the mean value of the target reference voltage of the display screen of predetermined number, determine that the mean value of the target reference voltage of the display screen of predetermined number is initial reference voltage, using initial reference voltage as higher level's reference voltage, and trigger the first measuring unit 301 or the 3rd measuring unit 307.
In the embodiment of the present invention, such as, when predetermined number is 100,3rd determining unit 314 calculates the mean value of the target reference voltage of 100 display screens, using this mean value as initial reference voltage, this initial voltage higher level's reference voltage be can be set to, and the first measuring unit 301 or the 3rd measuring unit 307 triggered.
3rd regulon 315, for being less than when subordinate's flicker value when prime flicker value, turning down subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, and triggering the first measuring unit 301.
In the embodiment of the present invention, if subordinate's flicker value is less than when prime flicker value, show that this subordinate's flicker value is closer to target reference voltage, 3rd regulon 315 turns down subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, and triggers the first measuring unit 301.
4th regulon 316, for being less than when subordinate's flicker value when prime flicker value, heightening subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, and triggering the 3rd measuring unit 307.
In the embodiment of the present invention, if subordinate's flicker value is less than when prime flicker value, show that this subordinate's flicker value is closer to target reference voltage, 4th regulon 316 heightens subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, and triggers the 3rd measuring unit 307.
5th regulon 317, for when being greater than higher level's flicker value when prime flicker value and reference voltage corresponding to higher level's flicker value is initial reference voltage, heighten initial reference voltage by predetermined amount, obtain new working as prime reference voltage and trigger the 3rd measuring unit 307; Higher level's flicker value measures the flicker value of display screen under initial reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount.
In the embodiment of the present invention, if when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, show that initial reference voltage is closer to target reference voltage, initial reference voltage heightened by 5th regulon 317, and work as prime reference voltage as new, and trigger the 3rd measuring unit 307.
4th determining unit 318, for when be greater than higher level's flicker value when prime flicker value and reference voltage corresponding to higher level's flicker value for initial reference voltage time, reference voltage corresponding for higher level's flicker value is defined as target reference voltage; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount.
In the embodiment of the present invention, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, higher level's reference voltage is that the reference voltage of the previous stage of higher level's reference voltage turns down acquisition by predetermined amount, and when prime flicker value is greater than higher level's flicker value, show that higher level's flicker value is minimum, higher level's reference voltage corresponding for higher level's flicker value is defined as target reference voltage by the 4th determining unit 318.
6th regulon 319, for when being greater than higher level's flicker value when prime flicker value and reference voltage corresponding to higher level's flicker value is initial reference voltage, turn down initial reference voltage by predetermined amount, obtain new working as prime reference voltage and trigger the first measuring unit 301; Higher level's flicker value measures the flicker value of display screen under initial reference voltage, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount.
In the embodiment of the present invention, if when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, show that initial reference voltage is closer to target reference voltage, initial reference voltage turned down by 6th regulon 319, and work as prime reference voltage as new, and trigger the first measuring unit 301.
5th determining unit 320, for when be greater than higher level's flicker value when prime flicker value and reference voltage corresponding to higher level's flicker value for initial reference voltage time, reference voltage corresponding for higher level's flicker value is defined as target reference voltage; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount.
In the embodiment of the present invention, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, higher level's reference voltage is that the reference voltage of the previous stage of higher level's reference voltage turns down acquisition by predetermined amount, and when prime flicker value is greater than higher level's flicker value, show that higher level's flicker value is minimum, higher level's reference voltage corresponding for higher level's flicker value is defined as target reference voltage by the 5th determining unit 320.
At Fig. 3, in the device of the determination display screen reference voltage described by Fig. 4, first measuring unit measure display screen when under prime reference voltage when prime flicker value, first judging unit judges whether be less than higher level's flicker value when prime flicker value, higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, higher level's reference voltage is turned down by predetermined amount and is obtained when prime reference voltage, when being less than higher level's flicker value when prime flicker value, first regulon is turned down when prime reference voltage by predetermined amount, obtain subordinate reference voltage, second measuring unit measures the subordinate flicker value of display screen under subordinate reference voltage, second judging unit judges whether subordinate's flicker value is less than when prime flicker value, when subordinate's flicker value is greater than when prime flicker value, first determining unit will be worked as prime reference voltage and be defined as target reference voltage.Visible, the device of the determination display screen reference voltage described by Fig. 3, Fig. 4 can determine target reference voltage fast, and the flicker value that display screen is worked under target reference voltage is minimum, and display effect is best, thus improves the display effect of display screen.
Refer to Fig. 5, Fig. 5 provide for the embodiment of the present invention another determine the structural representation of the device of display screen reference voltage, as shown in Figure 5, this device can comprise: at least one processor 410, such as CPU, storer 420, measurement mechanism 430 and at least one communication bus 440.Wherein, communication bus 440 is for realizing the communication connection between these assemblies.Storer 420 can be high-speed RAM storer, also can be non-labile storer (non-volatile memory), such as at least one magnetic disk memory.Storer 420 can also be optionally that at least one is positioned at the memory storage away from aforementioned processor 410.Wherein, processor 410 can composition graphs 3 and the terminal described by Fig. 4, stores batch processing code in storer 420, and processor 410 calls the program code stored in storer 420.Wherein:
Communication bus 440, for realizing the connection communication between these assemblies;
Store batch processing code in storer 420, and processor 410 calls the program code stored in storer 420, for performing following operation:
A1, control and measure device 430 measure display screen when under prime reference voltage when prime flicker value;
B1, judges whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is turned down by predetermined amount and obtained when prime reference voltage;
C1, if when prime flicker value is less than higher level's flicker value, turn down when prime reference voltage by predetermined amount, obtains subordinate reference voltage;
D1, control and measure device 430 measures the subordinate flicker value of display screen under subordinate reference voltage;
E1, judges whether subordinate's flicker value is less than when prime flicker value;
F1, if subordinate's flicker value is greater than when prime flicker value, will works as prime reference voltage and be defined as target reference voltage.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, can also perform following operation:
A2, control and measure device 430 measure display screen when under prime reference voltage when prime flicker value;
B2, judges whether be less than higher level's flicker value when prime flicker value; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, and higher level's reference voltage is heightened by predetermined amount and obtained when prime reference voltage;
C2, heightens when prime reference voltage by predetermined amount, obtains subordinate reference voltage;
D2, control and measure device 430 measures the subordinate flicker value of display screen under subordinate reference voltage;
E2, judges whether subordinate's flicker value is less than when prime flicker value;
F2, if subordinate's flicker value is greater than when prime flicker value, will works as prime reference voltage and be defined as target reference voltage.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, control and measure device 430 measure display screen when under prime reference voltage before the prime flicker value, following operation can also be performed:
Control and measure device 430 measures the target reference voltage of the display screen of predetermined number respectively;
Calculate the mean value of the target reference voltage of the display screen of predetermined number, determine that the mean value of the target reference voltage of the display screen of predetermined number is initial reference voltage, using initial reference voltage as higher level's reference voltage.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, after execution step e 1, can also perform following operation:
If subordinate's flicker value is less than when prime flicker value, turns down subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, return and perform steps A 1.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, after execution step e 2, can also perform following operation:
If subordinate's flicker value is less than when prime flicker value, heightens subordinate reference voltage as new when prime reference voltage as new higher level's reference voltage by predetermined amount using when prime reference voltage, return and perform steps A 2.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, after execution step B1, can also perform following operation:
If when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, heighten initial reference voltage by predetermined amount, obtain new working as prime reference voltage and return and perform steps A 2; Higher level's flicker value measures the flicker value of display screen under initial reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, after execution step B1, can also perform following operation:
If when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, reference voltage corresponding for higher level's flicker value is defined as target reference voltage; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage turns down acquisition by predetermined amount.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, after execution step B2, can also perform following operation:
If when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is initial reference voltage, turn down initial reference voltage by predetermined amount, obtain new working as prime reference voltage and return and perform steps A 1; Higher level's flicker value measures the flicker value of display screen under initial reference voltage, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount.
In the embodiment of the present invention, processor 410 calls the program code in storer 420, after execution step B2, can also perform following operation:
If when prime flicker value is greater than higher level's flicker value, when the reference voltage that higher level's flicker value is corresponding is not initial reference voltage, reference voltage corresponding for higher level's flicker value is defined as target reference voltage; Higher level's flicker value measures the flicker value of display screen under higher level's reference voltage, when prime reference voltage is that higher level's reference voltage heightens acquisition by predetermined amount.
Concrete, the device introduced in the present embodiment can implement the part or all of flow process in the embodiment of the method for the determination display screen reference voltage that composition graphs 1 to Fig. 2 of the present invention introduces.
Step in embodiment of the present invention method can be carried out order according to actual needs and be adjusted, merges and delete.
Unit in embodiment of the present invention terminal or equipment or subelement can carry out merging, divide and deleting according to actual needs.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment can carry out the device-dependent hardware of command terminal by program to have come, this program can be stored in a computer-readable recording medium, storage medium can comprise: flash disk, ROM (read-only memory) (Read-OnlyMemory, ROM), random access device (Random Access Memory, RAM), disk or CD etc.
A kind ofly determine that the method for display screen reference voltage is described in detail to embodiments providing above, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. determine a method for display screen reference voltage, it is characterized in that, comprising:
Measure display screen when under prime reference voltage when prime flicker value;
Judge whether described prime flicker value of working as is less than higher level's flicker value; Described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, and it is described when prime reference voltage that described higher level's reference voltage turns down acquisition by described predetermined amount;
Work as prime flicker value if described and be less than described higher level's flicker value, turn down by described predetermined amount described when prime reference voltage, obtain subordinate reference voltage;
Measure the subordinate flicker value of described display screen under described subordinate reference voltage;
Judge whether described subordinate flicker value is less than described when prime flicker value; Described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as turns down the described subordinate reference voltage of acquisition by described predetermined amount;
If described subordinate flicker value is greater than described when prime flicker value, described prime reference voltage of working as is defined as target reference voltage.
2. method according to claim 1, is characterized in that, described method also comprises:
Measure display screen when under prime reference voltage when prime flicker value;
Judge whether described prime flicker value of working as is less than higher level's flicker value; Described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, and it is described when prime reference voltage that described higher level's reference voltage heightens acquisition by described predetermined amount;
Work as prime flicker value if described and be less than described higher level's flicker value, heighten by described predetermined amount described when prime reference voltage, obtain subordinate reference voltage;
Measure the subordinate flicker value of described display screen under described subordinate reference voltage;
Judge whether described subordinate flicker value is less than described when prime flicker value; Described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as heightens the described subordinate reference voltage of acquisition by described predetermined amount;
If described subordinate flicker value is greater than described when prime flicker value, described prime reference voltage of working as is defined as target reference voltage.
3. method according to claim 1 and 2, is characterized in that, perform described measurement display screen when under prime reference voltage when prime flicker value step before, described method also comprises:
Measure the target reference voltage of the display screen of predetermined number respectively;
Calculate the mean value of the target reference voltage of the display screen of described predetermined number, determine that the mean value of the target reference voltage of the display screen of described predetermined number is initial reference voltage, using described initial reference voltage as described higher level's reference voltage, return the described measurement display screen of execution and working as the step when prime flicker value under prime reference voltage.
4. method according to claim 3, is characterized in that, the described target reference voltage measuring the display screen of predetermined number respectively comprises:
Measure the flicker value of display screen under each predeterminated voltage of described predetermined number respectively, described each predeterminated voltage is voltage value predetermined voltage range equal portions being divided into each cut-point after default number;
Determine respectively described predeterminated voltage to be set to the target reference voltage of the display screen of described predetermined number by the predeterminated voltage that flicker value minimum in the flicker value of the display screen of described predetermined number under described each predeterminated voltage is corresponding.
5. method according to claim 3, it is characterized in that, in execution, described to judge whether described subordinate flicker value is less than described after the step of prime flicker value, wherein, described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, described prime reference voltage of working as turns down the described subordinate reference voltage of acquisition by described predetermined amount, and described method also comprises:
If described subordinate flicker value is less than described when prime flicker value, described subordinate reference voltage is turned down as new when prime reference voltage as new higher level's reference voltage by described predetermined amount when prime reference voltage using described, return the described measurement display screen of execution and work as the step when prime flicker value under prime reference voltage, wherein, described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as turns down the described subordinate reference voltage of acquisition by described predetermined amount.
6. method according to claim 3, it is characterized in that, in execution, described to judge whether described subordinate flicker value is less than described after the step of prime flicker value, wherein, described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, described prime reference voltage of working as heightens the described subordinate reference voltage of acquisition by described predetermined amount, and described method also comprises:
If described subordinate flicker value is less than described when prime flicker value, described subordinate reference voltage is heightened as new when prime reference voltage as new higher level's reference voltage by described predetermined amount when prime reference voltage using described, return the described measurement display screen of execution and work as the step when prime flicker value under prime reference voltage, wherein, described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as heightens the described subordinate reference voltage of acquisition by described predetermined amount.
7. method according to claim 5, it is characterized in that, described in the described judgement of execution after whether prime flicker value is less than the step of higher level's flicker value, wherein, described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, it is described when prime reference voltage that described higher level's reference voltage turns down acquisition by described predetermined amount, and described method also comprises:
Work as prime flicker value if described and be greater than described higher level's flicker value, when the reference voltage that described higher level's flicker value is corresponding is described initial reference voltage, described initial reference voltage is heightened by predetermined amount, obtain new working as prime reference voltage and return the described measurement display screen of execution and work as the step when prime flicker value under prime reference voltage, wherein, described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as heightens the described subordinate reference voltage of acquisition by described predetermined amount; Described higher level's flicker value measures the flicker value of described display screen under described initial reference voltage, described when prime reference voltage be that described higher level's reference voltage turns down acquisition by described predetermined amount.
8. method according to claim 7, it is characterized in that, described in the described judgement of execution after whether prime flicker value is less than the step of higher level's flicker value, wherein, described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, it is described when prime reference voltage that described higher level's reference voltage turns down acquisition by described predetermined amount, and described method also comprises:
Work as prime flicker value if described and be greater than described higher level's flicker value, when the reference voltage that described higher level's flicker value is corresponding is not described initial reference voltage, reference voltage corresponding for described higher level's flicker value is defined as target reference voltage; Described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, described when prime reference voltage be that described higher level's reference voltage turns down acquisition by described predetermined amount.
9. method according to claim 6, it is characterized in that, described in the described judgement of execution after whether prime flicker value is less than the step of higher level's flicker value, wherein, described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, it is described when prime reference voltage that described higher level's reference voltage heightens acquisition by described predetermined amount, and described method also comprises:
Work as prime flicker value if described and be greater than described higher level's flicker value, when the reference voltage that described higher level's flicker value is corresponding is described initial reference voltage, described initial reference voltage is turned down by predetermined amount, obtain new working as prime reference voltage and return the described measurement display screen of execution and work as the step when prime flicker value under prime reference voltage, wherein, described prime flicker value of working as measures described display screen to work as the flicker value under prime reference voltage, and described prime reference voltage of working as turns down the described subordinate reference voltage of acquisition by described predetermined amount; Described higher level's flicker value measures the flicker value of described display screen under described initial reference voltage, described when prime reference voltage be that described higher level's reference voltage heightens acquisition by described predetermined amount.
10. method according to claim 9, it is characterized in that, described in the described judgement of execution after whether prime flicker value is less than the step of higher level's flicker value, wherein, described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, it is described when prime reference voltage that described higher level's reference voltage heightens acquisition by described predetermined amount, and described method also comprises:
Work as prime flicker value if described and be greater than described higher level's flicker value, when the reference voltage that described higher level's flicker value is corresponding is not described initial reference voltage, reference voltage corresponding for described higher level's flicker value is defined as target reference voltage; Described higher level's flicker value measures the flicker value of described display screen under higher level's reference voltage, described when prime reference voltage be that described higher level's reference voltage heightens acquisition by described predetermined amount.
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| CN104517554A (en) * | 2014-12-17 | 2015-04-15 | 武汉精测电子技术股份有限公司 | Vcom (voltage of common electrode) adjustment device and method of MIPI (mobile industry processor interface) liquid crystal module on basis of FPGA (field programmable gate array) |
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| CN106448520A (en) * | 2016-08-16 | 2017-02-22 | 深圳天珑无线科技有限公司 | Regulating method and device of Vcom value of liquid crystal display screen and liquid crystal display screen |
| CN112102769A (en) * | 2020-10-28 | 2020-12-18 | 业成科技（成都）有限公司 | Display screen common voltage adjusting method and device, computer equipment and storage medium |
| CN114203125A (en) * | 2021-12-07 | 2022-03-18 | 昆山龙腾光电股份有限公司 | Method and device for acquiring common voltage and computer storage medium |
| CN114203125B (en) * | 2021-12-07 | 2023-02-24 | 昆山龙腾光电股份有限公司 | Method and device for acquiring common voltage and computer storage medium |
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