CN105185340A - Common voltage adjustment device and method - Google Patents
Common voltage adjustment device and method Download PDFInfo
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- CN105185340A CN105185340A CN201510648890.1A CN201510648890A CN105185340A CN 105185340 A CN105185340 A CN 105185340A CN 201510648890 A CN201510648890 A CN 201510648890A CN 105185340 A CN105185340 A CN 105185340A
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Abstract
The invention discloses a common voltage adjustment device and method. The device comprises a control device, and a scintillation detection device and a lighting device which are both in connection with the control device. The lighting device is used for controlling the lighting of a liquid crystal screen according to the test picture provided by the control device and an initial common voltage, and controls the liquid crystal screen to display the test picture under all common voltages to be tested according to all the common voltages to be tested provided by the control device after the liquid crystal screen is lightened for a preset period of time under the initial common voltage; the scintillation detection device is used for detecting all scintillation degrees of the liquid crystal screen when the liquid crystal screen displays the test picture under the initial common voltage and each common voltage to be tested; the control device is used for determining the optimum common voltage of the liquid crystal screen according to all obtained better common voltages. The common voltage adjustment device and method make common voltage adjustment more accurate, have the characteristics of simple operation and lower cost, and improve the common voltage adjustment efficiency.
Description
Technical field
The present invention relates to display technique field, particularly a kind of common electric voltage debugging apparatus and method.
Background technology
The advantage such as liquid crystal indicator (LiquidCrystalDisplay, LCD) has that image quality is good, volume is little, lightweight, low driving voltage, low-power consumption, radiationless and manufacturing cost are relatively low, occupies an leading position in flat display field at present.It is widely used in the multiple office automations such as desk-top computer, palmtop computer, personal digital assistant (PersonalDigitalAssistant, PDA), portable phone, TV box and audio-visual equipment.
Liquid crystal indicator comprises array base palte, colored optical filtering substrates, is folded in liquid crystal layer between array base palte and colored optical filtering substrates, during liquid crystal indicator work, respectively load driver voltage and common electric voltage to pixel electrode and public electrode to produce electric field between liquid crystal layer, the yawing moment of liquid crystal molecule can change along with the difference of loaded driving voltage and common electric voltage, thus the light percent of pass controlled by liquid crystal layer, and then the brightness of each pixel cell of control liquid crystal indicator.
In the liquid crystal indicator course of work, polarity switching due to common electric voltage can cause display panels to occur image residue (ImageStacking) phenomenon, i.e. scintillation, and scintillation serious time, not only have a strong impact on the display effect of liquid crystal indicator, but also visual fatigue and other discomfort of observer can be caused, and by adjustment common electric voltage, can the flicker level of liquid crystal indicator be adjusted to minimum, thus make the display effect of liquid crystal indicator reach best.So must common electric voltage be debugged before dispatching from the factory, and measure according to the flicker level of common electric voltage to liquid crystal indicator of debugging, make the flicker level of picture drop to minimum value, improve viewing effect.
Existing common electric voltage adjustment method is mostly the best common electric voltage that employing manual type debugs out in a period of time, its concrete grammar is the artificial liquid crystal display common electric voltage of required debugging being supplied to liquid crystal indicator, and measure a flicker value successively, get common electric voltage that wherein minimum flicker level is corresponding in all flicker value as best common electric voltage, ensure that liquid crystal indicator is in the object of minimum flicker level to reach.Above-mentioned manual debugging method, exist because of the individual difference such as artificial experience and skill level, can cause data misregister unavoidably, the accuracy causing common electric voltage to debug is lower.And in debug process, liquid crystal indicator quantity can be many, and also need the common electric voltage of non-volatile recording liquid crystal indicator, the human and material resources of at substantial and time, debugging efficiency is very low.
Summary of the invention
The invention provides a kind of common electric voltage debugging apparatus and method, simple to operate, accuracy is high and can greatly raise the efficiency.
Described technical scheme is as follows:
Embodiments provide a kind of common electric voltage debugging apparatus, it comprises: control device, the flicker degree arrangement for detecting be connected with described control device and ignition device, described ignition device is used for the test pictures that provides according to described control device and initial common electric voltage controls to light liquid crystal display, under described initial common electric voltage, test pictures is shown to make described liquid crystal display, and after under described initial common electric voltage, described liquid crystal display lights default a period of time, the common electric voltage all to be tested provided according to described control device controls described liquid crystal display and show test pictures under all common electric voltage to be tested, all flicker level of detecting for detecting all flicker level of described liquid crystal display under initial common electric voltage and each common electric voltage to be tested during described liquid crystal display display test pictures, and are supplied to described control device by described flicker degree arrangement for detecting, described control device is used for described test pictures and described initial common electric voltage to be supplied to described ignition device, and record described liquid crystal display lighting time, multiple first common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under described initial common electric voltage, the first better common electric voltage is obtained according to all flicker level that described first common electric voltage to be tested and flicker degree arrangement for detecting provide, multiple second common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the first better common electric voltage, the second better common electric voltage is obtained according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, the n-th better common electric voltage is obtained according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of described liquid crystal display is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
In preferred embodiment of the present invention, described control device, also for multiple first common electric voltages to be tested produced are supplied to described ignition device, described ignition device controls described liquid crystal display according to multiple first common electric voltages to be tested that control device provides and show test pictures under the first common electric voltage to be tested, described control device and the display of described liquid crystal display under each the first common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain the first common electric voltage to be tested corresponding to wherein minimum flicker level as the first better common electric voltage.
In preferred embodiment of the present invention, described control device, also for multiple second common electric voltages to be tested produced are supplied to described ignition device, described ignition device controls described liquid crystal display according to multiple second common electric voltages to be tested that described control device provides and show test pictures under the second common electric voltage to be tested, described control device and the display of described liquid crystal display under each the second common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain the second common electric voltage to be tested corresponding to wherein minimum flicker level as the second better common electric voltage.
In preferred embodiment of the present invention, described control device, also for drawing better common electric voltage and the relation curve of time according to the better common electric voltage of the first better common electric voltage to the n-th obtained, and determine the best common electric voltage of described liquid crystal display according to described better common electric voltage and the relation curve of time.
In preferred embodiment of the present invention, described control device, also for determining that the best common electric voltage of described liquid crystal display is the mean value of maximal value in the first to the n-th better common electric voltage and minimum value; Or calculate the mean value of all better common electric voltages, the best common electric voltage of described liquid crystal display is the mean value of all better common electric voltages; Or the maximal and minmal value removed in better common electric voltage, the best common electric voltage of described liquid crystal display is the mean value removing remaining better common electric voltage after the maximal and minmal value in better common electric voltage.
In preferred embodiment of the present invention, described initial common electric voltage is initial better common electric voltage, then described control device is also for after being supplied to described ignition device by described test pictures and described initial common electric voltage, produce multiple initial common electric voltage to be tested, and the multiple initial common electric voltage to be tested produced is supplied to described ignition device, described ignition device controls described liquid crystal display according to the multiple initial common electric voltage to be tested that described control device provides and show test pictures under initial common electric voltage to be tested, described control device and the display of described liquid crystal display under each the initial common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain common electric voltage initial to be tested that wherein minimum flicker level is corresponding as initial better common electric voltage.
The embodiment of the present invention additionally provides a kind of common electric voltage adjustment method, comprising: test pictures and initial common electric voltage are supplied to ignition device by control device, and record liquid crystal display lighting time; The test pictures that described ignition device provides according to described control device and initial common electric voltage control to light liquid crystal display, to make described liquid crystal display show test pictures under described initial common electric voltage; Flicker degree arrangement for detecting detects all flicker level of described liquid crystal display under initial common electric voltage and each common electric voltage to be tested during described liquid crystal display display test pictures, and all flicker level of detecting are supplied to described control device; described control device produces multiple first common electric voltage to be tested after described liquid crystal display lights default a period of time under described initial common electric voltage, and the first common electric voltage to be tested produced is supplied to ignition device, described ignition device controls described liquid crystal display according to multiple first common electric voltages to be tested that described control device provides and show test pictures under the first common electric voltage to be tested, all flicker level during the display of liquid crystal display under each the first common electric voltage to be tested test pictures that described control device provides according to described first common electric voltage to be tested and flicker degree arrangement for detecting obtain the first better common electric voltage, multiple second common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the first better common electric voltage, multiple second common electric voltages to be tested produced are supplied to described ignition device, described ignition device controls described liquid crystal display according to multiple second common electric voltages to be tested that described control device provides and show test pictures under the second common electric voltage to be tested, described control device obtains the second better common electric voltage according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, described control device obtains the n-th better common electric voltage according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of described liquid crystal display is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By control device, test pictures and initial common electric voltage are supplied to ignition device, and record liquid crystal display lighting time, under initial common electric voltage, liquid crystal display produces multiple first common electric voltage to be tested after lighting default a period of time, the first better common electric voltage is obtained according to all flicker level that the first common electric voltage to be tested and flicker degree arrangement for detecting provide, multiple second common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the first better common electric voltage, the second better common electric voltage is obtained according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, the n-th better common electric voltage is obtained according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of liquid crystal display is determined according to all better common electric voltage obtained.Thus can automatically regulate common electric voltage to make flicker level minimum, avoid the error manually adjusting and bring, also make common electric voltage debug more accurate, simple to operate, cost is lower, and improves the debugging efficiency of common electric voltage.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the common electric voltage debugging apparatus main frame block diagram that first embodiment of the invention provides;
Fig. 2 is the graph of relation of better common electric voltage and time;
Fig. 3 is the flow chart of steps of the common electric voltage adjustment method that second embodiment of the invention provides;
Fig. 4 is the flow chart of steps of the common electric voltage adjustment method that third embodiment of the invention provides.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to the common electric voltage debugging apparatus proposed according to the present invention and its embodiment of method, structure, feature and effect, be described in detail as follows.
Aforementioned and other technology contents, Characteristic for the present invention, can clearly present in following cooperation describes in detail with reference to graphic preferred embodiment.By the explanation of embodiment, when can to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, however institute's accompanying drawings be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
First embodiment
Fig. 1 is the main frame block diagram of the common electric voltage debugging apparatus that first embodiment of the invention provides.Fig. 2 is the graph of relation of better common electric voltage and time.Please refer to Fig. 1 and Fig. 2, described common electric voltage debugging apparatus, comprising: control device 11, the flicker degree arrangement for detecting 13 be connected with control device 11 and ignition device 15.Flicker degree arrangement for detecting 13 is connected with liquid crystal display 17 with ignition device 15.
Ignition device 15, control to light liquid crystal display 17 for the test pictures that provides according to control device 11 and initial common electric voltage, under initial common electric voltage, test pictures is shown to make liquid crystal display 17, and after liquid crystal display 17 lights default a period of time under initial common electric voltage, under all common electric voltages to be tested, show test pictures according to the common electric voltage control liquid crystal display 17 all to be tested that control device 11 provides.Particularly, ignition device 15 is for after under initial common electric voltage, liquid crystal display 17 lights default a period of time, under the first common electric voltage to be tested, test pictures is shown according to multiple first common electric voltages control liquid crystal displays 17 to be tested that control device 11 provides, and after under the first better common electric voltage, liquid crystal display 17 lights default a period of time, under the second common electric voltage to be tested, test pictures is shown according to multiple second common electric voltages control liquid crystal displays 17 to be tested that control device 11 provides, the like, after under the (n-1)th better common electric voltage, liquid crystal display 17 lights default a period of time, under the n-th common electric voltage to be tested, test pictures is shown according to multiple n-th common electric voltages control liquid crystal displays 17 to be tested that control device 11 provides, wherein, the detail of common electric voltage to be tested refers to following description.
All flicker level of detecting for detecting all flicker level when liquid crystal display 17 liquid crystal display 17 under initial common electric voltage and each common electric voltage to be tested shows test pictures, and are supplied to control device 11 by flicker degree arrangement for detecting 13.
Wherein, flicker degree arrangement for detecting 13 can be the equipment such as optical sensor, and it can sense the flicker level of liquid crystal display 17 after start is lighted under different common voltage driving.The grey-scale range of liquid crystal indicator is 0-255, can debug in the embodiment of the present invention under any GTG to the common electric voltage of liquid crystal display 17.
Control device 11, for test pictures and initial common electric voltage are supplied to ignition device 15, and record liquid crystal display 17 lighting time, after under initial common electric voltage, liquid crystal display 17 lights default a period of time, (such as 0.5 hour) produces multiple first common electric voltage to be tested, all flicker level during the display of liquid crystal display under each the first common electric voltage to be tested test pictures provided according to the first common electric voltage to be tested and flicker degree arrangement for detecting obtain the first better common electric voltage, multiple second common electric voltage to be tested is produced after liquid crystal display 17 lights default a period of time under the first better common electric voltage, all flicker level during the display of liquid crystal display under each the second common electric voltage to be tested test pictures provided according to the second common electric voltage to be tested and flicker degree arrangement for detecting obtain the second better common electric voltage, the like, multiple (n-1)th common electric voltage to be tested is produced after liquid crystal display 17 lights default a period of time under the (n-1)th better common electric voltage, all flicker level during the display of liquid crystal display under each the (n-1)th common electric voltage to be tested test pictures provided according to the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting obtain the n-th better common electric voltage, and the best common electric voltage of liquid crystal display 17 is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
Wherein, namely control device 11 can record the lighting time of liquid crystal display 17 after test pictures and initial common electric voltage are supplied to ignition device 15, and as starting the electric bright time between inciting somebody to action now.In addition, the process obtaining the first better common electric voltage is: control device 11 is also for being supplied to ignition device 15 by multiple first common electric voltages to be tested produced, ignition device 15 controls liquid crystal display 17 according to multiple first common electric voltages to be tested that control device 11 provides and show test pictures under the first common electric voltage to be tested, control device 11 all flicker level when showing test pictures according to the liquid crystal display 17 under each first common electric voltage to be tested that flicker degree arrangement for detecting 13 provides, and in all flicker level, obtain the first common electric voltage to be tested corresponding to wherein minimum flicker level as the first better common electric voltage.Wherein, by obtaining flicker level successively under the first common electric voltage to be tested, the corresponding to minimum flicker level first common electric voltage to be tested can so be found.
Wherein, the process obtaining the second better common electric voltage is: control device 11 is also for being supplied to ignition device 15 by multiple second common electric voltages to be tested produced, ignition device 15 controls liquid crystal display 17 according to multiple second common electric voltages to be tested that control device 11 provides and show test pictures under the second common electric voltage to be tested, control device 11 all flicker level when showing test pictures according to the liquid crystal display 17 under each second common electric voltage to be tested that flicker degree arrangement for detecting 13 provides, and in all flicker level, obtain the second common electric voltage to be tested corresponding to wherein minimum flicker level as the second better common electric voltage.
The process obtaining the n-th better common electric voltage according to the cyclic process obtaining the first better common electric voltage and the second better common electric voltage is successively: control device 11 is also for after under the (n-1)th better common electric voltage, liquid crystal display 17 lights default a period of time, produce multiple n-th common electric voltage to be tested, and multiple n-th common electric voltages to be tested produced are supplied to ignition device 15, ignition device 15 controls liquid crystal display 17 according to multiple n-th common electric voltages to be tested that control device 11 provides and show test pictures under the n-th common electric voltage to be tested, control device 11 all flicker level when showing test pictures according to the liquid crystal display 17 under each n-th common electric voltage to be tested that flicker degree arrangement for detecting 13 provides, and in all flicker level, obtain common electric voltage that wherein minimum flicker level is corresponding as the n-th better common electric voltage.
Further, the all better common electric voltage that above-mentioned basis obtains determines the best common electric voltage of liquid crystal display 17, specifically comprise: control device 11 also for drawing better common electric voltage and the relation curve of time according to the better common electric voltage of the first better common electric voltage to the n-th obtained, and determines the best common electric voltage of liquid crystal display 17 according to better common electric voltage and the relation curve of time.
In the present embodiment, because control device 11 corresponding common electric voltage when default a period of time acquisition liquid crystal display 11 flicker level is minimum is the better common electric voltage in this period.Control device 11 with default a period of time be 0.5 hour for measuring point, the logging interval better common electric voltage of 0.5 hour successively, till being recorded to the default time (such as, the time of presetting is 12 hours lighting time), record 24 better common electric voltage change points altogether, with the time point of the better common electric voltage recorded for X-axis, with better common electric voltage value for Y-axis, thus the relation curve of better common electric voltage and time can be depicted as, as shown in Figure 2.
Further, after control device 11 determines the best common electric voltage of liquid crystal display 17 according to better common electric voltage and the relation curve of time, best common electric voltage can be entered liquid crystal display 17 by ignition device 15 burning, and liquid crystal display 17 lighting is confirmed, to determine the correctness of determined best common electric voltage further.
Further, control device 11 determines the best common electric voltage of liquid crystal display 17 according to better common electric voltage and the relation curve of time, specifically comprise: control device 11, also for determining that the best common electric voltage of liquid crystal display 17 can be the mean value of maximal value in the first to the n-th better common electric voltage and minimum value; Or
Calculate the mean value of all better common electric voltages, the best common electric voltage of liquid crystal display 17 can be the mean value of all better common electric voltages; Or
Remove the maximal and minmal value in better common electric voltage, the best common electric voltage of liquid crystal display 17 is the mean value removing remaining better common electric voltage after the maximal and minmal value in better common electric voltage.
Wherein, control device 11 can be the opertaing devices such as computer.Test pictures can be such as gridiron pattern picture.Be automatically regulate common electric voltage value according to particular step size when producing common electric voltage to be tested, namely next common electric voltage to be tested and current common electric voltage have particular step size, and such as step-length is 0.1 volt and waits numerical value.
Further, initial common electric voltage is initial better common electric voltage, then control device 11 is also for after being supplied to ignition device 15 by test pictures and initial common electric voltage, produce multiple initial common electric voltage to be tested, and the multiple initial common electric voltage to be tested produced is supplied to ignition device 15, ignition device 15 controls liquid crystal display 17 according to the common electric voltage multiple initial to be tested that control device 11 provides and show test pictures under initial common electric voltage to be tested, control device 11 all flicker level when showing test pictures according to the liquid crystal display 17 under each initial common electric voltage to be tested that flicker degree arrangement for detecting 13 provides, and in all flicker level, obtain common electric voltage initial to be tested that wherein minimum flicker level is corresponding as initial better common electric voltage.
In sum, the common electric voltage debugging apparatus that the present embodiment provides, by control device, test pictures and initial common electric voltage are supplied to ignition device, and record liquid crystal display lighting time, under initial common electric voltage, liquid crystal display produces multiple first common electric voltage to be tested after lighting default a period of time, the first better common electric voltage is obtained according to all flicker level that the first common electric voltage to be tested and flicker degree arrangement for detecting provide, multiple second common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the first better common electric voltage, the second better common electric voltage is obtained according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, the n-th better common electric voltage is obtained according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of liquid crystal display is determined according to all better common electric voltage obtained.Thus can automatically regulate common electric voltage to make flicker level minimum, avoid the error manually adjusting and bring, also make common electric voltage debug more accurate, simple to operate, cost is lower, and improves the debugging efficiency of common electric voltage.
Be below embodiment of the method for the present invention, the details of not detailed description in embodiment of the method, can with reference to the device embodiment of above-mentioned correspondence.
Second embodiment
Fig. 3 is the flow chart of steps of the common electric voltage adjustment method that second embodiment of the invention provides.Please refer to Fig. 3, the common electric voltage adjustment method of the present embodiment, comprises the following steps 300-309.
Step 300, test pictures and initial common electric voltage are supplied to ignition device by control device, and record liquid crystal display lighting time.
Step 303, the test pictures that ignition device provides according to control device and initial common electric voltage control to light liquid crystal display, make liquid crystal display show test pictures under initial common electric voltage.
Step 305, all flicker level of flicker degree arrangement for detecting detecting liquid crystal display under initial common electric voltage and each common electric voltage to be tested during liquid crystal display display test pictures, and all flicker level of detecting are supplied to control device.
Step 307, control device liquid crystal display under initial common electric voltage produces multiple first common electric voltage to be tested after lighting default a period of time, and the first common electric voltage to be tested produced is supplied to ignition device, the Control of Voltage liquid crystal display to be tested that ignition device provides according to control device shows test pictures under voltage to be tested;
Step 309, all flicker level during the display of liquid crystal display under each the first common electric voltage to be tested test pictures that control device provides according to the first common electric voltage to be tested and flicker degree arrangement for detecting obtain the first better common electric voltage, multiple second common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the first better common electric voltage, multiple second common electric voltages to be tested produced are supplied to ignition device, the Control of Voltage liquid crystal display to be tested that ignition device provides according to control device shows test pictures under voltage to be tested, control device obtains the second better common electric voltage according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, control device obtains the n-th better common electric voltage according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of liquid crystal display is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
The process of above-mentioned steps 307 and 309 is namely: control device liquid crystal display under initial common electric voltage produces multiple first common electric voltage to be tested after lighting default a period of time, and the first common electric voltage to be tested produced is supplied to ignition device, ignition device controls liquid crystal display according to multiple first common electric voltages to be tested that control device provides and show test pictures under the first common electric voltage to be tested, all flicker level during the display of liquid crystal display under each the first common electric voltage to be tested test pictures that control device provides according to the first common electric voltage to be tested and flicker degree arrangement for detecting obtain the first better common electric voltage, multiple second common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the first better common electric voltage, multiple second common electric voltages to be tested produced are supplied to ignition device, ignition device controls liquid crystal display according to multiple second common electric voltages to be tested that control device provides and show test pictures under the second common electric voltage to be tested, control device obtains the second better common electric voltage according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, control device obtains the n-th better common electric voltage according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of liquid crystal display is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
Further, can also comprise in step 309:
Control device also draws better common electric voltage and the relation curve of time according to the better common electric voltage of the first better common electric voltage to the n-th obtained, and determines the best common electric voltage of liquid crystal display according to better common electric voltage and the relation curve of time.
Further, can also comprise in step 309:
Control device also determines that the best common electric voltage of liquid crystal display is the mean value of maximal value in the first to the n-th better common electric voltage and minimum value; Or calculate the mean value of all better common electric voltages, the best common electric voltage of liquid crystal display is the mean value of all better common electric voltages; Or the maximal and minmal value removed in better common electric voltage, the best common electric voltage of liquid crystal display is the mean value removing remaining better common electric voltage after the maximal and minmal value in better common electric voltage.
In sum, the common electric voltage adjustment method that the embodiment of the present invention provides, by control device, test pictures and initial common electric voltage are supplied to ignition device, and record liquid crystal display lighting time, under initial common electric voltage, liquid crystal display produces multiple first common electric voltage to be tested after lighting default a period of time, the first better common electric voltage is obtained according to all flicker level that the first common electric voltage to be tested and flicker degree arrangement for detecting provide, multiple second common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the first better common electric voltage, the second better common electric voltage is obtained according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, the n-th better common electric voltage is obtained according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of liquid crystal display is determined according to all better common electric voltage obtained.Thus can automatically regulate common electric voltage to make flicker level minimum, avoid the error manually adjusting and bring, also make common electric voltage debug more accurate, simple to operate, cost is lower, and improves the debugging efficiency of common electric voltage.
3rd embodiment
Fig. 4 is the flow chart of steps of the common electric voltage adjustment method that third embodiment of the invention provides.Fig. 4 improves on the basis of Fig. 3.The difference of Fig. 4 and Fig. 3 is, Fig. 4 can also comprise step 400.Please refer to Fig. 4, the common electric voltage adjustment method of the embodiment of the present invention, also can comprise the following steps 300-309 and 400:
Wherein step 300-309 and Fig. 3 is identical, does not repeat them here.
Step 400, initial common electric voltage is initial better common electric voltage, then control device is also after being supplied to ignition device by test pictures and initial common electric voltage, produce multiple initial common electric voltage to be tested, and the multiple initial common electric voltage to be tested produced is supplied to ignition device, ignition device controls liquid crystal display according to the common electric voltage multiple initial to be tested that control device provides and show test pictures under initial common electric voltage to be tested, control device and the display of liquid crystal display under each the initial common electric voltage to be tested test pictures provided according to flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain common electric voltage initial to be tested that wherein minimum flicker level is corresponding as initial better common electric voltage.
In sum, the common electric voltage adjustment method that the embodiment of the present invention provides, also by making common electric voltage debug debugging from initial better common electric voltage, further increases precision and the accuracy of common electric voltage debugging.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a common electric voltage debugging apparatus, is characterized in that, it comprises: control device, the flicker degree arrangement for detecting be connected with described control device and ignition device, wherein,
Described ignition device, control to light liquid crystal display for the test pictures that provides according to described control device and initial common electric voltage, under described initial common electric voltage, test pictures is shown to make described liquid crystal display, and after under described initial common electric voltage, described liquid crystal display lights default a period of time, the common electric voltage all to be tested provided according to described control device controls described liquid crystal display and show test pictures under all common electric voltage to be tested;
All flicker level of detecting for detecting all flicker level of described liquid crystal display under initial common electric voltage and each common electric voltage to be tested during described liquid crystal display display test pictures, and are supplied to described control device by described flicker degree arrangement for detecting;
Described control device, for described test pictures and described initial common electric voltage are supplied to described ignition device, and record described liquid crystal display lighting time, multiple first common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under described initial common electric voltage, the first better common electric voltage is obtained according to all flicker level that described first common electric voltage to be tested and flicker degree arrangement for detecting provide, multiple second common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the first better common electric voltage, the second better common electric voltage is obtained according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, the n-th better common electric voltage is obtained according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of described liquid crystal display is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
2. common electric voltage debugging apparatus according to claim 1, it is characterized in that, described control device, also for multiple first common electric voltages to be tested produced are supplied to described ignition device, described ignition device controls described liquid crystal display according to multiple first common electric voltages to be tested that control device provides and show test pictures under the first common electric voltage to be tested, described control device and the display of described liquid crystal display under each the first common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain the first common electric voltage to be tested corresponding to wherein minimum flicker level as the first better common electric voltage.
3. common electric voltage debugging apparatus according to claim 1, it is characterized in that, described control device, also for multiple second common electric voltages to be tested produced are supplied to described ignition device, described ignition device controls described liquid crystal display according to multiple second common electric voltages to be tested that described control device provides and show test pictures under the second common electric voltage to be tested, described control device and the display of described liquid crystal display under each the second common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain the second common electric voltage to be tested corresponding to wherein minimum flicker level as the second better common electric voltage.
4. common electric voltage debugging apparatus according to claim 1, it is characterized in that, described control device, also for drawing better common electric voltage and the relation curve of time according to the better common electric voltage of the first better common electric voltage to the n-th obtained, and determine the best common electric voltage of described liquid crystal display according to described better common electric voltage and the relation curve of time.
5. common electric voltage debugging apparatus according to claim 1, is characterized in that, described control device, also for determining that the best common electric voltage of described liquid crystal display is the mean value of maximal value in the first to the n-th better common electric voltage and minimum value; Or calculate the mean value of all better common electric voltages, the best common electric voltage of described liquid crystal display is the mean value of all better common electric voltages; Or the maximal and minmal value removed in better common electric voltage, the best common electric voltage of described liquid crystal display is the mean value removing remaining better common electric voltage after the maximal and minmal value in better common electric voltage.
6. common electric voltage debugging apparatus according to claim 1, it is characterized in that, described initial common electric voltage is initial better common electric voltage, then described control device is also for after being supplied to described ignition device by described test pictures and described initial common electric voltage, produce multiple initial common electric voltage to be tested, and the multiple initial common electric voltage to be tested produced is supplied to described ignition device, described ignition device controls described liquid crystal display according to the multiple initial common electric voltage to be tested that described control device provides and show test pictures under initial common electric voltage to be tested, described control device and the display of described liquid crystal display under each the initial common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain common electric voltage initial to be tested that wherein minimum flicker level is corresponding as initial better common electric voltage.
7. a common electric voltage adjustment method, is characterized in that, described common electric voltage adjustment method, comprising:
Test pictures and initial common electric voltage are supplied to ignition device by control device, and record liquid crystal display lighting time;
The test pictures that described ignition device provides according to described control device and initial common electric voltage control to light liquid crystal display, show test pictures to make described liquid crystal display under described initial common electric voltage;
Flicker degree arrangement for detecting detects all flicker level of described liquid crystal display under initial common electric voltage and each common electric voltage to be tested during described liquid crystal display display test pictures, and all flicker level of detecting are supplied to described control device;
Described control device produces multiple first common electric voltage to be tested after described liquid crystal display lights default a period of time under described initial common electric voltage, and the first common electric voltage to be tested produced is supplied to ignition device, described ignition device controls described liquid crystal display according to multiple first common electric voltages to be tested that described control device provides and show test pictures under the first common electric voltage to be tested, all flicker level during the display of liquid crystal display under each the first common electric voltage to be tested test pictures that described control device provides according to described first common electric voltage to be tested and flicker degree arrangement for detecting obtain the first better common electric voltage, multiple second common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the first better common electric voltage, multiple second common electric voltages to be tested produced are supplied to described ignition device, described ignition device controls described liquid crystal display according to multiple second common electric voltages to be tested that described control device provides and show test pictures under the second common electric voltage to be tested, described control device obtains the second better common electric voltage according to all flicker level that the second common electric voltage to be tested and flicker degree arrangement for detecting provide, the like, multiple (n-1)th common electric voltage to be tested is produced after described liquid crystal display lights default a period of time under the (n-1)th better common electric voltage, described control device obtains the n-th better common electric voltage according to all flicker level that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide, and the best common electric voltage of described liquid crystal display is determined according to all better common electric voltage obtained, wherein, n be greater than 1 parameter preset.
8. common electric voltage adjustment method according to claim 7, is characterized in that, also comprise:
Described control device also draws better common electric voltage and the relation curve of time according to the better common electric voltage of the first better common electric voltage to the n-th obtained, and determines the best common electric voltage of described liquid crystal display according to described better common electric voltage and the relation curve of time.
9. flicker of display panel degree method of adjustment according to claim 7, is characterized in that, also comprise:
Described control device also determines that the best common electric voltage of described liquid crystal display is the mean value of maximal value in the first to the n-th better common electric voltage and minimum value; Or calculate the mean value of all better common electric voltages, the best common electric voltage of described liquid crystal display is the mean value of all better common electric voltages; Or the maximal and minmal value removed in better common electric voltage, the best common electric voltage of described liquid crystal display is the mean value removing remaining better common electric voltage after the maximal and minmal value in better common electric voltage.
10. common electric voltage adjustment method according to claim 7, is characterized in that, also comprise:
Described initial common electric voltage is initial better common electric voltage, then described control device is also after being supplied to described ignition device by described test pictures and described initial common electric voltage, produce multiple initial common electric voltage to be tested, and the multiple initial common electric voltage to be tested produced is supplied to described ignition device, described ignition device controls described liquid crystal display according to the multiple initial common electric voltage to be tested that described control device provides and show test pictures under initial common electric voltage to be tested, described control device and the display of described liquid crystal display under each the initial common electric voltage to be tested test pictures provided according to described flicker degree arrangement for detecting time all flicker level, and in all flicker level, obtain common electric voltage initial to be tested that wherein minimum flicker level is corresponding as initial better common electric voltage.
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