CN105185340B - Common electric voltage debugging apparatus and method - Google Patents
Common electric voltage debugging apparatus and method Download PDFInfo
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- CN105185340B CN105185340B CN201510648890.1A CN201510648890A CN105185340B CN 105185340 B CN105185340 B CN 105185340B CN 201510648890 A CN201510648890 A CN 201510648890A CN 105185340 B CN105185340 B CN 105185340B
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Abstract
The invention discloses a kind of common electric voltage debugging apparatus and method, described device to include：Control device, the flicker degree arrangement for detecting and ignition device being connected with control device, ignition device is used for the test pictures provided according to control device and liquid crystal display is lighted in the control of initial common electric voltage, and under initial common electric voltage after liquid crystal display lights default a period of time, all common electric voltages control liquid crystal displays to be tested provided according to control device show test pictures under all common electric voltages to be tested；Flicker degree arrangement for detecting is used to detect all flicker levels when liquid crystal display liquid crystal display under initial common electric voltage and each common electric voltage to be tested shows test pictures；Control device is used for the optimal common electric voltage that liquid crystal display is determined according to obtained all preferably common electric voltages.The common electric voltage debugging apparatus and method of the present invention make it that common electric voltage debugging is more accurate, and simple to operate, cost is relatively low, and improves the debugging efficiency of common electric voltage.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of common electric voltage debugging apparatus and method.
Background technology
Liquid crystal display device (Liquid Crystal Display, LCD) have image quality is good, small volume, in light weight, low drive
The advantages that dynamic voltage, low-power consumption, relatively low radiationless and manufacturing cost, occupied an leading position at present in flat display field.Its
Be widely used in desktop computer, palmtop computer, personal digital assistant (Personal Digital Assistant,
PDA), in a variety of office automations such as portable phone, TV box and audio-visual equipment.
Liquid crystal display device include array base palte, colored optical filtering substrates, be folded in array base palte and colored optical filtering substrates it
Between liquid crystal layer, when liquid crystal display device works, load driver voltage and common electric voltage to pixel electrode and public electrode respectively
To produce electric field between liquid crystal layer, the yawing moment of liquid crystal molecule can be with the driving voltage and the difference of common electric voltage that are loaded
And change, so as to control the light percent of pass by liquid crystal layer, and then control the brightness of each pixel cell of liquid crystal display device.
In the liquid crystal display device course of work, because the polarity switching of common electric voltage can cause liquid crystal display panel to occur
Image residue (Image Stacking) phenomenon, i.e. scintillation, and when scintillation is serious, not only have a strong impact on liquid crystal
The display effect of showing device, but also the visual fatigue of observer and other discomforts can be caused, and by adjusting common electric voltage, can
So that the flicker level of liquid crystal display device is adjusted to minimum, so that the display effect of liquid crystal display device reaches best.Institute
So that common electric voltage must be debugged before dispatching from the factory, and the flicker level of liquid crystal display device is surveyed according to the common electric voltage of debugging
Amount, makes the flicker level of picture be minimized being worth, and improves viewing effect.
Existing common electric voltage adjustment method is mostly that the optimal common electrical in a period of time is debugged out using manual type
Pressure, its specific method is the liquid crystal display that the common electric voltage of required debugging is manually supplied to liquid crystal display device, and is measured successively
One flicker value, common electric voltage corresponding to wherein minimum flicker level is taken in all flicker values as optimal common electric voltage, with
Reach the purpose for ensureing that liquid crystal display device is in minimum flicker level.Above-mentioned manual debugging method, exist because of artificial experience and
The individual differences such as qualification, data record can be caused inaccurate unavoidably, the degree of accuracy for causing common electric voltage to debug is relatively low.And
Liquid crystal display device quantity can be relatively more in debugging process, it is also necessary to the common electric voltage of non-volatile recording liquid crystal display device,
Substantial amounts of human and material resources and time are expended, debugging efficiency is very low.
The content of the invention
The present invention provides a kind of common electric voltage debugging apparatus and method, simple to operate, the degree of accuracy is high and can greatly carry
High efficiency.
The technical scheme is as follows：
The embodiments of the invention provide a kind of common electric voltage debugging apparatus, it includes：Control device, with the control device
Connected flicker degree arrangement for detecting and ignition device, the ignition device are used for the test pictures provided according to the control device
Liquid crystal display is lighted with the control of initial common electric voltage, so that the liquid crystal display shows test pictures under the initial common electric voltage,
And after the liquid crystal display lights default a period of time, provided under the initial common electric voltage according to the control device all
Common electric voltage to be tested controls the liquid crystal display to show test pictures under all common electric voltages to be tested；The flicker degree detecting
Device is used to detect liquid crystal display liquid crystal display display survey under initial common electric voltage and each common electric voltage to be tested
All flicker levels during picture are tried, and all flicker levels of detecting are supplied to the control device；The control device
When being lighted for the test pictures and the initial common electric voltage to be supplied into the ignition device, and record the liquid crystal display
Between, the liquid crystal display produces the multiple first common electricals to be tested after lighting default a period of time under the initial common electric voltage
Pressure, it is preferably public that all flicker levels provided according to the described first common electric voltage to be tested and flicker degree arrangement for detecting obtain first
Common voltage, the liquid crystal display lights that to produce multiple second after default a period of time to be tested public under the first preferable common electric voltage
Voltage, it is preferably public that all flicker levels provided according to the second common electric voltage to be tested and flicker degree arrangement for detecting obtain second
Voltage, the like, the liquid crystal display produces multiple (n-1)th after lighting default a period of time under the (n-1)th preferable common electric voltage
Common electric voltage to be tested, obtained according to all flicker levels that the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide
N-th preferable common electric voltage, and the optimal common electric voltage of the liquid crystal display is determined according to obtained all preferably common electric voltages, its
In, n is the parameter preset more than 1.
In preferred embodiments of the present invention, the control device, it is additionally operable to be tested public by caused multiple first
Voltage is supplied to the ignition device, and the multiple first common electricals to be tested that the ignition device provides according to control device are voltage-controlled
Make the liquid crystal display and test pictures are shown under the first common electric voltage to be tested, the control device is simultaneously detectd according to the flicker degree
Survey all flicker journeys when the liquid crystal display under each first common electric voltage to be tested that device provides shows test pictures
Degree, and it is preferable as first to obtain in all flicker levels the first common electric voltage to be tested corresponding to wherein minimum flicker level
Common electric voltage.
In preferred embodiments of the present invention, the control device, it is additionally operable to be tested public by caused multiple second
Voltage is supplied to the ignition device, the multiple second common electricals to be tested that the ignition device provides according to the control device
The voltage-controlled system liquid crystal display shows test pictures under the second common electric voltage to be tested, the control device and according to the flicker
Spend all sudden strains of a muscle when the liquid crystal display under each second common electric voltage to be tested that arrangement for detecting provides shows test pictures
Bright degree, and the second common electric voltage to be tested corresponding to wherein minimum flicker level is obtained as second in all flicker levels
Preferable common electric voltage.
In preferred embodiments of the present invention, the control device, it is additionally operable to according to the first obtained preferable common electric voltage
Draw preferable common electric voltage and the relation curve of time to the n-th preferable common electric voltage, and according to the preferably common electric voltage and when
Between relation curve determine the optimal common electric voltage of the liquid crystal display.
In preferred embodiments of the present invention, the control device, it is additionally operable to determine the optimal common electrical of the liquid crystal display
Press as the maximum and the average value of minimum value in the first to the n-th preferable common electric voltage；Or calculate all preferable common electricals
The average value of pressure, the optimal common electric voltage of liquid crystal display are the average value of all preferably common electric voltages；Or remove preferably public
Maximal and minmal value in voltage, the optimal common electric voltage of the liquid crystal display are maximum and minimum in preferable common electric voltage to remove
The average value of remaining preferably common electric voltage after value.
In preferred embodiments of the present invention, the initial common electric voltage is initial preferable common electric voltage, then the control
Device is additionally operable to after the test pictures and the initial common electric voltage are supplied into the ignition device, is produced multiple initial
Common electric voltage to be tested, and caused multiple initial common electric voltages to be tested are supplied to the ignition device, the lighting dress
The multiple initial common electric voltages to be tested provided according to the control device are provided and control the liquid crystal display initial to be tested public
Test pictures are shown under voltage, the control device simultaneously provides initial to be measured at each according to the flicker degree arrangement for detecting
All flicker levels when the liquid crystal display under common electric voltage shows test pictures are tried, and are obtained wherein in all flicker levels
Initial common electric voltage to be tested is as initial preferable common electric voltage corresponding to minimum flicker level.
The embodiment of the present invention additionally provides a kind of common electric voltage adjustment method, including:Control device is by test pictures and just
Beginning common electric voltage is supplied to ignition device, and records liquid crystal display lighting time；The ignition device carries according to the control device
Liquid crystal display is lighted in the test pictures of confession and the control of initial common electric voltage, so that the liquid crystal display shows under the initial common electric voltage
Show test pictures,；Flicker degree arrangement for detecting detects the liquid crystal display in initial common electric voltage and each common electric voltage to be tested
Under all flicker levels of liquid crystal display when showing test pictures, and all flicker levels of detecting are supplied to the control
Device；The control device produces multiple first under the initial common electric voltage after the liquid crystal display lights default a period of time
Common electric voltage to be tested, and the caused first common electric voltage to be tested is supplied to ignition device, the ignition device is according to institute
The multiple first common electric voltages to be tested for stating control device offer control the liquid crystal display to show under the first common electric voltage to be tested
Show test pictures, the control device according to the described first common electric voltage to be tested and flicker degree arrangement for detecting provide each
Liquid crystal display shows that all flicker levels during test pictures obtain the first preferable common electric voltage under individual first common electric voltage to be tested,
The liquid crystal display produces the multiple second common electric voltages to be tested after lighting default a period of time under the first preferable common electric voltage, will
Caused multiple second common electric voltages to be tested are supplied to the ignition device, and the ignition device carries according to the control device
The multiple second common electric voltages to be tested supplied control the liquid crystal display to show test pictures under the second common electric voltage to be tested, institute
State all flicker levels that control device provides according to the second common electric voltage to be tested and flicker degree arrangement for detecting obtain second compared with
Good common electric voltage, the like, under the (n-1)th preferable common electric voltage the liquid crystal display light produce after default a period of time it is multiple
(n-1)th common electric voltage to be tested, the control device provide according to the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting
All flicker levels obtain the n-th preferable common electric voltage, and determine the liquid crystal display according to obtained all preferably common electric voltages
Optimal common electric voltage, wherein, n is parameter preset more than 1.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
When test pictures and initial common electric voltage being supplied into ignition device by control device, and recording liquid crystal display and lights
Between, liquid crystal display produces the multiple first common electric voltages to be tested after lighting default a period of time under initial common electric voltage, according to
All flicker levels that one common electric voltage to be tested and flicker degree arrangement for detecting provide obtain the first preferable common electric voltage, first
Liquid crystal display produces the multiple second common electric voltages to be tested after lighting default a period of time under preferable common electric voltage, to be measured according to second
All flicker levels that examination common electric voltage and flicker degree arrangement for detecting provide obtain the second preferable common electric voltage, the like,
Liquid crystal display produces the multiple (n-1)th common electric voltages to be tested after lighting default a period of time under (n-1)th preferable common electric voltage, according to
All flicker levels that n-1 common electric voltages to be tested and flicker degree arrangement for detecting provide obtain the n-th preferable common electric voltage, and according to
Obtained all preferably common electric voltages determine the optimal common electric voltage of liquid crystal display.Make sudden strain of a muscle so as to automatically adjust common electric voltage
Bright degree is minimum, avoids and manually adjusts caused error, also make it that common electric voltage debugging is more accurate, simple to operate, into
This is relatively low, and improves the debugging efficiency of common electric voltage.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the common electric voltage debugging apparatus main frame block diagram that first embodiment of the invention provides；
Fig. 2 is preferable common electric voltage and the graph of relation of time；
Fig. 3 is the step flow chart for the common electric voltage adjustment method that second embodiment of the invention provides；
Fig. 4 is the step flow chart for the common electric voltage adjustment method that third embodiment of the invention provides.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to common electric voltage debugging apparatus proposed by the present invention and method its embodiment, structure,
Feature and effect, describe in detail as after.
For the present invention foregoing and other technology contents, feature and effect, in the following preferable reality coordinated with reference to schema
Applying during example describes in detail to be clearly presented.By the explanation of embodiment, when predetermined mesh can be reached to the present invention
The technological means taken and effect be able to more deeply and it is specific understand, but institute's accompanying drawings are only to provide with reference to saying
It is bright to be used, not it is used for being any limitation as the present invention.
First embodiment
Fig. 1 is the main frame block diagram for the common electric voltage debugging apparatus that first embodiment of the invention provides.Fig. 2 is preferable public affairs
Common voltage and the graph of relation of time.It refer to Fig. 1 and Fig. 2, the common electric voltage debugging apparatus, including：Control device 11,
The flicker degree arrangement for detecting 13 and ignition device 15 being connected with control device 11.Flicker degree arrangement for detecting 13 and ignition device 15 with
Liquid crystal display 17 is connected.
Ignition device 15, liquid crystal is lighted for the test pictures provided according to control device 11 and the control of initial common electric voltage
Screen 17, so that liquid crystal display 17 shows test pictures under initial common electric voltage, and liquid crystal display 17 is lighted under initial common electric voltage
After default a period of time, all common electric voltages to be tested provided according to control device 11 control liquid crystal display 17 all to be tested
Test pictures are shown under common electric voltage.Specifically, ignition device 15 be used under initial common electric voltage liquid crystal display 17 light it is default
After a period of time, the multiple first common electric voltages to be tested provided according to control device 11 control liquid crystal display 17 to be tested first
Test pictures are shown under common electric voltage, and after liquid crystal display 17 lights default a period of time under the first preferable common electric voltage, according to
The multiple second common electric voltage control liquid crystal displays 17 to be tested that control device 11 provides are shown under the second common electric voltage to be tested
Test pictures, the like, after liquid crystal display 17 lights default a period of time under the (n-1)th preferable common electric voltage, filled according to control
The the multiple n-th common electric voltage control liquid crystal displays 17 to be tested for putting 11 offers show test pictures under the n-th common electric voltage to be tested,
Wherein, the detail of common electric voltage to be tested refers to described below.
Flicker degree arrangement for detecting 13, for detecting liquid crystal display 17 in initial common electric voltage and each common electric voltage to be tested
Lower liquid crystal display 17 shows all flicker levels during test pictures, and all flicker levels of detecting are supplied into control device
11。
Wherein, flicker degree arrangement for detecting 13 can be the equipment such as optical sensor, and it can sense liquid crystal display 17 in starting point
Flicker level after bright under different common voltage driving.The grey-scale range of liquid crystal display device is 0-255, in the embodiment of the present invention
The common electric voltage of liquid crystal display 17 can be debugged under any GTG.
Control device 11, for test pictures and initial common electric voltage to be supplied into ignition device 15, and record liquid crystal display
17 lighting times, (such as 0.5 hour) produces multiple the after liquid crystal display 17 lights default a period of time under initial common electric voltage
One common electric voltage to be tested, provided according to the first common electric voltage to be tested and flicker degree arrangement for detecting first to be measured at each
Liquid crystal display shows that all flicker levels during test pictures obtain the first preferable common electric voltage under examination common electric voltage, preferable first
Liquid crystal display 17 produces the multiple second common electric voltages to be tested after lighting default a period of time under common electric voltage, to be tested according to second
The liquid crystal display under each second common electric voltage to be tested that common electric voltage and flicker degree arrangement for detecting provide shows test pictures
When all flicker levels obtain the second preferable common electric voltage, the like, 17 points of the liquid crystal display under the (n-1)th preferable common electric voltage
The multiple (n-1)th common electric voltages to be tested are produced after bright default a period of time, are detectd according to the (n-1)th common electric voltage to be tested and flicker degree
Survey the liquid crystal display under each (n-1)th common electric voltage to be tested that device provides and show that all flicker levels during test pictures obtain
The optimal common electric voltage of liquid crystal display 17 is determined to the n-th preferable common electric voltage, and according to obtained all preferably common electric voltages, its
In, n is the parameter preset more than 1.
Wherein, control device 11 can record liquid after test pictures and initial common electric voltage are supplied into ignition device 15
The lighting time of crystalline substance screen 17, and using this time as the beginning electricity bright time.In addition, obtain the process of the first preferable common electric voltage
For：Control device 11 is additionally operable to caused multiple first common electric voltages to be tested being supplied to ignition device 15, ignition device 15
The multiple first common electric voltages to be tested provided according to control device 11 control liquid crystal display 17 under the first common electric voltage to be tested
Show test pictures, control device 11 and according to flicker degree arrangement for detecting 13 provide in each the first common electric voltage to be tested
Lower liquid crystal display 17 shows all flicker levels during test pictures, and wherein minimum flicker level is obtained in all flicker levels
Corresponding first common electric voltage to be tested is as the first preferable common electric voltage.Wherein, by under the first common electric voltage to be tested
Flicker level is obtained successively, can so find the first common electric voltage to be tested corresponding to minimum flicker level.
Wherein, the process for obtaining the second preferable common electric voltage is：Control device 11 is additionally operable to treat caused multiple second
Test common electric voltage is supplied to ignition device 15, and ignition device 15 provides multiple second to be tested public according to control device 11
Voltage control liquid crystal display 17 shows test pictures under the second common electric voltage to be tested, and control device 11 is simultaneously detected according to flicker degree
The liquid crystal display 17 under each second common electric voltage to be tested that device 13 provides shows all flicker levels during test pictures,
And it is preferably public as second that the second common electric voltage to be tested corresponding to wherein minimum flicker level is obtained in all flicker levels
Common voltage.
N-th to be obtained according to the cyclic process for obtaining the first preferable common electric voltage and the second preferable common electric voltage preferably public successively
The process of common voltage is：Control device 11 is additionally operable to the liquid crystal display 17 under the (n-1)th preferable common electric voltage and lights default a period of time
Afterwards, multiple n-th common electric voltages to be tested are produced, and caused multiple n-th common electric voltages to be tested are supplied to ignition device 15,
The multiple n-th common electric voltages to be tested that ignition device 15 provides according to control device 11 control liquid crystal display 17 in the n-th public affairs to be tested
Show test pictures under common voltage, control device 11 simultaneously provides n-th to be tested at each according to flicker degree arrangement for detecting 13
All flicker levels under common electric voltage during the display of liquid crystal display 17 test pictures, and wherein minimum is obtained in all flicker levels
Common electric voltage corresponding to flicker level is as the n-th preferable common electric voltage.
Further, all preferably common electric voltages that above-mentioned basis obtains determine the optimal common electric voltage of liquid crystal display 17,
Specifically include：Control device 11 is additionally operable to be drawn preferably according to the first obtained preferable common electric voltage to the n-th preferable common electric voltage
Common electric voltage and the relation curve of time, and liquid crystal display 17 is determined most according to the relation curve of preferable common electric voltage and time
Good common electric voltage.
In the present embodiment, because of control device 11, institute is right when default a period of time acquisition 11 flicker level minimum of liquid crystal display
The common electric voltage answered is the preferable common electric voltage in this time.Control device 11 was for 0.5 hour with default a period of time
Measuring point, the intra-record slack byte preferable common electric voltage of 0.5 hour successively, (for example, default untill it recorded the default time
Time is 12 hours lighting time), 24 preferable common electric voltage change points are recorded altogether, with the time of the preferable common electric voltage of record
Point is X-axis, using preferable common electric voltage value as Y-axis, so as to be depicted as the relation curve of preferable common electric voltage and time, is such as schemed
Shown in 2.
Further, control device 11 determines liquid crystal display 17 most according to the relation curve of preferable common electric voltage and time
After good common electric voltage, optimal common electric voltage can be entered liquid crystal display 17 by the burning of ignition device 15, and to the lighting of liquid crystal display 17
Confirmed, to further determine that the correctness of identified optimal common electric voltage.
Further, control device 11 determines liquid crystal display 17 most according to the relation curve of preferable common electric voltage and time
Good common electric voltage, is specifically included：Control device 11, the optimal common electric voltage for being additionally operable to determine liquid crystal display 17 can be first to the
The average value of maximum and minimum value in the preferable common electric voltages of n；Or
The average value of all preferably common electric voltages is calculated, 17 optimal common electric voltage of liquid crystal display can be all preferably public
The average value of voltage；Or
The maximal and minmal value in preferable common electric voltage is removed, the optimal common electric voltage of liquid crystal display 17 is preferably public to remove
The average value of remaining preferably common electric voltage after maximal and minmal value in voltage.
Wherein, control device 11 can be the control devices such as computer.Test pictures for example can be gridiron pattern picture.Produce
To automatically adjust common electric voltage value according to particular step size during common electric voltage to be tested, i.e., next common electric voltage to be tested with it is current
Common electric voltage has particular step size, such as step-length is the numerical value such as 0.1 volt.
Further, initial common electric voltage is initial preferable common electric voltage, then control device 11 is additionally operable to that picture will be being tested
After face and initial common electric voltage are supplied to ignition device 15, multiple initial common electric voltages to be tested are produced, and it is multiple by caused by
Initial common electric voltage to be tested is supplied to ignition device 15, and ignition device 15 provides multiple initial to be measured according to control device 11
Examination common electric voltage control liquid crystal display 17 shows test pictures under initial common electric voltage to be tested, control device 11 and according to flicker
Spend all sudden strains of a muscle when liquid crystal display 17 shows test pictures under each initial common electric voltage to be tested that arrangement for detecting 13 provides
Bright degree, and initial common electric voltage to be tested corresponding to wherein minimum flicker level is obtained as initial in all flicker levels
Preferable common electric voltage.
In summary, the common electric voltage debugging apparatus that the present embodiment provides, by control device by test pictures and initially
Common electric voltage is supplied to ignition device, and records liquid crystal display lighting time, and liquid crystal display lights default one under initial common electric voltage
The multiple first common electric voltages to be tested are produced after the section time, are provided according to the first common electric voltage to be tested and flicker degree arrangement for detecting
All flicker levels obtain the first preferable common electric voltage, liquid crystal display lights default a period of time under the first preferable common electric voltage
After produce the multiple second common electric voltages to be tested, provided according to the second common electric voltage to be tested and flicker degree arrangement for detecting all
Flicker level obtains the second preferable common electric voltage, the like, liquid crystal display lights default one section under the (n-1)th preferable common electric voltage
The multiple (n-1)th common electric voltages to be tested are produced after time, are provided according to the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting
All flicker levels obtain the n-th preferable common electric voltage, and determine liquid crystal display according to obtained all preferably common electric voltages
Optimal common electric voltage.Make flicker level minimum so as to automatically adjust common electric voltage, avoid and manually adjust caused mistake
Difference, also make it that common electric voltage debugging is more accurate, simple to operate, cost is relatively low, and improves the debugging efficiency of common electric voltage.
It is below the embodiment of the method for the present invention, the details of not detailed description, may be referred to above-mentioned in embodiment of the method
Corresponding device embodiment.
Second embodiment
Fig. 3 is the step flow chart for the common electric voltage adjustment method that second embodiment of the invention provides.Fig. 3 is refer to, this
The common electric voltage adjustment method of 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 point
The bright time.
Step 303, the test pictures and the control of initial common electric voltage that ignition device provides according to control device light liquid crystal
Screen, makes liquid crystal display show test pictures under initial common electric voltage.
Step 305, flicker degree arrangement for detecting detects liquid crystal display in initial common electric voltage and each common electric voltage to be tested
Lower liquid crystal display shows all flicker levels during test pictures, and all flicker levels of detecting are supplied into control device.
Step 307, control device liquid crystal display under initial common electric voltage produces multiple first after lighting default a period of time
Common electric voltage to be tested, and the caused first common electric voltage to be tested is supplied to ignition device, ignition device fills according to control
The voltage to be tested control liquid crystal display for putting offer shows test pictures under voltage to be tested；
Step 309, control device according to the first common electric voltage to be tested and flicker degree arrangement for detecting provide at each
Liquid crystal display shows that all flicker levels during test pictures obtain the first preferable common electric voltage under first common electric voltage to be tested,
Liquid crystal display produces the multiple second common electric voltages to be tested after lighting default a period of time under first preferable common electric voltage, by caused by
Multiple second common electric voltages to be tested are supplied to ignition device, and the voltage to be tested that ignition device provides according to control device controls
Liquid crystal display shows test pictures under voltage to be tested, and control device is according to the second common electric voltage to be tested and flicker degree detecting dress
All flicker levels for putting offer obtain the second preferable common electric voltage, the like, the liquid crystal display under the (n-1)th preferable common electric voltage
The multiple (n-1)th common electric voltages to be tested are produced after lighting default a period of time, control device is according to the (n-1)th common electric voltage to be tested
All flicker levels provided with flicker degree arrangement for detecting obtain the n-th preferable common electric voltage, and all preferably public according to what is obtained
Common voltage determines the optimal common electric voltage of liquid crystal display, wherein, n is the parameter preset more than 1.
The process of above-mentioned steps 307 and 309 is：Control device is when liquid crystal display lights default one section under initial common electric voltage
Between after produce multiple first common electric voltages to be tested, and the caused first common electric voltage to be tested is supplied to ignition device, point
The multiple first common electric voltages to be tested that lamp device provides according to control device control liquid crystal display in the first common electric voltage to be tested
Lower display test pictures, control device according to the first common electric voltage to be tested and flicker degree arrangement for detecting provide each the
Liquid crystal display shows that all flicker levels during test pictures obtain the first preferable common electric voltage under one common electric voltage to be tested, the
Liquid crystal display produces the multiple second common electric voltages to be tested after lighting default a period of time under one preferable common electric voltage, more by caused by
Individual second common electric voltage to be tested is supplied to ignition device, the multiple second public affairs to be tested that ignition device provides according to control device
Common voltage control liquid crystal display shows test pictures under the second common electric voltage to be tested, and control device is to be tested public according to second
All flicker levels that voltage and flicker degree arrangement for detecting provide obtain the second preferable common electric voltage, the like, (n-1)th compared with
Liquid crystal display, which is lighted, under good common electric voltage produces the multiple (n-1)th common electric voltages to be tested after default a period of time, control device according to
All flicker levels that (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting provide obtain the n-th preferable common electric voltage, and root
The optimal common electric voltage of liquid crystal display is determined according to obtained all preferably common electric voltages, wherein, n is the parameter preset more than 1.
Further, can also include in step 309：
Control device draws preferable common electric voltage always according to the first obtained preferable common electric voltage to the n-th preferable common electric voltage
With the relation curve of time, and the optimal common electrical of liquid crystal display is determined according to the relation curve of preferable common electric voltage and time
Pressure.
Further, can also include in step 309：
Control device also determine liquid crystal display optimal common electric voltage be the first to the n-th preferable common electric voltage in maximum and
The average value of minimum value；Or calculate it is all preferably common electric voltages average value, the optimal common electric voltage of liquid crystal display for it is all compared with
The average value of good common electric voltage；Or the maximal and minmal value in the preferable common electric voltage of removal, the optimal common electric voltage of liquid crystal display
For the average value of remaining preferably common electric voltage after the maximal and minmal value in the preferable common electric voltage of removal.
In summary, common electric voltage adjustment method provided in an embodiment of the present invention, by control device by test pictures and
Initial common electric voltage is supplied to ignition device, and records liquid crystal display lighting time, and liquid crystal display is lighted pre- under initial common electric voltage
If producing the multiple first common electric voltages to be tested after a period of time, according to the first common electric voltage to be tested and flicker degree arrangement for detecting
All flicker levels provided obtain the first preferable common electric voltage, and liquid crystal display lights default one section under the first preferable common electric voltage
The multiple second common electric voltages to be tested are produced after time, are provided according to the second common electric voltage to be tested and flicker degree arrangement for detecting
All flicker levels obtain the second preferable common electric voltage, the like, liquid crystal display is lighted default under the (n-1)th preferable common electric voltage
The multiple (n-1)th common electric voltages to be tested are produced after a period of time, according to the (n-1)th common electric voltage to be tested and flicker degree arrangement for detecting
All flicker levels provided obtain the n-th preferable common electric voltage, and determine liquid crystal according to obtained all preferably common electric voltages
The optimal common electric voltage of screen.Make flicker level minimum so as to automatically adjust common electric voltage, avoid to manually adjust and brought
Error, also cause common electric voltage debugging it is more accurate, simple to operate, cost is relatively low, and improves the debugging of common electric voltage
Efficiency.
3rd embodiment
Fig. 4 is the step flow chart for the common electric voltage adjustment method that third embodiment of the invention provides.Fig. 4 is in Fig. 3
On the basis of improve.Fig. 4 and Fig. 3 difference is that Fig. 4 can also include step 400.Fig. 4 is refer to, the present invention is implemented
The common electric voltage adjustment method of example, can also include the steps of 300-309 and 400：
Wherein step 300-309 is identical with Fig. 3, will not be repeated here.
Step 400, initial common electric voltage is initial preferable common electric voltage, then control device is also by test pictures and initially
After common electric voltage is supplied to ignition device, multiple initial common electric voltages to be tested are produced, and it is multiple initial to be tested by caused by
Common electric voltage is supplied to ignition device, and multiple initial common electric voltages to be tested that ignition device provides according to control device control liquid
Crystalline substance screen shows test pictures under initial common electric voltage to be tested, control device and according to flicker degree arrangement for detecting provide every
All flicker levels under one initial common electric voltage to be tested during liquid crystal display display test pictures, and in all flicker levels
Initial common electric voltage to be tested corresponding to wherein minimum flicker level is obtained as initial preferable common electric voltage.
In summary, common electric voltage adjustment method provided in an embodiment of the present invention, also by making common electric voltage debug from first
The preferable common electric voltage that begins starts to debug, and further increases the precision and accuracy of common electric voltage debugging.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of common electric voltage debugging apparatus, it is characterised in that it includes：Control device, the sudden strain of a muscle being connected with the control device
Bright degree arrangement for detecting and ignition device, wherein,
The ignition device, liquid crystal is lighted for the test pictures provided according to the control device and the control of initial common electric voltage
Screen, so that the liquid crystal display shows test pictures under the initial common electric voltage, and it is described under the initial common electric voltage
After liquid crystal display lights default a period of time, all common electric voltages to be tested provided according to the control device control the liquid crystal
Screen shows test pictures under all common electric voltages to be tested；
The flicker degree arrangement for detecting, for detecting the liquid crystal display in initial common electric voltage and each common electric voltage to be tested
Under all flicker levels of liquid crystal display when showing test pictures, and all flicker levels of detecting are supplied to the control
Device；
The control device, for the test pictures and the initial common electric voltage to be supplied into the ignition device, and remember
Record the liquid crystal display lighting time, under the initial common electric voltage liquid crystal display light produce after default a period of time it is multiple
First common electric voltage to be tested, all flicker journeys provided according to the described first common electric voltage to be tested and flicker degree arrangement for detecting
Degree obtains the first preferable common electric voltage, and generation is more after the liquid crystal display lights default a period of time under the first preferable common electric voltage
Individual second common electric voltage to be tested, all flicker levels provided according to the second common electric voltage to be tested and flicker degree arrangement for detecting
The second preferable common electric voltage is obtained, the like, the liquid crystal display lights default a period of time under the (n-1)th preferable common electric voltage
After produce the multiple n-th common electric voltages to be tested, all sudden strains of a muscle provided according to the n-th common electric voltage to be tested and flicker degree arrangement for detecting
Bright degree obtains the n-th preferable common electric voltage, and determines the optimal of the liquid crystal display according to obtained all preferably common electric voltages
Common electric voltage, wherein, n is the parameter preset more than 1.
2. common electric voltage debugging apparatus according to claim 1, it is characterised in that the control device, be additionally operable to produce
The multiple first raw common electric voltages to be tested are supplied to the ignition device, and the ignition device provides more according to control device
Individual first common electric voltage to be tested controls the liquid crystal display to show test pictures, the control under the first common electric voltage to be tested
Device is simultaneously shown according to the liquid crystal display under each first common electric voltage to be tested of flicker degree arrangement for detecting offer
All flicker levels during test pictures, and it is to be measured to obtain in all flicker levels corresponding to wherein minimum flicker level first
Common electric voltage is tried as the first preferable common electric voltage.
3. common electric voltage debugging apparatus according to claim 1, it is characterised in that the control device, be additionally operable to produce
The multiple second raw common electric voltages to be tested are supplied to the ignition device, and the ignition device provides according to the control device
The multiple second common electric voltages to be tested control the liquid crystal displays to show test pictures under the second common electric voltage to be tested, it is described
Control device and the liquid crystal display under each second common electric voltage to be tested provided according to the flicker degree arrangement for detecting
All flicker levels during test pictures are shown, and are obtained in all flicker levels second corresponding to wherein minimum flicker level
Common electric voltage to be tested is as the second preferable common electric voltage.
4. common electric voltage debugging apparatus according to claim 1, it is characterised in that the control device, be additionally operable to basis
The first obtained preferable common electric voltage to the n-th preferable common electric voltage draws preferable common electric voltage and the relation curve of time, and root
The optimal common electric voltage of the liquid crystal display is determined according to preferably common electric voltage and the relation curve of time.
5. common electric voltage debugging apparatus according to claim 1, it is characterised in that the control device, be additionally operable to determine
The optimal common electric voltage of the liquid crystal display is the average value of the maximum and minimum value in the first to the n-th preferable common electric voltage；Or
Person calculates the average value of all preferably common electric voltages, and the optimal common electric voltage of liquid crystal display is flat for all preferably common electric voltages
Average；Or the maximal and minmal value in the preferable common electric voltage of removal, the optimal common electric voltage of the liquid crystal display are preferable to remove
The average value of remaining preferably common electric voltage after maximal and minmal value in common electric voltage.
6. common electric voltage debugging apparatus according to claim 1, it is characterised in that the initial preferable common electric voltage, then
The control device is additionally operable to after the test pictures and the initial common electric voltage are supplied into the ignition device, is produced
Multiple initial common electric voltages to be tested, and caused multiple initial common electric voltages to be tested are supplied to the ignition device, institute
Stating multiple initial common electric voltages to be tested that ignition device provides according to the control device controls the liquid crystal display initially treating
Show test pictures under test common electric voltage, the control device and according to the flicker degree arrangement for detecting provide at each
All flicker levels under initial common electric voltage to be tested during the liquid crystal display display test pictures, and in all flicker levels
Initial common electric voltage to be tested corresponding to wherein minimum flicker level is obtained as initial preferable common electric voltage.
A kind of 7. common electric voltage adjustment method, it is characterised in that the common electric voltage adjustment method, including：
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 and the control of initial common electric voltage that the ignition device provides according to the control device light liquid crystal display, with
The liquid crystal display is set to show test pictures under the initial common electric voltage；
Flicker degree arrangement for detecting detects liquid crystal display liquid under initial common electric voltage and each common electric voltage to be tested
Crystalline substance screen shows all flicker levels during test pictures, and all flicker levels of detecting are supplied into the control device；
The control device produces multiple first under the initial common electric voltage after the liquid crystal display lights default a period of time
Common electric voltage to be tested, and the caused first common electric voltage to be tested is supplied to ignition device, the ignition device is according to institute
The multiple first common electric voltages to be tested for stating control device offer control the liquid crystal display to show under the first common electric voltage to be tested
Show test pictures, the control device according to the described first common electric voltage to be tested and flicker degree arrangement for detecting provide each
Liquid crystal display shows that all flicker levels during test pictures obtain the first preferable common electric voltage under individual first common electric voltage to be tested,
The liquid crystal display produces the multiple second common electric voltages to be tested after lighting default a period of time under the first preferable common electric voltage, will
Caused multiple second common electric voltages to be tested are supplied to the ignition device, and the ignition device carries according to the control device
The multiple second common electric voltages to be tested supplied control the liquid crystal display to show test pictures under the second common electric voltage to be tested, institute
State all flicker levels that control device provides according to the second common electric voltage to be tested and flicker degree arrangement for detecting obtain second compared with
Good common electric voltage, the like, under the (n-1)th preferable common electric voltage the liquid crystal display light produce after default a period of time it is multiple
N-th common electric voltage to be tested, the control device provide all according to the n-th common electric voltage to be tested and flicker degree arrangement for detecting
Flicker level obtains the n-th preferable common electric voltage, and determines the liquid crystal display most according to obtained all preferably common electric voltages
Good common electric voltage, wherein, n is the parameter preset more than 1.
8. common electric voltage adjustment method according to claim 7, it is characterised in that also include：
The control device draws preferable common electric voltage always according to the first obtained preferable common electric voltage to the n-th preferable common electric voltage
With the relation curve of time, and the optimal of the liquid crystal display is determined according to preferably common electric voltage and the relation curve of time
Common electric voltage.
9. common electric voltage adjustment method according to claim 7, it is characterised in that also include：
The control device also determines that the optimal common electric voltage of the liquid crystal display is the maximum in the first to the n-th preferable common electric voltage
The average value of value and minimum value；Or calculate the average value of all preferably common electric voltages, the optimal common electric voltage of liquid crystal display
For the average value of all preferably common electric voltages；Or the maximal and minmal value in the preferable common electric voltage of removal, the liquid crystal display
Optimal common electric voltage is the average value of remaining preferably common electric voltage after the maximal and minmal value in the preferable common electric voltage of removal.
10. common electric voltage adjustment method according to claim 7, it is characterised in that also include：
The initial common electric voltage is initial preferable common electric voltage, then the control device is also by test pictures and described
After initial common electric voltage is supplied to the ignition device, multiple initial common electric voltages to be tested are produced, and it is multiple first by caused by
The common electric voltage to be tested that begins is supplied to the ignition device, and the ignition device provides multiple initial according to the control device
Common electric voltage to be tested controls the liquid crystal display to show test pictures under initial common electric voltage to be tested, and the control device is simultaneously
The liquid crystal display display test picture under each initial common electric voltage to be tested provided according to the flicker degree arrangement for detecting
All flicker levels during face, and obtain in all flicker levels initial to be tested public corresponding to wherein minimum flicker level
Voltage is as initial preferable common electric voltage.
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| CN105717676A (en) * | 2016-04-27 | 2016-06-29 | Tcl显示科技（惠州）有限公司 | Method for shortening IPS (in-plane switching) screen flicker and equipment with IPS screen |
| 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 |
| CN106128383B (en) * | 2016-08-25 | 2019-06-25 | 深圳市华星光电技术有限公司 | Gamma curve adjustment method |
| CN106169281A (en) * | 2016-09-13 | 2016-11-30 | 深圳市华星光电技术有限公司 | Flicker of display panel degree regulation equipment and control method |
| CN108172188B (en) * | 2018-01-05 | 2020-10-13 | 上海闻泰电子科技有限公司 | Burning method and device for common voltage of display screen and computer readable storage medium |
| CN113345385B (en) * | 2021-05-31 | 2022-03-22 | 北海惠科光电技术有限公司 | Display panel correction method and device, computer equipment and storage medium |
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| KR20080105595A (en) * | 2007-05-31 | 2008-12-04 | 삼성전자주식회사 | Apparatus for setting a common voltage and method of setting the common voltage |
| CN101452675A (en) * | 2007-12-05 | 2009-06-10 | 群康科技(深圳)有限公司 | Drive circuit and drive method for lcd device |
| CN101546528B (en) * | 2008-03-28 | 2011-05-18 | 群康科技(深圳)有限公司 | Liquid crystal display device and drive method thereof |
| CN101577096B (en) * | 2008-05-07 | 2011-07-27 | 群康科技(深圳)有限公司 | Method for adjusting common voltage of liquid crystal display device |
| CN101615382B (en) * | 2008-06-27 | 2012-07-04 | 群康科技(深圳)有限公司 | LCD device |
| CN102708821B (en) * | 2012-05-17 | 2014-02-19 | 京东方科技集团股份有限公司 | Method and device for setting common electrode voltage |
| CN104217687A (en) * | 2013-05-30 | 2014-12-17 | 北京京东方光电科技有限公司 | Method and device for automatically correcting flickering of liquid crystal display |
| CN103680445B (en) * | 2013-12-10 | 2015-11-25 | 京东方科技集团股份有限公司 | A kind of method of panel flicker self-regulation and device |
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