CN105047156A - Liquid crystal panel driving method and apparatus, and liquid crystal display - Google Patents
Liquid crystal panel driving method and apparatus, and liquid crystal display Download PDFInfo
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Abstract
The invention provides a liquid crystal panel driving method and apparatus, and a liquid crystal display. The method comprises: a set voltage value that is sent by a signal source and corresponds to a first pixel of a driving liquid crystal panel is obtained; a preset brightness compensation table is inquired and a voltage compensation coefficient of the first pixel is obtained according to a preset distance between the first pixel and a central axis of a row where the first pixel is located, wherein the larger the distance is, the higher the voltage compensation coefficient is and the brightness compensation table contains distances between all pixels at all rows in the liquid crystal panel and the central axes of the rows where the pixels are located as well as corresponding voltage compensation coefficients of all pixels; a compensation voltage value is generated based on the voltage compensation coefficient of the first pixel and the set voltage value; and a first drive signal is outputted to the first pixel, wherein the drive voltage value contained by the first drive signal is a compensation voltage value. According to the invention, a color cast problem can be solved.
Description
Technical field
The present invention relates to lcd technology, particularly relate to a kind of liquid crystal panel drive method, device and liquid crystal display.
Background technology
Along with the develop rapidly of science and technology, the application of liquid crystal display (LiquidCrystalDisplay, LCD) is more and more extensive, and such as, liquid crystal display is widely used in the various fields such as computer, TV, electronic watch.Wherein, the liquid crystal panel in liquid crystal display is for showing image, and the display quality of image directly affects the product quality of liquid crystal display.
As shown in Figure 1, liquid crystal panel drive system is generally divided into three parts, and Part I is signal source 110, for generation of picture signal, provides image information to TCON chip 120, and combining image information, send corresponding control signal; Part II is TCON chip 120, for exporting control signal and the image information meeting display panels needs; Part III is liquid crystal panel 130, has multiple pixel in liquid crystal panel.
First TFT (ThinFilmTransistor, thin film transistor (TFT)) the type LCD be widely used now under introducing.Owing to adopting TFT, be therefore also called TFT thin film transistor monitor.The effect of TFT is used to the device of each pixel of ACTIVE CONTROL, is so just equivalent on each pixel, devise a field effect transistor switch pipe.Multiple TFT101 forms tft array, and each TFT101 correspondence controls a pixel, as shown in Figure 2.
As shown in Figure 3, liquid crystal panel in TFT type LCD is clamped liquid crystal by lower glass plate and upper glass plates and is formed, form a plane-parallel capacitor, by being embedded in TFT in lower glass plate to this capacitor and the charging of built-in pixel, maintain voltage required for every width image until next width image update.
The TFT used in TFT type LCD is a three terminal device, and its function is exactly a switching tube.The glass plate of TFT type LCD makes semiconductor layer, has the source electrode being attached thereto and connecing and drain electrode at two ends, and corresponding with semiconductor by gate insulating film, utilize the voltage putting on grid to control the electric current between source, drain electrode.Each pixel on liquid crystal panel can be seen as between pixel electrode 201 and common electrode 202 and accompany one deck liquid crystal 203 structure, and it can be regarded as electric capacity from the angle of electricity, its equivalent electrical circuit as shown in Figure 3.The principle of work of the drive system of this liquid crystal panel is: to pixel P (i, j) charging to the capable i row of j, will with P (i, j) corresponding switch 204 conducting, data are given to signal wire 205 by data line 206, make signal wire 205 voltage is added to pixel P (i, j).When pixel P (i, j) fully charged after, switch 204 disconnects.Be pointed out that, even if switch 204 disconnects, electric charge in electric capacity is also preserved, liquid crystal molecule between pixel electrode 201 and common electrode 202 continues there is electric field action, (i, j) meeting are always shinny for such pixel P, until before being applied in next voltage, the electric charge in this electric capacity is discharged.Data line 206 controls the voltage of a row pixel, the switch opens of which pixel, data line 206 will control corresponding signal wire 205 and apply voltage to the pixel of switch opens, data line 206, by the control of the drive singal of TCON chip input, can apply corresponding voltage and applies the time of this voltage by indicator signal line 205.
The conventional architectures of the drive system of TFT type liquid crystal panel as shown in Figure 4, TFT type liquid crystal panel comprises TCON chip 401 and multiple SCOF (SourceChipOnFilm, source electrode covers brilliant film) drive 402, every root is very little to the driving line length difference of the pixel of the identical type of same a line of corresponding control from SCOF402 driving 402, such as drive 402 with leftmost SCOF, this SCOF driving 402 is almost consistent to the drive wire length of controlled red pixel 403, and drive 402 almost consistent to the drive wire length of corresponding controlled red pixel 403 to other SCOF.
Along with the development of science and technology, Tri-gate panel comes out gradually, and it has obvious cost advantage compared with other liquid crystal panel of the prior art, and this cost advantage derives from the minimizing that SCOF drives.TFT type LCD adopt the structure of the drive system of Tri-gate liquid crystal panel as shown in Figure 5, for reduce costs and decrease SCOF drive quantity, a SCOF is generally only had to drive 501, because single SCOF drives the port number of 501 limited, for reaching the object of normal display, the pixel of identical type deals with the minimizing of the port number that SCOF drives according to horizontal mode, the type of pixel with a line is all identical.
Because Tri-gate panel only has a SCOF to drive 501, drive wire to middle and to left and right line length not etc., gap is larger, such as SCOF drive 501 to leftmost pixel drive wire 510 with drive SCOF and drive 501 to arrive the length difference distance of the drive wire 511 of intermediate pixel larger, therefore impedance is different, can cause like this intermediate pixel 502 of same a line and leftmost pixel 503 receive the identical driving that same SCOF drives 501 to send after, in fact the driving voltage be added on intermediate pixel 502 and leftmost pixel 503 is different, and then intermediate pixel 502 is different with the actual gray of leftmost pixel 503, there is colour cast.
Summary of the invention
The invention provides a kind of liquid crystal panel drive method, device and liquid crystal display, to solve the problem of colour cast in prior art.
The present invention first aspect provides a kind of liquid crystal panel drive method, comprising:
Obtain that signal source sends, corresponding with the first pixel driven in liquid crystal panel setting voltage value;
The luminance compensation table that inquiry is preset, according to described first pixel and the predeterminable range of being expert between axis obtain the voltage compensation coefficient of the first pixel, described predeterminable range is larger, described voltage compensation coefficient is larger, and described luminance compensation table comprises the voltage compensation coefficient of each pixel in described liquid crystal panel in each row and the distance between be expert at axis and corresponding each pixel;
According to voltage compensation coefficient and the described setting voltage value generation bucking voltage value of described first pixel;
Export the first drive singal to described first pixel, the value of the driving voltage that described first drive singal comprises is described bucking voltage value.
Another aspect of the present invention provides a kind of liquid crystal panel drive, comprising:
Acquisition module, for obtaining that signal source sends, corresponding with the first pixel driven in liquid crystal panel setting voltage value;
Enquiry module, for inquiring about default luminance compensation table, according to described first pixel and the predeterminable range of being expert between axis obtain the voltage compensation coefficient of the first pixel, described predeterminable range is larger, described voltage compensation coefficient is larger, and described luminance compensation table comprises the voltage compensation coefficient of each pixel in described liquid crystal panel in each row and the distance between be expert at axis and corresponding each pixel;
Generation module, for generating bucking voltage value according to the voltage compensation coefficient of described first pixel and described setting voltage value;
Output module, for exporting the first drive singal to described first pixel, the value of the driving voltage that described first drive singal comprises is described bucking voltage value.
Another aspect of the present invention provides a kind of liquid crystal display, comprises the liquid crystal panel drive described in above-mentioned Arbitrary Term.
As shown from the above technical solution, compared with prior art, liquid crystal panel drive method provided by the invention, device and liquid crystal display, by carrying out voltage compensation to the first pixel, after making to apply bucking voltage in the first pixel, the brightness value of the first pixel when lighting is equal with the brightness value of second pixel of going together, and so just avoids colour cast problem as far as possible.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of liquid crystal panel drive system of the prior art;
Fig. 2 is the structural representation of the tft array of TFT type LCD in prior art;
Fig. 3 is the schematic equivalent circuit of TFT type LCD in prior art;
Fig. 4 is the conventional architectures schematic diagram of the drive system of TFT type liquid crystal panel in prior art;
Fig. 5 is the structural representation of the drive system of Tri-gate liquid crystal panel in prior art;
Fig. 6 is the schematic flow sheet of liquid crystal panel drive method according to an embodiment of the invention;
Fig. 7 A is structural representation when the second number of pixels is odd number according to an embodiment of the invention;
Fig. 7 B is structural representation when the second number of pixels is even number according to an embodiment of the invention;
Fig. 8 is the schematic flow sheet of liquid crystal panel drive method according to another embodiment of the present invention;
Fig. 9 is the structural representation of liquid crystal panel drive according to an embodiment of the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present embodiment provides a kind of liquid crystal panel drive method, for driving Tri-gate panel.The structure of Tri-gate panel as shown in Figure 5, Tri-gate panel comprises multiple pixel, three types pixel is at least comprised in multiple pixel, as: red pixel, green pixel and blue pixel, the pixel level of identical type is arranged in a line distribution, and adjacent three the dissimilar pixels of same column form an image quality pixel, such as the first row is red pixel, second row is green pixel, the third line is blue pixel, next be a line red pixel again, being alternately arranged of green pixel, blue pixel, same column pixel connects same data line.Tri-gate panel is provided with a SCOF and drives 501, this SCOF drives 501 to send drive singal by data line to each pixel, pixel of the same type such as to a line sends drive singal simultaneously, and the concrete structure of this Tri-gate panel belongs to prior art, does not repeat them here.
The executive agent of the present embodiment is liquid crystal panel drive, and this liquid crystal panel drive can be arranged in the display, such as, be arranged on TCON chip.As shown in Figure 6, be the schematic flow sheet of the liquid crystal panel drive method according to the present embodiment, the liquid crystal panel drive method of the present embodiment comprises:
Step 600, obtains that signal source sends, corresponding with the first pixel driven in liquid crystal panel setting voltage value.
The magnitude of voltage carried in setting voltage value corresponding to first pixel of the present embodiment drive singal that to be signal source send to the first pixel.In addition, go together and be positioned at the second pixel that place is put in axis with the first pixel, when the value of its driving voltage is equal with setting voltage value, brightness value when the second pixel is lighted is setting brightness value.
Line of symmetry between two pixels of the lie farthest away of being expert at that the axis that first pixel of the present embodiment is expert at is the first pixel, the second pixel and the first pixel are gone together, and are positioned at position, axis.It is noted that the second pixel of the position, axis of the present embodiment at least comprises following two kinds of situations any one:
The first situation: the number of the pixel that the first pixel 710 is expert at is odd number, such as shown in Figure 7 A, the number with the pixel of a line is 7, and like this, axis 701 can through pixel 702, and the second pixel of position, axis is pixel 702.
The second situation: the number of the pixel that the first pixel is expert at is even number, such as shown in Figure 7 B, the number of pixel is 6, like this, axis 701 can be passed in the middle of pixel 703 and pixel 704, and the second pixel of position, axis 701 can be pixel 701 or pixel 702.
The predeterminable range of the present embodiment can set according to actual needs.Such as, the scope of predeterminable range is generally be more than or equal to the first pixel to be separated by the distance of 5 row pixels.
Step 601, the luminance compensation table that inquiry is preset, according to the first pixel and the predeterminable range of being expert between axis obtain the voltage compensation coefficient of the first pixel, predeterminable range is larger, voltage compensation coefficient is larger, and luminance compensation table comprises the voltage compensation coefficient of each pixel in liquid crystal panel in each row and the distance between be expert at axis and corresponding each pixel.
The content of the luminance compensation table of the present embodiment can experimentally obtain.Such as, send same drive singal to the first pixel and the second pixel, the value of the driving voltage in drive singal is setting voltage value, and the first pixel and the second pixel electricity under driving voltage, now can obtain the setting brightness value of the second pixel.Then, increase the value of the driving voltage in drive singal, until the brightness of the first pixel also reaches setting brightness value, now the value of driving voltage is exactly bucking voltage value, and voltage compensation coefficient is exactly the ratio of setting voltage value and bucking voltage value.And so forth, obtain the distance between each pixel to be expert at axis and corresponding voltage compensation coefficient, and generate luminance compensation table.
It is noted that the first different pixels can corresponding different voltage compensation coefficient.Such as, voltage compensation coefficient can with the color of the first pixel, certainly can also be relevant to other factors.Like this, before step 601, also comprise: the identification information obtaining the first pixel, step 602 can be specifically according to the first pixel and the identification information of be expert at predeterminable range between axis and the first pixel, obtain the voltage compensation coefficient of the first pixel.Here identification information can be colouring information or the position of the first pixel, and position can be which row or which row.
Step 602, according to voltage compensation coefficient and the setting voltage value generation bucking voltage value of the first pixel.
When needs generate bucking voltage, can inquire about in this luminance compensation table in advance, obtain corresponding voltage compensation coefficient.Content in this luminance compensation table all can as above describe, and obtains by experiment.
This step specifically comprises, obtain bucking voltage value, this bucking voltage value equals the voltage compensation coefficient of the first pixel and the product of setting voltage value, namely, the relational expression of bucking voltage value and setting voltage value can be: V1=M × V, wherein V1 is bucking voltage value, and M is voltage compensation coefficient, and V is setting voltage value.
Step 603, to the first pixel output drive signal, the value that drive singal comprises driving voltage is bucking voltage value.
This bucking voltage value is used for realizing compensating to the first pixel, such as, if when the driving voltage of the first pixel in the drive singal inputted is setting voltage, its brightness value differs larger with setting brightness value, after the magnitude of voltage then applied in the first pixel is revised as bucking voltage value by original setting voltage value, brightness value during the lighting of the first pixel can be made equal with setting brightness value.
Be pointed out that, ideally, when the magnitude of voltage that first pixel applies is bucking voltage value, brightness value when first pixel is lighted is equal with setting brightness value, in practical operation, by environment, processing technology, the impact of characterization processes, even if when the magnitude of voltage that the first pixel applies is bucking voltage value, brightness when first pixel is lighted can not be completely equal with setting brightness value, but have certain error, in practical operation, as long as this error is the permissible error of generally acknowledging in the industry, the brightness value can regarded as when the first pixel is lighted is equal with setting brightness value.
In addition, while the first pixel output drive signal, also comprise: export the second drive singal to the second pixel, brightness when lighting to make the second pixel is setting brightness value, and the value of the driving voltage that the second drive singal comprises is equal with setting voltage value.That is, liquid crystal panel drive sends different drive singal respectively to the first pixel and the second pixel, and the brightness value when lighting of the first pixel and the second pixel can be made equal, will avoid like this producing colour cast problem as far as possible.
Compared with prior art, according to the liquid crystal panel drive method of the present embodiment, by carrying out voltage compensation to the first pixel, after making to apply bucking voltage in the first pixel, the brightness value of the first pixel when lighting is equal with the brightness value of second pixel of going together, and so just avoids colour cast problem as far as possible.
Embodiment two
For example, as shown in Figure 8, be the structural representation of the liquid crystal panel drive system of the present embodiment.This liquid crystal panel drive system comprises liquid crystal panel drive 810 and liquid crystal panel, liquid crystal panel is Tri-gate panel, first pixel 801, second pixel 802 and the 3rd pixel 803 are arranged on liquid crystal panel 802, first pixel 801 is identical with the second pixel 802 type and be positioned at same a line, spacing between first pixel 801 and the second pixel 802 is greater than predeterminable range, and the 3rd pixel 803 is positioned at directly over the first pixel 801.3rd pixel 803 is the first row pixel on liquid crystal panel 802, and the first pixel 801 and the second pixel 802 are the second row pixel on liquid crystal panel 802.
First, liquid crystal panel drive 810 receives need that signal source sends and exports setting voltage value corresponding to each pixel that the first pixel 801 is expert to, and particularly, what signal source sent is a signal.
Then, liquid crystal panel drive 810 obtains the identification information of the first pixel 801, such as colouring information, and obtain the first pixel with the predeterminable range of axis of being expert at, then, liquid crystal panel drive 810 inquires about the voltage compensation coefficient corresponding with the identification information of the first pixel 801 and predeterminable range in the luminance compensation table preset, and generates bucking voltage value according to the product of voltage compensation coefficient and the first setting voltage value.
Then, different drive singal is being sent respectively to the first pixel 801 and the second pixel 802, namely entrained in two drive singal driving voltage is different, the value of driving voltage entrained in the drive singal of the first pixel 801 correspondence is bucking voltage value, abridge in the drive singal of the second pixel 802 correspondence the value of driving voltage be setting voltage value.Like this, under different driving voltages, brightness when the first pixel 801 is lighted with the second pixel 802 is identical, there will not be color offset phenomenon.
Compared with prior art, the liquid crystal panel drive method of the present embodiment, by carrying out voltage compensation to the first pixel 801, generate bucking voltage value, and then send different drive singal respectively to the pixel of the same type being positioned at same a line, namely the driving voltage in drive singal is different, the value of the driving voltage of the first pixel 801 is bucking voltage value, the value of the driving voltage of the second pixel 802 is setting voltage value, the first pixel 801 can being made equal with the second brightness of pixel 802 when lighting, namely avoiding colour cast problem as far as possible.
Embodiment three
The present embodiment provides a kind of liquid crystal panel drive, for performing the liquid crystal panel drive method of embodiment one.This liquid crystal panel drive can be arranged in the display, such as, be arranged on TCON chip.
As shown in Figure 9, be the structural representation of the liquid crystal panel drive according to the present embodiment.This liquid crystal panel drive comprises acquisition module 901, enquiry module 902, generation module 903 and output module 904.
Wherein, acquisition module 901 is for obtaining that signal source sends, corresponding with the first pixel driven in liquid crystal panel setting voltage value; Enquiry module 902 is for inquiring about default luminance compensation table, according to the first pixel and the predeterminable range of being expert between axis obtain the voltage compensation coefficient of the first pixel, predeterminable range is larger, voltage compensation coefficient is larger, and luminance compensation table comprises the voltage compensation coefficient of each pixel in liquid crystal panel in each row and the distance between be expert at axis and corresponding each pixel; Generation module 903 is for generating bucking voltage value according to the voltage compensation coefficient of the first pixel and setting voltage value; Output module 904 is for exporting the first drive singal to the first pixel, and the value of the driving voltage that the first drive singal comprises is bucking voltage value.
The content of the luminance compensation table of the present embodiment can experimentally obtain.Such as, send same drive singal to the first pixel and the second pixel, the value of the driving voltage in drive singal is setting voltage value, and the first pixel and the second pixel electricity under driving voltage, now can obtain the setting brightness value of the second pixel.Then, increase the value of the driving voltage in drive singal, until the brightness of the first pixel also reaches setting brightness value, now the value of driving voltage is exactly bucking voltage value, and voltage compensation coefficient is exactly the ratio of setting voltage value and bucking voltage value.And so forth, obtain the distance between each pixel to be expert at axis and corresponding voltage compensation coefficient, and generate luminance compensation table.
For example, the setting voltage value that generation module 903 obtains, can be that enquiry module 902 sends to generation module 903, also can be that acquisition module 901 sends to generation module 903.The predeterminable range that enquiry module 902 gets can be that enquiry module 902 obtains voluntarily, also can be to send to enquiry module 902 after acquisition module 901 obtains, and is specifically not construed as limiting.
The liquid crystal panel drive of the present embodiment is for performing the liquid crystal panel drive method of embodiment one.
According to the liquid crystal panel drive of the present embodiment, by carrying out voltage compensation to the first pixel, after making to apply bucking voltage in the first pixel, the brightness value of the first pixel when lighting is equal with the brightness value of second pixel of going together, and so just avoids colour cast problem as far as possible.
Embodiment four
The object of the present embodiment is, does further supplementary notes to the liquid crystal panel drive of embodiment three.
The output module of the present embodiment also for:
While the first pixel output drive signal, export the second drive singal to the second pixel, the value of the driving voltage that the second drive singal comprises is equal with setting voltage value.
Alternatively, the generation module of the present embodiment specifically for: obtain bucking voltage value, bucking voltage value equals the voltage compensation coefficient of the first pixel and the product of setting voltage value.
Alternatively, the acquisition module of the present embodiment is also for obtaining the identification information of the first pixel: response, enquiry module also for: according to the first pixel and the identification information of be expert at predeterminable range between axis and the first pixel, obtain the voltage compensation coefficient of the first pixel.
The method of operating of the liquid crystal panel drive of the present embodiment is consistent with embodiment one and embodiment two, does not repeat them here.
According to the liquid crystal panel drive of the present embodiment, by carrying out voltage compensation to the first pixel, generate bucking voltage value, and then send different drive singal respectively to the pixel of the same type being positioned at same a line, namely the driving voltage in drive singal is different, and the value of the driving voltage of the first pixel is bucking voltage value, and the value of the driving voltage of the second pixel is setting voltage value, the first pixel can being made equal with the brightness of the second pixel when lighting, namely avoiding colour cast problem as far as possible.
The present invention also provides a kind of liquid crystal display, comprises the liquid crystal panel drive of above-mentioned any embodiment.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a liquid crystal panel drive method, is characterized in that, comprising:
Obtain that signal source sends, corresponding with the first pixel driven in liquid crystal panel setting voltage value;
The luminance compensation table that inquiry is preset, according to described first pixel and the predeterminable range of being expert between axis obtain the voltage compensation coefficient of the first pixel, described predeterminable range is larger, described voltage compensation coefficient is larger, and described luminance compensation table comprises the voltage compensation coefficient of each pixel in described liquid crystal panel in each row and the distance between be expert at axis and corresponding each pixel;
According to voltage compensation coefficient and the described setting voltage value generation bucking voltage value of described first pixel;
Export the first drive singal to described first pixel, the value of the driving voltage that described first drive singal comprises is described bucking voltage value.
2. liquid crystal panel drive method according to claim 1, is characterized in that, while the first pixel output drive signal, also comprises:
Export the second drive singal to described second pixel, the value of the driving voltage that described second drive singal comprises is equal with setting voltage value.
3. liquid crystal panel drive method according to claim 1, is characterized in that, generates bucking voltage value comprise according to the voltage compensation coefficient of described first pixel and described setting voltage value:
Obtain described bucking voltage value, described bucking voltage value equals the voltage compensation coefficient of described first pixel and the product of described setting voltage value.
4. the liquid crystal panel drive method according to any one of claim 1-3, is characterized in that, before the luminance compensation table preset according to described predeterminable range inquiry, also comprises:
Obtain the identification information of described first pixel;
The luminance compensation table that inquiry is preset, according to described first pixel and the predeterminable range of being expert between the axis voltage compensation coefficient that obtains the first pixel comprise::
According to described first pixel and the identification information of be expert at predeterminable range between axis and described first pixel, obtain the voltage compensation coefficient of the first pixel.
5. a liquid crystal panel drive, is characterized in that, comprising:
Acquisition module, for obtaining that signal source sends, corresponding with the first pixel driven in liquid crystal panel setting voltage value;
Enquiry module, for inquiring about default luminance compensation table, according to described first pixel and the predeterminable range of being expert between axis obtain the voltage compensation coefficient of the first pixel, described predeterminable range is larger, described voltage compensation coefficient is larger, and described luminance compensation table comprises the voltage compensation coefficient of each pixel in described liquid crystal panel in each row and the distance between be expert at axis and corresponding each pixel;
Generation module, for generating bucking voltage value according to the voltage compensation coefficient of described first pixel and described setting voltage value;
Output module, for exporting the first drive singal to described first pixel, the value of the driving voltage that described first drive singal comprises is described bucking voltage value.
6. liquid crystal panel drive according to claim 5, is characterized in that, described output module also for:
While the first pixel output drive signal, export the second drive singal to described second pixel, the value of the driving voltage that described second drive singal comprises is equal with setting voltage value.
7. liquid crystal panel drive according to claim 5, is characterized in that, described generation module specifically for:
Obtain described bucking voltage value, described bucking voltage value equals the voltage compensation coefficient of described first pixel and the product of described setting voltage value.
8. the liquid crystal panel drive according to any one of claim 5-7, is characterized in that, described acquisition module is also for the identification information that obtains described first pixel;
Described enquiry module also for: according to described first pixel and the identification information of be expert at predeterminable range between axis and described first pixel, obtain the voltage compensation coefficient of the first pixel.
9. a liquid crystal display, is characterized in that, comprises the liquid crystal panel drive according to any one of claim 5-8.
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| CN109903733A (en) * | 2019-04-11 | 2019-06-18 | 京东方科技集团股份有限公司 | Display device and its driving method |
| CN113948045A (en) * | 2020-07-17 | 2022-01-18 | 咸阳彩虹光电科技有限公司 | Display compensation method and display compensation device |
| WO2022033133A1 (en) * | 2020-08-09 | 2022-02-17 | 合肥奕斯伟集成电路有限公司 | Driving voltage compensation method, driving voltage compensation apparatus, and display apparatus |
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