CN105741812A - Display method of liquid crystal displayer, liquid crystal displayer and display device - Google Patents
Display method of liquid crystal displayer, liquid crystal displayer and display device Download PDFInfo
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
The invention discloses a display method of a liquid crystal displayer, the liquid crystal displayer and a display device. Frame image data to be displayed can be compensated according to a relation table of a pre-established grey-scale value and a corresponding compensation dosage, so that the grey-scale value of the frame image data to be displayed can be compensated, and the influence of a coupling voltage between a data line and a public electrode on a display picture of the liquid crystal displayer can be avoided. In the prior art, the compensation is performed on a public electrode signal of the public electrode. However, according to the invention, the compensation is performed on the grey-scale value of the image, so that the grey-scale value of each image can be compensated and the compensating precision is improved.
Description
Technical field
The present invention relates to Display Technique field, particularly to the display packing of a kind of liquid crystal display, liquid crystal display and display device.
Background technology
Along with developing rapidly of Display Technique, liquid crystal display is widely used in the various fields such as computer, TV, electronic watch.Liquid crystal display generally comprises: array base palte, the color membrane substrates being arranged oppositely with array base palte, and the liquid crystal layer between array base palte and color membrane substrates.Liquid crystal display be usually utilization be positioned at the pixel electrode of liquid crystal layer both sides and the voltage difference of public electrode to control the rotation of liquid crystal molecule, with control light by measure.
But in a liquid crystal display, owing to public electrode and data wire have part overlapping region, therefore parasitic capacitance is easily produced between public electrode and data wire, when the voltage of the data signal on data wire changes, can make the data signal on data wire that the common electrode signal on public electrode is produced coupling, cause occurring between data wire and public electrode coupled voltages, common electrode signal is produced interference, so that there is color abnormal problem in the display picture of liquid crystal display, for instance colour cast, crosstalk etc..
At present, generally individually is by increase hardware compensating circuit, common electrode signal is compensated, and avoids the coupled voltages between data wire and public electrode that liquid crystal display shows the impact of picture.But, adopting the mode that common electrode signal is compensated can there is following deficiency: (1) is limit due to the manufacturing process of liquid crystal display, by increase hardware compensating circuit, common electrode signal being compensated is cannot the homogeneity difference of liquid crystal display be compensated；(2) owing to hardware compensating circuit compatibility is poor, it is unsuitable for being applied in the small-size liquid crystal displays limited by topology layout；(3) when the size of liquid crystal display and resolution improve, owing to coupling electric capacity and signal delay influence of fading increase, when common electrode signal is compensated, owing to full frame shows that image all can be compensated by unified, it will cause that the compensation precision to liquid crystal display is not enough.
Summary of the invention
The embodiment of the present invention provides the display packing of a kind of liquid crystal display, liquid crystal display and display device, by employing, common electrode signal is compensated and the problem of Shortcomings in order to solving in prior art.
Therefore, embodiments provide the display packing of a kind of liquid crystal display, including:
Receive frame image data to be shown；
Described frame image data to be shown is compensated with the relation table of corresponding compensation dosage according to the grey decision-making pre-build；
Display according to the view data after compensating.
It is preferred that in the above-mentioned display method that the embodiment of the present invention provides, after receiving frame image data to be shown, before described frame image data to be shown is compensated, also include:
Judge that described frame image data to be shown is the need of compensation according to preset rules；
Described frame image data to be shown is compensated, specifically includes:
If judging, described frame image data to be shown needs to compensate, it is determined that go out the data needing to compensate in described frame image data to be shown；According to the grey decision-making pre-build with the relation table of corresponding compensation dosage to described frame image data to be shown needing the data compensated compensate.
Preferably, in the above-mentioned display method that the embodiment of the present invention provides, the viewing area of described liquid crystal display has an at least two subregion that the homogeneity of the coupled voltages according to public electrode divides, the relation table of the grey decision-making pre-build described in all corresponding one of each described subregion and corresponding compensation dosage；
According to the grey decision-making pre-build with the relation table of corresponding compensation dosage to described frame image data to be shown needing the data compensated compensate, specifically include:
Determine the subregion corresponding with the described data needing to compensate；
The data that described needs the are compensated grey decision-making pre-build corresponding to corresponding subregion compensates with the relation table of corresponding compensation dosage.
It is preferred that in the above-mentioned display method that the embodiment of the present invention provides, set up the relation table of grey decision-making and corresponding compensation dosage particularly as follows:
For each color, detection is fixed when the voltage of the public electrode of described liquid crystal display, and shows the brightness that during the solid-color image data of different grey decision-making, viewing area is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
It is preferred that in the above-mentioned display method that the embodiment of the present invention provides, for each described subregion set up grey decision-making and corresponding compensation dosage relation table particularly as follows:
For each color, detection is fixed when the voltage of the public electrode of described liquid crystal display, and shows the brightness that during the solid-color image data of different grey decision-making, described subregion is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
It is preferred that in the above-mentioned display method that the embodiment of the present invention provides, display according to the view data after compensating, specifically include:
Gray scale voltage is generated according to the view data after described compensation；
Apply described gray scale voltage to data wire to display.
Correspondingly, the embodiment of the present invention additionally provides a kind of liquid crystal display, including display floater, also includes:
Image receiving unit, is used for receiving frame image data to be shown；
Memory element, for storing the relation table of grey decision-making and the corresponding compensation dosage pre-build；
Compensating unit, described frame image data to be shown is compensated by the grey decision-making pre-build described in basis with the relation table of corresponding compensation dosage；
Described display floater, for displaying according to the view data after compensating.
It is preferred that in the above-mentioned liquid crystal display that the embodiment of the present invention provides, also include:
According to preset rules, judging unit, for judging that described frame image data to be shown is the need of compensation；
Described compensating unit is specifically for when described judging unit judges that described frame image data to be shown needs to compensate, determine the data needing to compensate in described frame image data to be shown, and with the relation table of corresponding compensation dosage, the data needing compensation in described frame image data to be shown are compensated according to the grey decision-making pre-build.
Preferably, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, the viewing area of described liquid crystal display has an at least two subregion that the homogeneity of the coupled voltages according to public electrode divides, the relation table of the grey decision-making pre-build described in all corresponding one of each described subregion and corresponding compensation dosage；
Described compensating unit is specifically for when described judging unit judges that described frame image data to be shown needs to compensate, determine the subregion corresponding with the described data needing to compensate, and the grey decision-making pre-build that the data that described needs are compensated are corresponding to corresponding subregion compensates with the relation table of corresponding compensation dosage.
It is preferred that in the above-mentioned liquid crystal display that the embodiment of the present invention provides, pre-build that described grey decision-making is as follows with the method for the relation table of corresponding compensation dosage:
For each color, detect when the voltage of the public electrode of described liquid crystal display is fixing, and show the brightness that during the solid-color image data of different grey decision-making, described viewing area is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
It is preferred that in the above-mentioned liquid crystal display that the embodiment of the present invention provides, pre-build that described grey decision-making is as follows with the method for the relation table of corresponding compensation dosage for each described subregion:
For each color, detect when the voltage of the public electrode of described liquid crystal display is fixing, and show the brightness that during the solid-color image data of different grey decision-making, described subregion is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
It is preferred that in the above-mentioned liquid crystal display that the embodiment of the present invention provides, described display floater is specifically for generating gray scale voltage according to the view data after described compensation, and displays to the data wire described gray scale voltage of applying.
Correspondingly, the embodiment of the present invention additionally provides a kind of display device, including any of the above-described kind of liquid crystal display that the embodiment of the present invention provides.
The display packing of liquid crystal display, liquid crystal display and the display device that the embodiment of the present invention provides, owing to frame image data to be shown can be compensated with the relation table of corresponding compensation dosage according to the grey decision-making pre-build, therefore can by the grey decision-making of frame image data to be shown is compensated, such that it is able to avoid coupled voltages between data wire and public electrode that liquid crystal display is shown the impact of picture.Owing to prior art being all compensate for the common electrode signal on public electrode, and the display packing of above-mentioned liquid crystal display, liquid crystal display and display device that the embodiment of the present application provides are by the grey decision-making of image is compensated, therefore can compensate for the grey decision-making of each pixel, thus improving compensation precision.
Accompanying drawing explanation
The flow chart of the display packing of the liquid crystal display that Fig. 1 provides for the embodiment of the present invention；
The display packing of the liquid crystal display that Fig. 2 provides for the embodiment of the present invention one is set up the flow chart of grey decision-making and the relation table of corresponding compensation dosage；
The relation schematic diagram of the relation of ideal gray level value and desired level and actual gray value and intrinsic brilliance when Fig. 3 is perfect condition；
The display packing of the liquid crystal display that Fig. 4 provides for the embodiment of the present invention two is set up the flow chart of grey decision-making and the relation table of corresponding compensation dosage for each subregion；
Common electric voltage Vcom is affected schematic diagram by the signal Data variation that Fig. 5 is the data wire of liquid crystal display；
One of structural representation of liquid crystal display that Fig. 6 provides for the embodiment of the present invention；
The two of the structural representation of the liquid crystal display that Fig. 7 provides for the embodiment of the present invention；
The three of the structural representation of the liquid crystal display that Fig. 8 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, clearly, below in conjunction with accompanying drawing, the detailed description of the invention of the display packing of liquid crystal display, liquid crystal display and display device that the embodiment of the present invention is provided is described in detail for technical scheme and advantage.
Embodiments provide the display packing of a kind of liquid crystal display, as it is shown in figure 1, comprise the following steps:
S101, receive frame image data to be shown；
Frame image data to be shown is compensated by the grey decision-making that S102, basis pre-build with the relation table of corresponding compensation dosage；
S103, according to compensate after view data display.
The display packing of the above-mentioned liquid crystal display that the embodiment of the present invention provides, owing to frame image data to be shown can be compensated with the relation table of corresponding compensation dosage according to the grey decision-making pre-build, therefore can by the grey decision-making of frame image data to be shown is compensated, such that it is able to avoid coupled voltages between data wire and public electrode that liquid crystal display is shown the impact of picture.Owing to prior art being all compensate for the common electric voltage on public electrode, and the display packing of the above-mentioned liquid crystal display that the embodiment of the present application provides is by the grey decision-making of image is compensated, therefore can compensate for the grey decision-making of each pixel, thus improving compensation precision.
Grey decision-making, be usually by the darkest and the brightest between brightness flop divide into some parts, in order to carry out screen intensity management and control.The image of display is typically all by many combination of pixels, and generally each pixel is made up of three sub-pixels of red, green, blue, it is possible to present many different colors, and the light source that each sub-pixel is behind can show different gray scales.Namely grey decision-making represents by the most secretly to the stratum level of brightness different the brightest.This intermediate level is more many, and the picture effect that can present is also more fine and smooth.At present, adopting 6bit panel or 8bit panel to realize image and show in general liquid crystal display, wherein, 8bit panel, it can show 8 powers of 2, i.e. 256 luminance levels, namely has 256 grey decision-making；6bit panel, it can show 6 powers of 2, i.e. 64 luminance levels, namely has 64 grey decision-making.Each pixel on the screen of liquid crystal display, the red, green, blue by different luminance levels combines, and ultimately forms different color point.The i.e. color change of each point on screen, is essentially all what the change of the grey decision-making by three sub-pixels of red, green, blue constituting this color point brought.
In the specific implementation, in the above-mentioned display method that the embodiment of the present invention provides, display according to the view data after compensating, specifically include:
Convert the view data after compensating to gray scale voltage for showing, and gray scale voltage is displayed.
Further, in the specific implementation, in the above-mentioned display method that the embodiment of the present invention provides, after receiving frame image data to be shown, before frame image data to be shown is compensated, also include:
Judge that frame image data to be shown is the need of compensation according to preset rules；
Frame image data to be shown is compensated, specifically includes:
If judging, frame image data to be shown needs to compensate, it is determined that go out the data needing to compensate in frame image data to be shown；According to the grey decision-making pre-build with the relation table of corresponding compensation dosage to frame image data to be shown needing the data compensated compensate.
During general liquid crystal display display image, and not all view data is required for compensating, normally due to data wire produces to couple with public electrode, the common electric voltage on public electrode is made to carry coupled voltages, thus the display colour cast of picture, the crosstalk phenomenon that cause need not compensate for when human eye can accept in scope, for instance be in high frequency refreshing frequency and update that lower picture, bad and image color the homogeneity of image color homogeneity be good and image color brightness not image within the specific limits.Therefore, in the specific implementation, in the above-mentioned display method that the embodiment of the present invention provides, preset rules can be: determines whether the colo(u)r bias when frame image data to be shown forms image frame is in the acceptable preset range of human eye, wherein, preset range is the scope being empirically derived.
The display packing of the above-mentioned liquid crystal display that the embodiment of the present invention provides is illustrated below by two embodiments.
Embodiment one,
The display packing of the above-mentioned liquid crystal display that the embodiment of the present invention provides may comprise steps of:
(1) frame image data to be shown is received；
(2) judge that frame image data to be shown is the need of compensation according to preset rules；
Specifically, it is possible to be determined by whether the frame image data to be shown colo(u)r bias when forming image frame is in human eye tolerance interval and judges that frame image data to be shown is the need of compensation；If it is determined that the colo(u)r bias that frame image data to be shown is when forming image frame is in human eye tolerance interval, then judge that this frame image data to be shown is made without compensating；If it is determined that the colo(u)r bias that frame image data to be shown is when forming image frame is not in human eye tolerance interval, then judge that this frame image data to be shown needs to compensate.
(3) if judging, frame image data to be shown needs to compensate, it is determined that go out the data needing to compensate in frame image data to be shown；According to the grey decision-making pre-build with the relation table of corresponding compensation dosage to frame image data to be shown needing the data compensated compensate.
(4) gray scale voltage is generated according to the view data after compensating；Apply gray scale voltage to data wire to display.
Wherein, as in figure 2 it is shown, pre-build that grey decision-making is as follows with the method for the relation table of corresponding compensation dosage:
S201, for each color, detection is fixed when the voltage of the public electrode of liquid crystal display, and the brightness that during the solid-color image data of display different grey decision-making, viewing area is corresponding.
Such as redness, when the voltage of the public electrode of liquid crystal display is fixed, detection LCD monitor shows the brightness that during the red solid-color image data of different grey decision-making, viewing area is corresponding, it is assumed that have 256 grey decision-making, then each grey decision-making all has corresponding brightness.
S202, set up the relation table of actual gray value and intrinsic brilliance according to the brightness that different grey decision-making are corresponding.
S203, by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition time ideal gray level value and desired level relation table compare.
S204, determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value.
(coupled voltages is likely to so that intrinsic brilliance brightens or dimmed as shown in Figure 3.Fig. 3 only makes for coupled voltages that intrinsic brilliance is dimmed to be illustrated), curve Q1 represents the relation of ideal gray level value and desired level during perfect condition, and curve Q2 represents the relation of actual gray value and intrinsic brilliance.It can be seen that desired level corresponding for grey decision-making Gm during perfect condition is Ln, namely put A1；And due to the existence of coupled voltages during actual displayed, cause that intrinsic brilliance corresponding for grey decision-making Gm is Lm, namely put A2.Therefore wanting the intrinsic brilliance obtained is Ln, namely need to be adjusted to intrinsic brilliance Lm brightness Ln, and the brightness of intrinsic brilliance Ln corresponding point A3, i.e. intrinsic brilliance Ln correspondence grey decision-making Gn, therefore can determine that each actual gray value needs the GTG difference compensated when reaching the brightness of perfect condition by said method, for instance GTG difference corresponding for actual gray value Gm in Fig. 3 is △ Gmn.
S205, set up the relation table of grey decision-making and corresponding compensation dosage according to the GTG difference that each actual gray value is corresponding.
Above-described embodiment one passes through the whole viewing area of liquid crystal display as a region, and the relation table of a grey decision-making and corresponding compensation dosage is established for this region, the compensation namely only undertaken by the image to be displayed data in the relation table of a grey decision-making and the corresponding compensation dosage viewing area to liquid crystal display.
But in actual applications, owing to the homogeneity of preparation technology there are differences, the coupled voltages of the public electrode that the coupling of the data wire in general liquid crystal display zones of different and public electrode causes can difference to some extent.Therefore, in order to improve the quality of liquid crystal display zones of different display image frame further, by the homogeneity of the coupled voltages of public electrode the viewing area of liquid crystal display can be divided into many sub regions, and be respectively directed to every sub regions and set up the relation table of a corresponding grey decision-making and corresponding compensation dosage.Thus different relation tables can be adopted when compensating to compensate for different subregions.Concrete principle such as embodiment two.
Embodiment two,
In the specific implementation, the viewing area of liquid crystal display has at least two subregion that the homogeneity of the coupled voltages according to public electrode divides, the relation table of all corresponding grey decision-making pre-build of each subregion and corresponding compensation dosage.
In the present embodiment, the step (1) of the display packing of liquid crystal display is identical with the step (1) in embodiment one and (2) with (2), is not described in detail here.
In the present embodiment, the display packing of liquid crystal display also includes:
(3) if judging, frame image data to be shown needs to compensate, it is determined that go out the data needing to compensate in frame image data to be shown.
(4) determine the subregion corresponding with the data needing compensation, compensate with the relation table of corresponding compensation dosage needing the data the compensated grey decision-making pre-build corresponding to corresponding subregion.
(5) gray scale voltage is generated according to the view data after compensating；Apply gray scale voltage to data wire to display.
Specifically, pre-build for whole viewing area, grey decision-making pre-builds that grey decision-making is similar to the method for the relation table of corresponding compensation dosage to embodiment one with the method for the relation table of corresponding compensation dosage for each subregion.Concrete as shown in Figure 4, including:
S401, for each color, detection is fixed when the voltage of the public electrode of liquid crystal display, and the brightness that during the solid-color image data of the different grey decision-making of display, this subregion is corresponding.
Such as redness, when the voltage of the public electrode of liquid crystal display is fixed, in detection LCD monitor, all subregion shows brightness corresponding during the red solid-color image data of different grey decision-making, it is assumed that have 256 grey decision-making, then each grey decision-making all has corresponding brightness.
S402, set up the relation table of actual gray value and intrinsic brilliance according to the brightness that different grey decision-making are corresponding.
S403, by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition time ideal gray level value and desired level relation table compare.
S404, determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value.
S405, set up the relation table of grey decision-making and corresponding compensation dosage according to the GTG difference that each actual gray value is corresponding.
Further, in embodiment two, before the viewing area of liquid crystal display is divided into many sub regions, it is necessary to the homogeneity of the coupled voltages of public electrode in the viewing area of detection LCD monitor.Therefore in the specific implementation, it is possible in viewing area, select multiple pixel region, the coupled voltages of public electrode of each pixel region under detection the same terms respectively, coupled voltages difference pixel region within the specific limits is divided into a sub regions.
In the specific implementation, the coupled voltages of public electrode can generally be obtained in the following way:
(1) gather the analogue signal of common electric voltage in each pixel region, and the common electric voltage analogue signal collected temporarily is stored.
(2) the common electric voltage analogue signal temporarily stored is digitized.
In the specific implementation, on a timeline common electric voltage analogue signal is digitized, is converted into discretely-timed signal by time-continuous signal.Such as often overturn the length as a discrete time of the time once using the polarity of liquid crystal display.
(3) according to the data after digitized, the coupled voltages of public electrode is calculated by r.m.s. mode.
In the specific implementation, it is possible to pass through formulaCalculate the coupled voltages (Vcom) of public electroderms, wherein, (Vcom)nFor the voltage of public electrode in not instantaneous value in the same time, N is sampling number.Wherein sampling interval scope: be the scanning the first row pixel time to last column pixel, the minimum time for scanning one-row pixels to the maximum.Calculate (Vcom)rmsConcrete sampling interval scope, sampling number chooses, it is necessary to debug according to the practical situation of display floater.Such as, the polarity of liquid crystal display often scans a line and overturns once, as it is shown in figure 5, Q1, Q2, Q3 ... represent the instantaneous value of the voltage of public electrode when scanning each row pixel successively respectively.
Due to the existence of above-mentioned coupled voltages, liquid crystal display can be shown that picture impacts.For red sub-pixel, green sub-pixels and blue subpixels that liquid crystal display has, it is assumed that when liquid crystal display not compensated, the grey decision-making of red sub-pixel is G1, and brightness is L1；The grey decision-making of green sub-pixels is G2, and brightness is L2；The grey decision-making of blue subpixels is G3, and brightness is L3；Owing to liquid crystal display can be shown that picture impacts by coupled voltages, may result in the brightness when brightness L1 of red sub-pixel compares perfect condition on the low side or higher, brightness when the brightness L2 of green sub-pixels compares perfect condition is higher or on the low side, brightness when the brightness L1 of blue subpixels compares perfect condition is on the low side or higher, and the color that red sub-pixel, green sub-pixels and blue subpixels combination obtain so can be made the situation of colour cast occur.
The display packing of liquid crystal display provided by the invention can adjust the brightness of these three sub-pixel respectively by compensating the grey decision-making of red sub-pixel, green sub-pixels and blue subpixels respectively.It is compensated rear grey decision-making G1+ △ G1, it is possible to the brightness L1 ' when making the brightness of red sub-pixel rise or fall as perfect condition by the grey decision-making of red sub-pixel is compensated；The grey decision-making G2+ △ G2 of the green sub-pixels after being in like manner compensated, it is possible to the brightness L2 ' when making the brightness of green sub-pixels down or up for perfect condition；And the grey decision-making G3+ △ G3 of the blue subpixels after being compensated, it is possible to the brightness L3 ' when making the brightness of blue subpixels rise or fall as perfect condition.Therefore, combine, by the red sub-pixel after compensating, green sub-pixels and blue subpixels, the color displays obtained normal.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of liquid crystal display, as shown in Figure 6, and including:
Image receiving unit 10, is used for receiving frame image data to be shown；
Memory element 20, for storing the relation table of grey decision-making and the corresponding compensation dosage pre-build；
Compensating unit 30, for compensating frame image data to be shown with the relation table of corresponding compensation dosage according to the grey decision-making pre-build；
Display floater 40, for displaying according to the view data after compensating.
The above-mentioned liquid crystal display that the embodiment of the present invention provides, owing to frame image data to be shown can be compensated with the relation table of corresponding compensation dosage according to the grey decision-making pre-build, therefore can by the grey decision-making of frame image data to be shown is compensated, such that it is able to avoid coupled voltages between data wire and public electrode that liquid crystal display is shown the impact of picture.Owing to prior art being all compensate for the common electrode signal on public electrode, and the display packing of the above-mentioned liquid crystal display that the embodiment of the present application provides is by compensating grey decision-making, therefore can compensate for the grey decision-making of each pixel, such that it is able to improve compensation precision.
Specifically, in the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, display floater is specifically for generating gray scale voltage according to the view data after compensating, and displays to data wire applying gray scale voltage.
Further, in the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, as it is shown in fig. 7, also include:
According to preset rules, judging unit 50, for judging that frame image data to be shown is the need of compensation；
Compensating unit 30 is specifically for when judging unit judges that frame image data to be shown needs to compensate, determine the data needing to compensate in frame image data to be shown, and with the relation table of corresponding compensation dosage, the data needing compensation in frame image data to be shown are compensated according to the grey decision-making pre-build.
In the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, pre-build that grey decision-making is as follows with the method for the relation table of corresponding compensation dosage:
For each color, detect when the voltage of the public electrode of liquid crystal display is fixing, and show the brightness that during the solid-color image data of different grey decision-making, viewing area is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
In the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, the viewing area of liquid crystal display has at least two subregion that the homogeneity of the coupled voltages according to public electrode divides, the relation table of all corresponding grey decision-making pre-build of each subregion and corresponding compensation dosage；
Compensating unit is specifically for when judging unit judges that frame image data to be shown needs to compensate, determine and need subregion corresponding to data compensated, and to needing the data the compensated grey decision-making pre-build corresponding to corresponding subregion to compensate with the relation table of corresponding compensation dosage.
Specifically, in the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, pre-build that grey decision-making is as follows with the method for the relation table of corresponding compensation dosage for each subregion:
For each color, detect when the voltage of the public electrode of liquid crystal display is fixing, and show the brightness that during the solid-color image data of different grey decision-making, subregion is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
Owing to the relation table of above-mentioned grey decision-making with corresponding compensation dosage is to pre-build, therefore, in the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, as shown in Figure 8, also include relation table and set up unit 60, for setting up the grey decision-making relation table with corresponding compensation dosage.
Specifically, in the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, as shown in Figure 8, also include: coupled voltages detection unit 70, for obtaining the coupled voltages of public electrode.
In the specific implementation, coupled voltages detection unit can also be not provided with in liquid crystal display, when detecting before the display floater in liquid crystal display is dispatched from the factory, by having the equipment of coupled voltages detection unit display floater carried out the detection of coupled voltages, and the coupled voltages obtained is stored, so can reduce liquid crystal display for additionally arranging coupled voltages the detection cost of unit, space.
Specifically, in the specific implementation, in the above-mentioned liquid crystal display that the embodiment of the present invention provides, as shown in Figure 8, also include: control debugging unit 80, set up unit 60 for control planning table and set up the relation table of grey decision-making and corresponding compensation dosage；And control coupled voltages detection unit 70 obtains the coupled voltages of public electrode.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, including any of the above-described kind of liquid crystal display that the embodiment of the present invention provides.This display device can be: any product with display function or the parts such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.Other requisite ingredient of this display device is and it will be apparent to an ordinarily skilled person in the art that have, do not repeat at this, also should not be taken as limiting the invention.The enforcement of this display device may refer to the embodiment of above-mentioned encapsulating structure, repeats part and repeats no more.
The display packing of liquid crystal display, liquid crystal display and the display device that the embodiment of the present invention provides, owing to frame image data to be shown can be compensated with the relation table of corresponding compensation dosage according to the grey decision-making pre-build, therefore can by the grey decision-making of frame image data to be shown is compensated, such that it is able to avoid coupled voltages between data wire and public electrode that liquid crystal display is shown the impact of picture.Owing to prior art being all compensate for the common electrode signal on public electrode, and the display packing of above-mentioned liquid crystal display, liquid crystal display and display device that the embodiment of the present application provides are by the grey decision-making of image is compensated, therefore can compensate for the grey decision-making of each pixel, thus improving compensation precision.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (13)
1. the display packing of a liquid crystal display, it is characterised in that including:
Receive frame image data to be shown；
Described frame image data to be shown is compensated with the relation table of corresponding compensation dosage according to the grey decision-making pre-build；
Display according to the view data after compensating.
2. display packing as claimed in claim 1, it is characterised in that after receiving frame image data to be shown, before described frame image data to be shown is compensated, also include:
Judge that described frame image data to be shown is the need of compensation according to preset rules；
Described frame image data to be shown is compensated, specifically includes:
If judging, described frame image data to be shown needs to compensate, it is determined that go out the data needing to compensate in described frame image data to be shown；According to the grey decision-making pre-build with the relation table of corresponding compensation dosage to described frame image data to be shown needing the data compensated compensate.
3. display packing as claimed in claim 2, it is characterized in that, the viewing area of described liquid crystal display has an at least two subregion that the homogeneity of the coupled voltages according to public electrode divides, the relation table of the grey decision-making pre-build described in all corresponding one of each described subregion and corresponding compensation dosage；
According to the grey decision-making pre-build with the relation table of corresponding compensation dosage to described frame image data to be shown needing the data compensated compensate, specifically include:
Determine the subregion corresponding with the described data needing to compensate；
The data that described needs the are compensated grey decision-making pre-build corresponding to corresponding subregion compensates with the relation table of corresponding compensation dosage.
4. display packing as claimed in claim 1 or 2, it is characterised in that set up the relation table of grey decision-making and corresponding compensation dosage particularly as follows:
For each color, detection is fixed when the voltage of the public electrode of described liquid crystal display, and shows the brightness that during the solid-color image data of different grey decision-making, viewing area is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
5. display packing as claimed in claim 3, it is characterised in that for each described subregion set up grey decision-making and corresponding compensation dosage relation table particularly as follows:
For each color, detection is fixed when the voltage of the public electrode of described liquid crystal display, and shows the brightness that during the solid-color image data of different grey decision-making, described subregion is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
6. the display packing as described in any one of claim 1-3, it is characterised in that display according to the view data after compensating, specifically include:
Gray scale voltage is generated according to the view data after described compensation；
Apply described gray scale voltage to data wire to display.
7. a liquid crystal display, including display floater, it is characterised in that also include:
Image receiving unit, is used for receiving frame image data to be shown；
Memory element, for storing the relation table of grey decision-making and the corresponding compensation dosage pre-build；
Compensating unit, described frame image data to be shown is compensated by the grey decision-making pre-build described in basis with the relation table of corresponding compensation dosage；
Described display floater, for displaying according to the view data after compensating.
8. liquid crystal display as claimed in claim 7, it is characterised in that also include:
According to preset rules, judging unit, for judging that described frame image data to be shown is the need of compensation；
Described compensating unit is specifically for when described judging unit judges that described frame image data to be shown needs to compensate, determine the data needing to compensate in described frame image data to be shown, and with the relation table of corresponding compensation dosage, the data needing compensation in described frame image data to be shown are compensated according to the grey decision-making pre-build.
9. liquid crystal display as claimed in claim 8, it is characterized in that, the viewing area of described liquid crystal display has an at least two subregion that the homogeneity of the coupled voltages according to public electrode divides, the relation table of the grey decision-making pre-build described in all corresponding one of each described subregion and corresponding compensation dosage；
Described compensating unit is specifically for when described judging unit judges that described frame image data to be shown needs to compensate, determine the subregion corresponding with the described data needing to compensate, and the grey decision-making pre-build that the data that described needs are compensated are corresponding to corresponding subregion compensates with the relation table of corresponding compensation dosage.
10. liquid crystal display as claimed in claim 7 or 8, it is characterised in that pre-build that described grey decision-making is as follows with the method for the relation table of corresponding compensation dosage:
For each color, detect when the voltage of the public electrode of described liquid crystal display is fixing, and show the brightness that during the solid-color image data of different grey decision-making, described viewing area is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
11. liquid crystal display as claimed in claim 9, it is characterised in that pre-build that described grey decision-making is as follows with the method for the relation table of corresponding compensation dosage for each described subregion:
For each color, detect when the voltage of the public electrode of described liquid crystal display is fixing, and show the brightness that during the solid-color image data of different grey decision-making, described subregion is corresponding；
The relation table of actual gray value and intrinsic brilliance is set up according to the brightness that different grey decision-making are corresponding；
During by the relation table of the actual gray value of foundation and intrinsic brilliance and perfect condition, ideal gray level value compares with the relation table of desired level；
Determine the GTG difference when intrinsic brilliance is equal with desired level, between actual gray value and ideal gray level value；
The relation table of grey decision-making and corresponding compensation dosage is set up according to the GTG difference that each actual gray value is corresponding.
12. the liquid crystal display as described in any one of claim 7-9, it is characterised in that described display floater is specifically for generating gray scale voltage according to the view data after described compensation, and displays to the data wire described gray scale voltage of applying.
13. a display device, it is characterised in that include the liquid crystal display as described in any one of claim 7-12.
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Application publication date: 20160706 |