CN105096892B - Image display method and liquid crystal display device - Google Patents
Image display method and liquid crystal display device Download PDFInfo
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- CN105096892B CN105096892B CN201510556902.8A CN201510556902A CN105096892B CN 105096892 B CN105096892 B CN 105096892B CN 201510556902 A CN201510556902 A CN 201510556902A CN 105096892 B CN105096892 B CN 105096892B
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Abstract
The embodiment of the invention provides a liquid crystal display device. The device comprises an image processor, a time schedule controller and a display panel. The image processor is used for receiving an input image and scaling the input image to generate a to-be-displayed image. The resolution of the to-be-display image in the row direction is the same with the resolution of a liquid crystal panel in the row direction. The resolution of the to-be-display image in the column direction is one half the resolution of the liquid crystal panel in the column direction. The time schedule controller is used for receiving a vertical initial signal, and then outputting two vertical clock pulse signals to a gate driver under the pulse action of the vertical initial signal. The liquid crystal panel is used for receiving the vertical initial signal and the vertical clock signals and then displaying the to-be-displayed image. According to the technical scheme of the invention, the refreshing frequency of the liquid crystal panel is increased. At the same time, original image pixels are not influenced at all.
Description
Technical field
The present invention relates to image display technology field, more particularly to a kind of method for displaying image and liquid crystal indicator.
Background technology
Liquid crystal indicator needs to refresh the picture for showing with certain frequency during display image, with display
The progress of technology, the requirement of public on images also more and more higher, when there is larger difference between consecutive frame, adopts more display terminal
With motion compensation technique, carry out the process of interleave to reduce the shake of image.But it is of the prior art to receive and display surface
Plate has after the pending image of equal resolution, and the display of image is carried out by the way of refreshing line by line, and refreshing frequency is subject to
The restriction of liquid crystal molecule response speed, refreshing frequency is relatively low, it is impossible to meet the demand of dynamic compensation technology.With 4K2K 60HZ's
As a example by panel, due to the restriction of liquid crystal molecule response speed, the panel receives the pending image of 4K2K, with the frequency of 60HZ
Refresh line by line, refreshing frequency is low so that the limited amount of interleave, can not still meet the demand of moving image compensation.
The content of the invention
The present invention there is provided a kind of method for displaying image and liquid crystal indicator, by adopting what is refreshed parallel with duplicate rows
Display floater, and improve image procossing mode, improves the refreshing frequency of liquid crystal indicator, while less image impairment.
The invention provides a kind of liquid crystal indicator, including liquid crystal panel, liquid crystal panel includes gate drivers and source
Driver, also includes：Image processor, for receives input image, and zooms in and out to be shown to generate to input picture
Image, the resolution of the line direction of image to be displayed is identical with the resolution of liquid crystal panel line direction, the row side of image to be displayed
To resolution for liquid crystal panel column direction resolution half；Time schedule controller, for vertical to gate drivers output
Initial signal, and export two vertical clock pulses to gate drivers under the pulse of vertical initial signal；Liquid crystal panel, uses
In the vertical initial signal and vertical clock pulse that are received according to gate drivers, and waiting of receiving of source plate driver shows
Diagram picture carries out image and shows.
Present invention also offers a kind of method for displaying image, is applied to liquid crystal indicator, including：Image processor is received
Input picture, and input picture is zoomed in and out to generate image to be displayed, the resolution and liquid of the line direction of image to be displayed
The resolution of crystal panel line direction is identical, and the resolution of the column direction of image to be displayed is the resolution of liquid crystal panel column direction
Half；Time schedule controller to the gate drivers of liquid crystal panel export vertical initial signal, and in the pulse of vertical initial signal
It is lower to export two vertical clock pulses to gate drivers；The vertical initial signal that liquid crystal panel is received according to gate drivers
Carry out image and show with vertical clock pulse, and the image to be displayed that receives of source electrode driver.
The liquid crystal indicator that the application is provided includes image processor, time schedule controller, is provided with gate drivers
With the liquid crystal panel of source electrode driver.Wherein, image processor, for receives input image, and zooms in and out to input picture
To generate image to be displayed, the resolution of the line direction of image to be displayed is identical with the resolution of liquid crystal panel line direction, waits to show
The resolution of the column direction of diagram picture is the half of the resolution of liquid crystal panel column direction；Time schedule controller, for driving to grid
Dynamic device exports vertical initial signal, and exports two vertical clock arteries and veins to gate drivers under the pulse of vertical initial signal
Punching.Because first vertical clock signal under the pulse of vertical initial signal can control the first row thin film of liquid crystal panel
Transistor turns, the duration of conducting is consistent with the pulse duration of vertical initial signal signal.In second vertical clock pulse letter
When number starting, the second row thin film transistor (TFT) begins to turn on, the duration of conducting also with the pulse duration one of vertical initial signal signal
Cause, simultaneously because under a vertical initial signal pulse, the output of two vertical clock pulse pulse signals is provided with, therefore
There is duration simultaneously switched in the first row thin film transistor (TFT) and the second row thin film transistor (TFT), due to the first row thin film transistor (TFT) and
Second row thin film transistor (TFT) can be switched on simultaneously, therefore the duration that liquid crystal panel refreshes used by whole film transistor rows is reduced
Half, and then cause the refreshing frequency of liquid crystal panel to improve one times, be conducive to carrying out moving image compensation.Simultaneously because treating
The resolution of display image column direction is the half of the resolution of liquid crystal panel column direction, it is possible to carried out image complete
Show, because the vertical initial signal signal and vertical clock pulse signal of time schedule controller cause the refreshing frequency of liquid crystal panel
It is doubled, therefore within the identical time, prior art only shows piece image, and the scheme of the application can show two
Two field picture.Simultaneously because half of the resolution of image to be displayed column direction for the resolution of liquid crystal panel column direction, so
Liquid crystal panel can present the total data of input picture in the identical display time, with more preferable display effect.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of liquid crystal indicator in the embodiment of the present invention；
Fig. 2 is the configuration diagram of liquid crystal panel in the embodiment of the present invention；
Fig. 3 is the configuration diagram of thin film transistor (TFT) in the embodiment of the present invention；
Fig. 4 is driver' s timing figure of the prior art；
Fig. 5 is a kind of driver' s timing figure in the embodiment of the present invention；
Fig. 6 is another the driver' s timing figure in the embodiment of the present invention.
Fig. 7 is the method flow diagram in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In describing the invention, it is to be understood that the side of the instruction such as term " level ", " line direction ", " column direction "
Position or position relationship are, based on method shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description,
Rather than indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, because
This is not considered as limiting the invention.Term " first ", " second " be only used for describe purpose, and it is not intended that indicate or
Hint relative importance either imply indicate or imply including one or more technical characteristic.Thus, define
One or more this feature can be expressed or be implicitly included to the feature of " first ", " second ".In description of the invention
In, unless otherwise stated, " multiple " are meant that two or more.
As shown in figure 1, present embodiments providing a kind of liquid crystal indicator 101 including image processor 102, sequencing contro
Device 103, liquid crystal panel 104.
Image processor 102 is used for receives input image, and input picture is zoomed in and out to generate image to be displayed, treats
The resolution of the line direction of display image is identical with the resolution of liquid crystal panel line direction, the resolution of the column direction of image to be displayed
Rate is the half of the resolution of liquid crystal panel column direction.In the present embodiment, the resolution of liquid crystal panel can be 4K2K, and it is brushed
New frequency can be 60HZ.Certainly, those skilled in the art can also be using other settings.
Specifically, the image of image processor receives input, line direction is converted to by image conversion by input picture
Resolution it is identical with the resolution of liquid crystal panel line direction, the resolution of column direction is the resolution of liquid crystal panel column direction
The image to be displayed of half.For example, if the resolution of real panel is 4K2K, the image to be displayed after scaling point
Resolution is 4K1K.The mode of image conversion, can adopt any one technology in existing image scaling.
By the way that the resolution of the column direction of image is scaled into the one of liquid crystal panel column direction resolution during scaling
Half so that image output can preferably coordinate the scheme of follow-up duplicate rows Concurrent Display, and all figures of original image can be presented
As content, compared to only exporting odd-line pixels image or only export even rows image, the mode provided in the present embodiment
Superior technique effect can be presented.
Time schedule controller 103 is used for, for exporting vertical initial signal to the gate drivers of liquid crystal panel, and vertical
Two vertical pulses all the time are exported under initial signal to gate drivers.
Concretely, time schedule controller (Time Controller, abbreviation Tcon), is such as source for generating control signal
Driver provide need source electrode driver latch (latch signal for source driver, abbreviation TP) signal and
Enable control (polarity inversion signal for sorce driver, abbreviation POL) signal of output data, its
In, TP controls the latch and output of each row data message, such as, during TP signal high level, control data line is latched into row
In memorizer, during low level, data line is discharged, liquid crystal capacitance is charged, POL is used to control liquid crystal molecular polarity inversion；For
Gate drivers provide vertical clock signal (Clock Pulse Vertical, abbreviation CPV) signal, the vertical starting letter for needing
Number (Start Vertical, abbreviation STV) signal, turntable driving output enable (scan driver output enable, letter
Claim OE) signal etc., vertical initial signal (Start Vertical, abbreviation STV) is used to controlling liquid crystal panel, and to start a frame new
Scanning, vertical clock signal (Clock Pulse Vertical, abbreviation CPV) is used to control liquid crystal panel per a line film crystal
The conducting of pipe (Thin Film Transistor, abbreviation TFT), vertically all the time signal is known as shift signal again, hangs down at one
The rising edge of straight signal all the time, gate drivers can turn on next line thin film transistor (TFT) (Thin Film Transistor, abbreviation
TFT)。
Further, liquid crystal panel 104 include gate drivers 1041, source electrode driver 1042, thin film transistor (TFT) 1043,
Liquid crystal molecule.Time schedule controller to liquid crystal panel exports vertical initial signal, vertical clock signal, specifically, time schedule controller
To the gate drivers output STV signals and CPV signals of liquid crystal panel, and two CPV pulses are kept under a STV pulse
Output.First vertical clock signal under the pulse of vertical initial signal can control the first row TFT of liquid crystal panel
Conducting, the duration of conducting is consistent with the pulse duration of STV signals.When second CPV signal starts, the second row TFT starts to lead
Logical, the duration of conducting is also consistent with the pulse duration of STV signals, simultaneously because under a STV pulse, being provided with two CPV
The output of pulse signal, therefore there is duration simultaneously switched in the first row TFT and the second row TFT, what this section was switched on simultaneously
Duration is used for the input of image, it is achieved that duplicate rows Concurrent Display.
Because the first row TFT and the second row TFT can be switched on simultaneously, therefore liquid crystal panel refreshes used by whole TFT rows
Duration reduce half, and then cause the refreshing frequency of liquid crystal panel to improve one times.
Further, sequence drivers 103 also export TP signals to the source electrode driver of liquid crystal panel, to be shown to control
The write of image.Concretely, it is to export TP signals, pulse and the CPV signals of TP signals to the source electrode driver of liquid crystal panel
The 2i impulsive synchronization, it is real as shown in figure 5, the rising edge of TP signals may begin at before the 2i pulse of CPV signals
Existing image to be displayed source electrode driver latch, the trailing edge of TP signals may begin at CPV signals the 2i pulse it
Afterwards, for controlling source electrode driver image to be displayed is write to simultaneously turning in 2i-1 row TFT and 2i row TFT.
Further, time schedule controller also exports OE signals to liquid crystal panel, and the present embodiment is using high level as OE signals
Pulse, the pulse of OE signals and 2i-1 impulsive synchronization of CPV signals so that in 2i-1 pulse of CPV signals, grid
Driver will not export high level as tft array, and TFT is not turned on, and reduce the probability of crosstalk generation.Concretely, on
State synchronous referring to：The rising edge of the pulse of OE signals is identical with the rising edge of the 2i-1 pulse of CPV signals, or, earlier than CPV
The rising edge of the 2i-1 pulse of signal；The trailing edge of the pulse of OE signals and the decline of the 2i-1 pulse of CPV signals
Along identical, or, be later than the 2i-1 pulse of CPV signals trailing edge and be not later than CPV signals the 2i pulse rising
Edge.This causes 2i-1 rows thin film transistor (TFT) and 2i row thin film transistor (TFT)s, only exists the time of common conducting, leads jointly non-
Logical time, 2i-1 rows thin film transistor (TFT) and 2i rows thin film transistor (TFT) are not turned on, and reduce the probability of crosstalk generation.
Liquid crystal panel 104, including gate drivers 1041 and source electrode driver 1042, receive for gate drivers
Vertical initial signal is shown with vertical signal all the time, and the image to be displayed that source electrode driver is received.
Concretely, liquid crystal panel includes gate drivers 1041, source electrode driver 1042, thin film transistor (TFT) 1043, also
Including liquid crystal molecule.Gate drivers, the STV signals received for basis and CPV signals, in conducting membrane transistor array
Corresponding thin film transistor (TFT)；Source electrode driver, for according to the image to be displayed for receiving, writing in the thin film transistor (TFT) of conducting
Enter view data, thin film transistor (TFT) stores corresponding electric charge according to the view data of write in storage capacitance, in storage electric charge
The voltage that formed of electric charge can maintain the rotation of liquid crystal molecule, so as to complete the display of image to be displayed.
Because the STV signals and CPV signals of time schedule controller cause the refreshing frequency of liquid crystal panel to be doubled, therefore
Within the identical time, prior art only shows piece image, but the refreshing frequency of image is relatively low.This programme passes through CPV signals
With the control of STV signals so that in the case of the restriction of liquid crystal molecule response speed, the refreshing frequency of liquid crystal panel improves
One times, be conducive to carrying out moving image compensation, while alloing existing input picture to show completely, do not carry out image slices
Plain cuts.
In the present embodiment, the framework of liquid crystal panel is as shown in Fig. 2 brilliant including gate drivers, source electrode driver, thin film
Body pipe (Thin Film Transistor, abbreviation TFT) array, is arranged along the raster data model line of line direction setting and along column direction
Source drive line, each thin film transistor (TFT) with connected by the raster data model line and source drive line at its position
Connect, i.e. each raster data model line drives a line TFT, each source drive line to carry out data write for string TFT.In detail
Say, the structural representation of every TFT can be with as shown in figure 3, the electric capacity in TFT be used to store electric charge, the electric charge liquid crystal of storage
The liquid crystal molecule of panel produces the rotation of respective degrees, to carry out the display of image.In the present embodiment, if raster data model line has
When high level signal is input into, source drive line could be charged or discharge in electric capacity, if raster data model line is low level
During signal input, electric capacity will keep electric charge constant, so that liquid crystal molecule keeps corresponding rotation status.
In existing progressive scan, as shown in figure 4, when a frame picture starts transmission, time schedule controller to grid drives
Dynamic device sends a pulse of STV signals, and the pulse of a CPV signal, gate drivers are exported under the pulse of STV signals
After receiving the pulse of STV signals, i.e., when first CPV signals high level arrives, to the film crystal of liquid crystal panel the first row
Pipe (Thin Film Transistor, abbreviation TFT) exports a high level signal G1, controls the TFT conductings of the first row, so as to
Source electrode driver is charged to the storage capacitance of each pixel of the first row, and to show the pixel content of the first row, charging terminates
Afterwards, the electric charge in TFT can keep, until the scanning arrival of next frame, the wherein lasting duration of the high level of G1 and STV signals
Pulse duration is identical.When second CPV signals high level arrives, gate drivers to the TFT of the row of liquid crystal panel second is exported
One high level signal G2, controls the TFT conductings of the second row.Due to the pulse signal of a cycle during CPV signals, so
Under one STV signal pulse during the pulse of only one of which CPV, gate drivers at most turn at any time a line TFT, existing skill
In art, when second pulse signal of CPV signals starts, the G1 of the TFT outputs of the first row is changed into low level, turns off the first row
TFT, so as to source electrode driver is charged to the storage capacitance of each pixel of the second row, with the pixel for showing the second row
Hold, the like, the storage capacitance of each row of liquid crystal panel is charged line by line.
As shown in figure 5, the time schedule controller in the present embodiment is before every frame picture shows, to gate drivers STV is sent
First signal, and have two companies in the CPV signals that send to gate drivers of the moment of the above-mentioned STV signal pulses of correspondence
Continuous pulse, further, time schedule controller sends TP signals to source electrode driver, and the latch triggering edge of above-mentioned TP signals is opened
Start from CPV signals the 2i pulse start before, latch release along be located at the 2i CPV signal during.
For TFT, in the pulse of every STV signals, time schedule controller has two under STV signal pulse signals
The output of the pulse of individual CPV signals, therefore can simultaneously open two row TFT.The opening of TFT starts from the upper of a CPV signal pulses
Edge is risen, and the rising edge in next CPV signal pulses is displaced to next line and carries out high level output.But for this case,
There is the pulse output of two CPV signals under the pulse of vertical initial signal STV, therefore for the first row TFT,
t1At the moment, by first pulsing effect of CPV signals, TFT can be opened, its duration (t for opening1-t3Moment) and STV signal arteries and veins
Lasting duration is rushed consistent, hence across second pulse of CPV signals, when second pulse of CPV signals starts, i.e. t2
Moment, the second row TFT is started to open at so that the first row TFT and the second row TFT have the time period (t for opening simultaneously2-t3When
Carve), can be used for carrying out the input of image.
Particularly, time schedule controller to gate drivers send the pulse of STV signal when, gate drivers are received
After the pulse of STV signals, (the t when first high level of CPV signals arrives1Moment), to the thin film of liquid crystal panel the first row
Transistor (ThinFilm Transistor, abbreviation TFT) exports a high level signal G1, controls the TFT conductings of the first row,
Because this moment source electrode does not have data to write, the TFT of the first row does not receive image, conducting duration and the STV signals of the first row TFT
Pulse duration it is identical；(the t when second high level of CPV signals arrives2Moment), gate drivers are to the second row
TFT exports a high level, controls the conducting of the TFT of the second row, now tends to remain on the first row TFT, by sequential control
The rising edge of first pulse of the TP signals that device processed is exported to source electrode driver is located at before second pulse of CPV signals,
Therefore before second pulse of CPV signals, the first row pixel institute that source electrode driver is had been latched by input picture is right
The voltage answered, due to TP signals first pulse trailing edge in the 2nd CPV signal process, therefore, in second CPV letter
Number when, source electrode driver can will latch view data in the first row pixel corresponding to each tft array of voltage output, due to
Now the first row TFT and the second row TFT are thus on same column direction all in conducting state, the first row TFT and
The image that two row TFT are received is identical, for example, as shown in Fig. 2 a is identical with the image that b is received, and what c and d was received
Image is identical, due to the identical electric charge that is stored with the electric capacity of the TFT of the adjacent rows on same column direction, so corresponding liquid
The deflection state of brilliant molecule is also identical, you can show identical picture material；When the 3rd pulse of individual CPV signals starts
(t3Moment), gate drivers to the third line TFT exports a high level, controls the conducting of the 3rd TFT, meanwhile, the second row TFT
The high level signal of continuation can be still received, is tended to remain on, now, the conducting duration of the first row TFT is over, be received
To be a low level signal, the first row TFT is off state, now in the first row TFT can will storage electric charge keep
When next frame scan.Because in the 3rd pulse of CPV signals, source electrode no-voltage writes, so the second row TFT and the 3rd
The quantity of electric charge of row TFT keeps constant；(the t when the 4th pulse of CPV signals starts4Moment), gate drivers are to fourth line
TFT exports a high level, is the conducting of fourth line TFT, meanwhile, the third line TFT can still receive the high level signal of continuation, protect
Conducting state is held, the conducting duration of the second row TFT has received, what is received is a low level signal, and the second row TFT is in
Off state, now can keep the electric charge of storage when next frame scan in the second row TFT.Time schedule controller is to source drive
The rising edge of second pulse of the TP signals of device output is located at before the 4th pulse of CPV signals, therefore in CPV signals
Before 4th pulse, source electrode driver has been latched by the second row pixel in input picture, due to second of TP signals
Pulse falling edge during the 4th pulse of CPV signals, therefore, in the 4th pulse of CPV signals, source drive
The each tft array of voltage output corresponding to the second row pixel in the image to be displayed that device can be latched, due to now the third line
TFT and fourth line TFT are thus on same column direction all in conducting state, and the third line TFT and fourth line TFT are received
The image for arriving is identical.The like.Realize the duplicate rows parallel output of image.
Further, image processor can insert between the adjacent image to be displayed of two frames compensation image, due to when
The signal control of sequence controller, the refreshing frequency of display floater is doubled, in time in two adjacent frame images to be displayed
Insertion compensation image, original image to be displayed still can normally show, while the interests that are inserted with for compensating image improve final
Display effect.
Fig. 5 is the corresponding liquid crystal panel driver' s timing figure of the present embodiment, it is assumed that liquid crystal panel has n rows, and n grid are corresponded to respectively
Pole drive signal is G1, G2 ... Gn.For each two field picture, time schedule controller longitudinal direction grid sends a STV signal pulse,
And while two CPV signal pulses are sent to gate drivers in the pulse interval of STV signals, afterwards adjacent rows TFT have
There is the moment for simultaneously turning on.Duplicate rows parallel output can be realized by the control of TP signals, increase rate of scanning.The side of implementing
Formula is not as described above, here is repeated.
As shown in fig. 6, the gate drivers of liquid crystal panel also receive time schedule controller output OE signals, the present embodiment is with height
Level as OE signals pulse, the pulse of OE signals and 2i-1 impulsive synchronization of CPV signals, so that in the 2i- of CPV signals
During 1 pulse, gate drivers will not export high level as tft array, and TFT is not turned on, and reduce the possibility of crosstalk generation
Property.Concretely, above-mentioned synchronization is referred to：The rising edge of the pulse of OE signals and the rising edge of the 2i-1 pulse of CPV signals
It is identical；The trailing edge of the pulse of OE signals is identical with the rising edge of the 2i pulse of CPV signals.Thereby ensure that in CPV letters
Number 2i pulse when, have adjacent rows TFT to be simultaneously open, the write of view data can be simultaneously carried out, in CPV signals
The 2i-1 pulse be opened without TFT within the time between the 2i pulse, therefore the write of view data is timesharing,
Reduce the probability that TFT produces crosstalk.
Liquid crystal indicator can be liquid crystal TV set, panel computer (Pad, portable android device), handss
Machine etc..
The liquid crystal indicator that the application is provided includes image processor, time schedule controller, is provided with gate drivers
With the liquid crystal panel of source electrode driver.Wherein, image processor, for receives input image, and zooms in and out to input picture
To generate image to be displayed, the resolution of the line direction of image to be displayed is identical with the resolution of liquid crystal panel line direction, waits to show
The resolution of the column direction of diagram picture is the half of the resolution of liquid crystal panel column direction；Time schedule controller, for driving to grid
Dynamic device exports vertical initial signal, and exports two vertical clock arteries and veins to gate drivers under the pulse of vertical initial signal
Punching.Because first vertical clock signal under the pulse of vertical initial signal can control the first row thin film of liquid crystal panel
Transistor turns, the duration of conducting is consistent with the pulse duration of vertical initial signal signal.In second vertical clock pulse letter
When number starting, the second row thin film transistor (TFT) begins to turn on, the duration of conducting also with the pulse duration one of vertical initial signal signal
Cause, simultaneously because under a vertical initial signal pulse, the output of two vertical clock pulse pulse signals is provided with, therefore
There is duration simultaneously switched in the first row thin film transistor (TFT) and the second row thin film transistor (TFT), due to the first row thin film transistor (TFT) and
Second row thin film transistor (TFT) can be switched on simultaneously, therefore the duration that liquid crystal panel refreshes used by whole film transistor rows is reduced
Half, and then cause the refreshing frequency of liquid crystal panel to improve one times, be conducive to carrying out moving image compensation.Simultaneously because treating
The resolution of display image column direction is the half of the resolution of liquid crystal panel column direction, it is possible to carried out image complete
Show, because the vertical initial signal signal and vertical clock pulse signal of time schedule controller cause the refreshing frequency of liquid crystal panel
It is doubled, therefore within the identical time, prior art only shows piece image, and the scheme of the application can show two
Two field picture, due to image to be displayed column direction resolution for liquid crystal panel column direction resolution half, so identical
Liquid crystal panel can present the total data of input picture in the display time, with more preferable display effect display effect.
As shown in fig. 7, a kind of image processing method provided in the present embodiment, including：
S101：Image processor receives input image, and input picture is zoomed in and out to generate image to be displayed, wait to show
The resolution of the line direction of diagram picture is identical with the resolution of liquid crystal panel line direction, the resolution of the column direction of image to be displayed
For the half of the resolution of liquid crystal panel column direction；
S102：Time schedule controller to the gate drivers of liquid crystal panel export vertical initial signal, and in vertical starting letter
Number pulse under to gate drivers export two vertical clock pulses；
Particularly, liquid crystal panel includes gate drivers and source electrode driver, grid of the time schedule controller to liquid crystal panel
Driver exports vertical initial signal, and time schedule controller to gate drivers export vertical clock signal, and in vertical starting
Two pulses of vertical clock signal are exported during one pulse of signal.
S105：Vertical initial signal and vertical clock pulse that liquid crystal panel is received according to gate drivers, Yi Jiyuan
The image to be displayed that driver is received carries out image and shows；
Concretely, liquid crystal panel includes gate drivers 1041, source electrode driver 1042, thin film transistor (TFT) 1043, also
Including liquid crystal molecule.Gate drivers, the STV signals received for basis and CPV signals, in conducting membrane transistor array
Corresponding thin film transistor (TFT)；Source electrode driver, for according to the image to be displayed for receiving, writing in the thin film transistor (TFT) of conducting
Enter image, thin film transistor (TFT) stores corresponding electric charge according to the image graph picture of write in storage capacitance, stores the electricity in electric charge
The voltage that lotus is formed can drive liquid crystal molecule to be rotated
Particularly, liquid crystal panel, according to vertical initial signal, vertical clock signal that gate drivers are received, and
The image to be displayed that source electrode driver is received, carries out image and shows.Gate drivers, for according to the STV signals for receiving
With CPV signals, corresponding thin film transistor (TFT) in conducting membrane transistor array；Source electrode driver, for according to treating for receiving
Display image, in the thin film transistor (TFT) of conducting image graph picture is write.
Specific control process here is not repeated.
Further, also include after S102 steps：
Time schedule controller enables signal to gate drivers output turntable driving output, and turntable driving output enables signal
Initial time be not later than the 2i-1 vertical clock start of pulse, before ending at the 2i vertical clock pulse.
Concretely, time schedule controller enables signal, turntable driving output to gate drivers output turntable driving output
The initial time for enabling signal is not later than the 2i-1 vertical clock start of pulse, ends at the 2i vertical clock pulse
Before.For latching and discharging image to be displayed, to realize tft array in image write.
Further, also including after S104 steps：
Time schedule controller to source electrode driver exports source electrode driver latch signal, and source electrode latch signal is vertical with 2i
Clock pulses synchronization, so as to carry out image write while 2i-1 rows pixel and 2i row pixels.
Concretely, time schedule controller exports OE signals to the gate drivers of liquid crystal panel, to control in raster data model
Device CPV signals the 2i-1 pulse to without high level output, reducing the possibility that produces crosstalk between the 2i pulse
Property.
Above-mentioned two step can be parallel knowable to art technology person, it is also possible to first carries out one of those, then carries out
Another.
Further, can also include after step slol：Image processor is between adjacent two frames image to be displayed
Frame compensation image is inserted, wherein, the resolution for compensating image is identical with the resolution of image to be displayed.Due to refreshing frequency
Improve, therefore when image shows, same piece image can be adopted with two continuous frames, it is also possible to increase between adjacent two field pictures
One frame compensates image, so as to improve final display effect.
The liquid crystal indicator that the application is provided includes image processor, time schedule controller, is provided with gate drivers
With the liquid crystal panel of source electrode driver.Wherein, image processor, for receives input image, and zooms in and out to input picture
To generate image to be displayed, the resolution of the line direction of image to be displayed is identical with the resolution of liquid crystal panel line direction, waits to show
The resolution of the column direction of diagram picture is the half of the resolution of liquid crystal panel column direction；Time schedule controller, for driving to grid
Dynamic device exports vertical initial signal, and exports two vertical clock arteries and veins to gate drivers under the pulse of vertical initial signal
Punching.Because first vertical clock signal under the pulse of vertical initial signal can control the first row thin film of liquid crystal panel
Transistor turns, the duration of conducting is consistent with the pulse duration of vertical initial signal signal.In second vertical clock pulse letter
When number starting, the second row thin film transistor (TFT) begins to turn on, the duration of conducting also with the pulse duration one of vertical initial signal signal
Cause, simultaneously because under a vertical initial signal pulse, the output of two vertical clock pulse pulse signals is provided with, therefore
There is duration simultaneously switched in the first row thin film transistor (TFT) and the second row thin film transistor (TFT), due to the first row thin film transistor (TFT) and
Second row thin film transistor (TFT) can be switched on simultaneously, therefore the duration that liquid crystal panel refreshes used by whole film transistor rows is reduced
Half, and then cause the refreshing frequency of liquid crystal panel to improve one times, be conducive to carrying out moving image compensation.Simultaneously because treating
The resolution of display image column direction is the half of the resolution of liquid crystal panel column direction, it is possible to carried out image complete
Show, because the vertical initial signal signal and vertical clock pulse signal of time schedule controller cause the refreshing frequency of liquid crystal panel
It is doubled, therefore within the identical time, prior art only shows piece image, and the scheme of the application can show two
Two field picture, due to image to be displayed column direction resolution for liquid crystal panel column direction resolution half, so identical
Liquid crystal panel can present the total data of input picture in the display time, with more preferable display effect display effect.
Through the above description of the embodiments, those skilled in the art can be understood that, be description
It is convenient and succinct, only it is illustrated with the division of above-mentioned each functional module, in practical application, can as desired will be upper
State function distribution to be completed by different functional modules, will the internal structure of device be divided into different functional modules, to complete
All or part of function described above.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of liquid crystal indicator, including liquid crystal panel, the liquid crystal panel includes gate drivers and source electrode driver, its
It is characterised by, also includes：
Image processor, for receives input image, and zooms in and out to generate image to be displayed to the input picture, described
The resolution of the line direction of image to be displayed is identical with the resolution of the liquid crystal panel line direction, the row of the image to be displayed
The resolution in direction is the half of the resolution of the liquid crystal panel column direction；
Time schedule controller, for exporting vertical initial signal to the gate drivers, and in the arteries and veins of the vertical initial signal
Sweep away to the gate drivers and export two vertical clock pulses；
Liquid crystal panel, for the vertical initial signal that received according to the gate drivers and vertical clock pulse, Yi Jisuo
State the image to be displayed that source electrode driver receives and carry out image and show.
2. liquid crystal indicator as claimed in claim 1, it is characterised in that
Time schedule controller, is additionally operable to after output vertical clock signal, and to gate drivers output turntable driving output letter is enabled
Number, the initial time of the pulse that the turntable driving output enables signal is not later than the 2i-1 vertical clock pulse and starts
Moment, before ending at the 2i vertical clock pulse.
3. liquid crystal indicator as claimed in claim 1, it is characterised in that
Time schedule controller, is additionally operable to export source electrode driver latch signal, the source electrode latch signal and the to source electrode driver
The 2i vertical clock impulsive synchronization, so as to carry out image write while 2i-1 rows pixel and 2i row pixels.
4. liquid crystal indicator as claimed in claim 1, it is characterised in that
The resolution of the liquid crystal panel is 4K2K.
5. the liquid crystal indicator as described in claim 1-4 any one, it is characterised in that
Described image processor be additionally operable to insert between image to be displayed described in adjacent two frame a frame compensation image, wherein, institute
The resolution for stating compensation image is identical with the resolution of the image to be displayed.
6. a kind of method for displaying image, is applied to liquid crystal indicator, it is characterised in that；
Image processor receives input image, and the input picture is zoomed in and out to generate image to be displayed, it is described to wait to show
The resolution of the line direction of diagram picture is identical with the resolution of the liquid crystal panel line direction, the column direction of the image to be displayed
Resolution be the liquid crystal panel column direction resolution half；
Time schedule controller to the gate drivers of liquid crystal panel export vertical initial signal, and under the pulse of vertical initial signal
Two vertical clock pulses are exported to the gate drivers；
Vertical initial signal and vertical clock pulse that liquid crystal panel is received according to the gate drivers, and the liquid crystal
The image to be displayed that the source electrode driver of panel is received carries out image and shows.
7. method as claimed in claim 6, it is characterised in that
Exporting vertical initial signal to gate drivers, and to gate drivers output two under the pulse of vertical initial signal
After individual vertical clock pulse, time schedule controller to gate drivers output turntable driving output enables signal, the turntable driving
Output enables the initial time of signal and is not later than the 2i-1 vertical clock start of pulse, ends at described in 2i
Before vertical clock pulse.
8. method as claimed in claim 6, it is characterised in that
Exporting vertical initial signal to gate drivers, and to gate drivers output two under the pulse of vertical initial signal
After individual vertical clock pulse, time schedule controller to source electrode driver exports source electrode driver latch signal, and the source electrode latches letter
Number with 2i vertical clock impulsive synchronizations, so as to carry out image while 2i-1 rows pixel and 2i row pixels write
Enter.
9. method as claimed in claim 6, it is characterised in that
The resolution of the liquid crystal panel is 4K2K.
10. such as claim 6-9 any one methods described, it is characterised in that
In described image processor receives input image, and the input picture is zoomed in and out also wrapped with generating image to be displayed
Include：
Described image processor insert between image to be displayed described in adjacent two frame a frame compensation image, wherein, the compensation
The resolution of image is identical with the resolution of the image to be displayed.
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| CN106652972B (en) | 2017-01-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Processing circuit of display screen, display method and display device |
| CN106782268B (en) | 2017-01-04 | 2020-07-24 | 京东方科技集团股份有限公司 | Display system and driving method for display panel |
| CN109036240B (en) | 2017-06-09 | 2022-01-04 | 京东方科技集团股份有限公司 | Data transmission method, time sequence controller, source driving chip and display device |
| CN113077743A (en) * | 2021-03-17 | 2021-07-06 | Tcl华星光电技术有限公司 | Driving method and driver for improving refresh rate of display panel and display device |
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