CN107516496A - Liquid Crystal Display And Method For Driving - Google Patents

Liquid Crystal Display And Method For Driving Download PDF

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Publication number
CN107516496A
CN107516496A CN201710847683.8A CN201710847683A CN107516496A CN 107516496 A CN107516496 A CN 107516496A CN 201710847683 A CN201710847683 A CN 201710847683A CN 107516496 A CN107516496 A CN 107516496A
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CN
China
Prior art keywords
brightness level
vision signal
liquid crystal
crystal display
output
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CN201710847683.8A
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Chinese (zh)
Inventor
单剑锋
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惠科股份有限公司
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Priority to CN201710847683.8A priority Critical patent/CN107516496A/en
Publication of CN107516496A publication Critical patent/CN107516496A/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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

Abstract

The present embodiments relate to a kind of Liquid Crystal Display And Method For Driving, the liquid crystal display includes input logic device, memory, determiner and driver.The input logic device is used to input the vision signal from main frame.The memory is used for previous the brightness level and several conditionals for storing the vision signal that input logic device is inputted.The determiner is used to, by conditional corresponding to next brightness level substitution of the previous brightness level stored in memory and the next vision signal for being input to input logic device, brightness level is exported with determination.The driver exports brightness level to drive each pixel of the image of every frame to the liquid crystal cells of display image based on determined by determiner.The embodiment of the present invention is not required to globally to confirm whether vision signal is dynamic or inactive state, and vision signal can be modified by way of obtaining offset according to conditional, the problem of to improve operating lag.

Description

Liquid Crystal Display And Method For Driving

Technical field

The present embodiments relate to a kind of Liquid Crystal Display And Method For Driving, passes through more particularly to one kind according to condition Formula obtains the Liquid Crystal Display And Method For Driving that the mode of offset is modified to vision signal.

Background technology

In recent years, in addition to cathode-ray tube (CRT) display, liquid crystal display (LCD) has been widely used as Image display and the display of personal computer (PC) and television set.LCD is smaller than CRT monitor, lighter.In addition, Many improvement, including low geometric distortion and high image quality are carried out for LCD display performance.Therefore, liquid crystal display will The focus of the main flow display device used in video equipment as future.

However, the response characteristic due to liquid crystal in itself is poor, LCD has the potential problems of response time difference.That is, In the display used in industry, display is with the frame rate of frame each second 60 or every(1÷60 =)16.7 millisecond refreshes.It is another Aspect, the response time that current LCD is changed into white from black is 10 to 50ms, usually 20 to 30ms.This means display In a frame time it is shorter than the response time of most of liquid crystal.As a result, such as moving image as caused by LCD operating lag Visual perseveration becomes apparent with the problem of can not keeping up with fast moving image.

The content of the invention

In view of above-mentioned problem of the prior art, technical problems to be solved of the embodiment of the present invention are to propose a kind of liquid crystal Show device and its driving method, the problem of to be effectively improved operating lag.

Based on above-mentioned technical problems to be solved, the embodiment of the present invention provides following technical scheme:A kind of liquid crystal display, Including:

Input logic device, for inputting the vision signal from main frame;

Memory, the previous brightness level of the vision signal inputted for storing the input logic device and several Part formula;

Determiner, for described previously brightness level and being input to the input logic device by be stored in the memory In the conditional corresponding to next brightness level substitution of next vision signal, to determine to export brightness level;And

Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image.

Alternatively, the determiner substitutes into the previously brightness level and next brightness level to corresponding described After conditional, offset is obtained, and the offset is added in next brightness level.

Alternatively, the liquid crystal display also includes generator, for the offset to be added into next video On signal, to produce the output vision signal with the output brightness level.

Alternatively, the liquid crystal display also includes output logic device, for by with the institute for exporting brightness level Output vision signal is stated to export to the driver.

On the other hand, the embodiment of the present invention also provides a kind of driving method of liquid crystal display, suitable for being patrolled including input The liquid crystal display of device, memory, determiner and driver is collected, the driving method of the liquid crystal display comprises the following steps:

Input the vision signal from main frame;

Store previous the brightness level and several conditionals of the vision signal inputted;

Previously next brightness level of brightness level and next vision signal is substituted into the corresponding conditional, To determine to export brightness level;And

Each pixel of the image of every frame is driven to the liquid for showing described image based on the identified output brightness level Brilliant unit.

Alternatively, the driving method also comprises the following steps:

By substituting into previously brightness level and next brightness level to the corresponding conditional to obtain skew Amount;And

The offset is added to next brightness level.

Alternatively, the driving method also comprises the steps of:

The offset is added in next vision signal by the generator of the liquid crystal display, had to produce The output vision signal of the output brightness level.

Alternatively, the driving method also comprises the steps of:

It is by the output logic device of the liquid crystal display that the output vision signal with the output brightness level is defeated Go out to the driver.

Another aspect, the embodiment of the present invention also provide a kind of liquid crystal display, including:

Input logic device, for inputting the vision signal from main frame;

Memory, the previous brightness level of the vision signal inputted for storing the input logic device and several Part formula;

Determiner, for described previously brightness level and being input to the input logic device by be stored in the memory In the conditional corresponding to next brightness level substitution of next vision signal, to determine to export brightness level;

Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image;

Generator, for the thermal compensation signal to be added to next vision signal, there is the output brightness to produce The output vision signal of level;And

Logic device is exported, for the output vision signal with the output brightness level to be exported to the driver;

Wherein, the determiner substitutes into the previously brightness level and next brightness level to the corresponding conditional Afterwards, offset is obtained, and the offset is added in next brightness level.

By using above-mentioned technical proposal, the embodiment of the present invention at least has the advantages that:Liquid crystal display of the present invention Device and its driving method are modified by way of obtaining offset according to conditional to vision signal, can be effectively improved response The problem of delay.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, it is required in being described below to embodiment to use Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the functional block diagram of one embodiment of liquid crystal display of the present invention.

Fig. 2 is the thermal compensation signal and brightness schematic diagram of one embodiment of the liquid crystal display of the present invention.

Fig. 3 is the functional block diagram of another embodiment of the liquid crystal display of the present invention.

Fig. 4 is the flow chart of one embodiment of the driving method of the liquid crystal display of the present invention.

Fig. 5 is the flow chart of another embodiment of the driving method of the liquid crystal display of the present invention.

Fig. 6 is the flow chart of another embodiment of the driving method of the liquid crystal display of the present invention.

Fig. 7 is the functional block diagram of another embodiment of the liquid crystal display of the present invention.

Fig. 8 is the flow chart of the further embodiment of the driving method of the liquid crystal display of the present invention.

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 describes.Obviously, described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.

Fig. 1 to Fig. 2 is referred to, Fig. 1 is the functional block diagram of one embodiment of the liquid crystal display of the present invention;Fig. 2 is The thermal compensation signal and brightness schematic diagram of the liquid crystal display of the present invention.As shown in Figures 1 and 2, liquid crystal display 100 of the invention Including:Input logic device 110, memory 120, determiner 130 and driver 140.Wherein, the connection of input logic device 110 storage Device 120, memory 120 connect determiner 130, and determiner 130 connects driver 140.

Wherein, the above-mentioned input logic device 110 being previously mentioned is used to input the vision signal from main frame.Memory 120 is used In the previous brightness level for the vision signal that storage input logic device 110 is inputted.Determiner 130 is then to based on being stored in Previous brightness level in reservoir 120 and be input to input logic device 110 next vision signal next brightness level To judge whether to be superimposed thermal compensation signal (Dcp1 or Dcp2 in such as Fig. 2) to next vision signal (D in such as Fig. 2), with It is determined that output brightness level.Driver 140 drives regarding for every frame to export brightness level based on determined by determiner 130 Each pixel of the image of frequency signal to display image liquid crystal cells.Wherein, low mode is set after height before thermal compensation signal can adopt, Preceding high part can accelerate to draw high brightness, simultaneously as the increase of voltage, it is easier to reach desired level;Lower curtate part can accelerate bright afterwards The attenuating of degree, reduce the interference to next vision signal.The waveform of thermal compensation signal can also have different forms, as curve-like, It is stepped etc..

The determiner 130 of the present invention may include look-up table, and look-up table is stored with corresponding previous brightness level and next bright The liquid crystal cells brightness level spent level and determined, and judge whether superposition compensation according to the brightness level read by look-up table Signal.In one embodiment, the look-up table can be as shown in following table one.

Table one

As shown in upper table one, so that previous brightness level is 0, next brightness level is 90 as an example, it may be read into pair from look-up table The liquid crystal cells brightness level answered is 98, can know liquid crystal cells brightness level corresponding to next brightness level deficiency, and then Determiner 130 just judges that thermal compensation signal must be superimposed to next vision signal, so that the luminance bit of next vision signal will definitely Meet liquid crystal cells brightness level.

Conversely, so that next brightness level is 100 as an example, its corresponding liquid crystal cells brightness level is all 100, i.e., next Individual brightness level meets liquid crystal cells brightness level, therefore determiner 130 judges to be not necessary to be superimposed next vision signal in compensation letter Number.

Referring to Fig. 3, its functional block diagram for another embodiment of the liquid crystal display of the present invention.As shown in figure 3, liquid Crystal display 100 may also include generator 150, and it connects determiner 130, for be added to next video of thermal compensation signal to be believed Number, to produce the output vision signal with the output brightness level.In addition, in another embodiment, the liquid crystal Show that device 100 may also include output logic device 160, it connects generator 150 and driver 140, for that there will be the output bright The output vision signal of degree level is exported to driver 140.

Although foregoing during the liquid crystal display of the explanation present invention, illustrate the liquid crystal display of the present invention simultaneously Driving method concept, but for clarification, separately illustrate flow chart detailed description below.

Referring to Fig. 4, its flow chart for one embodiment of the driving method of the liquid crystal display of the present invention.Such as Fig. 4 It is shown, the driving method of liquid crystal display of the invention, suitable for including input logic device, memory, determiner and driver Liquid crystal display, it comprises the following steps:

Step S41:Input the vision signal from main frame;

Step S42:The previous brightness level of the inputted vision signal of storage;

Step S43:Judge whether that superposition is mended based on next brightness level of previous brightness level and next vision signal Signal is repaid to next vision signal, to determine to export brightness level;

In step S44:Each pixel of the image of every frame is driven to display image based on identified output brightness level Liquid crystal cells.

As described above, the determiner may also include look-up table, therefore, the driving method of the liquid crystal display can also wrap Include the following steps:

The brightness level for the liquid crystal cells that storage corresponds to previous brightness level and next brightness level and determined;

Brightness level according to corresponding previous brightness level and next brightness level judges whether to be superimposed thermal compensation signal.

In addition, in one embodiment, the driving method of the liquid crystal display can also comprise the steps of:

Thermal compensation signal is added to next vision signal by the generator of liquid crystal display, has the output bright to produce Spend the output vision signal of level.

In another embodiment, the driving method of the liquid crystal display can yet further comprise the steps:

The output vision signal with the output brightness level is exported to driving by the output logic device of liquid crystal display Device.

The embodiment of the present invention still further provides a kind of liquid crystal display, including:

Input logic device, for inputting the vision signal from main frame;

Memory, the previous brightness level of the vision signal inputted for storing the input logic device;

Determiner, based on the previously brightness level being stored in the memory and it is input under the input logic device Next brightness level of one vision signal come judge whether be superimposed thermal compensation signal to next vision signal on, with true Surely brightness level is exported;

Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image;

Generator, for the thermal compensation signal to be added to next vision signal, there is the output brightness to produce The output vision signal of level;And

Logic device is exported, for the output vision signal with the output brightness level to be exported to the driver;

Wherein, the determiner includes look-up table, and the look-up table is stored with the corresponding previously brightness level and described next Individual brightness level and the brightness level of the liquid crystal cells determined, and according to the luminance bit read by the look-up table Standard judges whether to be superimposed the thermal compensation signal.

In addition, the embodiment of the present invention is yet corresponding to provide a kind of driving method of liquid crystal display, suitable for including input Logic device, memory, determiner, driver, generator and the liquid crystal display for exporting logic device, it comprises the following steps:

Input the vision signal from main frame;

Store the previous brightness level of the vision signal inputted;

Superposition compensation letter is judged whether based on previously next brightness level of brightness level and next vision signal Number in next vision signal, to determine to export brightness level;

The thermal compensation signal is added to next vision signal, regarded with producing the output with the output brightness level Frequency signal;

The output vision signal with the output brightness level is exported to the driver;And

Each pixel of the image of every frame is driven to the liquid for showing described image based on the identified output brightness level Brilliant unit;

Wherein, the determiner includes look-up table, and the driving method of the liquid crystal display also comprises the following steps:

The luminance bit for the liquid crystal cells that storage corresponds to previously brightness level and next brightness level and determined It is accurate;And

Judge whether to be superimposed institute according to the corresponding previously brightness level of brightness level and next brightness level State thermal compensation signal.

Referring again to Fig. 1, in another embodiment of the present invention, liquid crystal display 100 of the invention includes input logic device 110th, memory 120, determiner 130 and driver 140.Wherein, input logic device 110 connects memory 120, memory 120 Determiner 130 is connected, determiner 130 connects driver 140.

Wherein, the above-mentioned input logic device 110 being previously mentioned is used to input the vision signal from main frame.Memory 120 is used In the previous brightness level for the vision signal that storage input logic device 110 is inputted.Determiner 130 according to vision signal and its under The change of one vision signal determines whether upset condition, and the corresponding upset condition superposition thermal compensation signal (Dcp1 in such as Fig. 2 Or Dcp2) extremely in next vision signal (D in such as Fig. 2), to determine to export brightness level.Driver 140 is to based on true Output brightness level determined by device 130 is determined to drive each pixel of the image of the vision signal of every frame to the liquid of display image Brilliant unit.Wherein, low mode is set after height before thermal compensation signal can adopt, and preceding high part can accelerate to draw high brightness, simultaneously as voltage Increase, it is easier to reach desired level;Lower curtate part can accelerate the attenuating of brightness afterwards, reduce and next vision signal is done Disturb.The waveform of thermal compensation signal can also have a different forms, such as curve-like, stepped.

As shown in foregoing table one, determiner 130 of the invention may include look-up table, and look-up table is stored with corresponding previous brightness Level and next brightness level and the liquid crystal cells brightness level determined, and sentence according to the brightness level read by look-up table Whether disconnected is upset condition.So that previous brightness level is 0, next brightness level is 90 as an example, it may be read into pair from look-up table The liquid crystal cells brightness level answered is 98, can know liquid crystal cells brightness level corresponding to next brightness level deficiency, and then Determiner 130 just judges it for upset condition, and must be superimposed thermal compensation signal to next vision signal.

Conversely, so that next brightness level is 100 as an example, its corresponding liquid crystal cells brightness level is all 100, i.e., next Individual brightness level meets liquid crystal cells brightness level, therefore determiner 130 judges its non-change state, therefore is not necessary to next video Signal averaging thermal compensation signal.

As shown in figure 3, liquid crystal display 100 may also include generator 150, it connects determiner 130, for compensation to be believed Number be added to next vision signal, to produce the output vision signal with the output brightness level.Then, liquid crystal display Device 100 may also include output logic device 160, and it connects generator 150 and driver 140, for that will have the output brightness The output vision signal of level is exported to driver 140.

Referring to Fig. 5, its flow chart for another embodiment of the driving method of the liquid crystal display of the present invention.Such as Fig. 5 It is shown, the driving method of liquid crystal display provided in an embodiment of the present invention, suitable for including input logic device, memory, determination The liquid crystal display of device and driver, it comprises the following steps:

Step S51:Input the vision signal from main frame;

Step S52:The previous brightness level of the inputted vision signal of storage;

Step S53:Change according to vision signal and its next vision signal determines whether upset condition;

Step S54:In corresponding upset condition superposition thermal compensation signal to next vision signal, to determine to export brightness level;

Step S55:Each pixel of the image of every frame is driven to the liquid of display image based on identified output brightness level Brilliant unit.

As described above, the determiner may also include look-up table, therefore, the driving method of the liquid crystal display also includes The following steps:

The brightness level for the liquid crystal cells that storage corresponds to previous brightness level and next brightness level and determined;

Brightness level according to corresponding previous brightness level and next brightness level determines whether upset condition.

In addition, in one embodiment, the driving method of the liquid crystal display can also comprise the steps of:

Thermal compensation signal is added to next vision signal by the generator of liquid crystal display, has the output bright to produce Spend the output vision signal of level.

In another embodiment, the driving method of the liquid crystal display also comprises the following steps:

The output vision signal with the output brightness level is exported to driving by the output logic device of liquid crystal display Device.

The embodiment of the present invention also provides a kind of liquid crystal display in addition, and it includes:

Input logic device, for inputting the vision signal from main frame;

Memory, the previous brightness level of the vision signal inputted for storing the input logic device;

Determiner, for determining whether upset condition according to the change of the vision signal and its next vision signal, and In corresponding upset condition superposition thermal compensation signal to next vision signal, to determine to export brightness level;

Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image;

Generator, for the thermal compensation signal to be added to next vision signal, there is the output brightness to produce The output vision signal of level;And

Logic device is exported, for the output vision signal with the output brightness level to be exported to the driver;

Wherein, the determiner includes look-up table, and the look-up table is stored with the corresponding previously brightness level and described next Individual brightness level and the brightness level of the liquid crystal cells determined, and according to the luminance bit read by the look-up table Standard determines whether upset condition.

In addition, further embodiment of this invention is also corresponding to provide a kind of driving method of liquid crystal display, suitable for including defeated Enter logic device, memory, determiner, driver, generator and the liquid crystal display for exporting logic device, it comprises the following steps:

Input the vision signal from main frame;

Store the previous brightness level of the vision signal inputted;

Change according to the vision signal and its next vision signal determines whether upset condition;

The thermal compensation signal is added to next vision signal, regarded with producing the output with the output brightness level Frequency signal;

The output vision signal with the output brightness level is exported to the driver;And

Each pixel of the image of every frame is driven to the liquid for showing described image based on the identified output brightness level Brilliant unit;

Wherein, the determiner includes look-up table, and the driving method of the liquid crystal display also comprises the following steps:

The luminance bit for the liquid crystal cells that storage corresponds to previously brightness level and next brightness level and determined It is accurate;And

Determine whether to change according to the corresponding previously brightness level of brightness level and next brightness level State.

Referring again to Fig. 1, in another embodiment of the present invention, liquid crystal display 100 of the invention includes input logic Device 110, memory 120, determiner 130 and driver 140.Wherein, input logic device 110 connects memory 120, memory 120 connection determiners 130, determiner 130 connect driver 140.

Wherein, the above-mentioned input logic device 110 being previously mentioned is used to input the vision signal from main frame.Memory 120 is used In previous the brightness level and several conditionals of the vision signal that storage input logic device 110 is inputted.

Determiner 130 is by the previous brightness level being stored in memory 120 and is input to the next of input logic device 110 In the conditional corresponding to next brightness level substitution of individual vision signal, to determine to export brightness level.Driver 140 To export brightness level based on determined by determiner 130 to drive each pixel of the image of the vision signal of every frame to aobvious The liquid crystal cells of diagram picture.

Wherein, B can be setiFor previous brightness level, Bi+1For next brightness level, and several conditions are as follows:

Bi+1=0, then offset=0

Bi+1=10 and Bi=0, then offset=18

Bi+1=10 and Bi=10 ~ 90, then offset=0

Bi+1=10 and Bi=100, then offset=- 8

Bi+1=20 and Bi=0, then offset=28

Bi+1=20 and Bi=10, then offset=10

Bi+1=20 and Bi=20 ~ 90, then offset=0

Bi+1=20 and Bi=100, then offset=- 16

Bi+1=30 and Bi=0, then offset=33

Bi+1=30 and Bi=10, then offset=15

Bi+1=30 and Bi=20, then offset=5

Bi+1=30 and Bi=30 ~ 80, then offset=0

Bi+1=30 and Bi=90, then offset=- 5

Bi+1=30 and Bi=100, then offset=- 23

Bi+1=40 and Bi=0, then offset=34

Bi+1=40 and Bi=10, then offset=16

Bi+1=40 and Bi=20, then offset=6

Bi+1=40 and Bi=30, then offset=1

Bi+1=40 and Bi=40 ~ 80, then offset=0

Bi+1=40 and Bi=90, then offset=- 10

Bi+1=40 and Bi=100, then offset=- 28

Bi+1=50 and Bi=0, then offset=33

Bi+1=50 and Bi=10, then offset=15

Bi+1=50 and Bi=20, then offset=5

Bi+1=50 and Bi=30 ~ 70, then offset=0

Bi+1=50 and Bi=80, then offset=- 5

Bi+1=50 and Bi=90, then offset=- 15

Bi+1=50 and Bi=100, then offset=- 33

Bi+1=60 and Bi=0, then offset=28

Bi+1=60 and Bi=10, then offset=10

Bi+1=60 and Bi=20 ~ 60, then offset=0

Bi+1=60 and Bi=70, then offset=- 1

Bi+1=60 and Bi=80, then offset=- 6

Bi+1=60 and Bi=90, then offset=- 16

Bi+1=60 and Bi=100, then offset=- 34

Bi+1=70 and Bi=0, then offset=23

Bi+1=70 and Bi=10, then offset=5

Bi+1=70 and Bi=20 ~ 70, then offset=0

Bi+1=70 and Bi=80, then offset=- 5

Bi+1=70 and Bi=90, then offset=- 15

Bi+1=70 and Bi=100, then offset=- 32

Bi+1=80 and Bi=0, then offset=16

Bi+1=80 and Bi=10 ~ 80, then offset=0

Bi+1=80 and Bi=90, then offset=- 10

Bi+1=80 and Bi=100, then offset=- 28

Bi+1=90 and Bi=0, then offset=8

Bi+1=90 and Bi=10 ~ 90, then offset=0

Bi+1=90 and Bi=100, then offset=- 18

Bi+1=100, then offset=0

As described above, after determiner 130 substitutes into previous brightness level and next brightness level to corresponding conditional, obtain inclined Shifting amount, and offset is added in next brightness level.

As shown in figure 3, liquid crystal display 100 may also include generator 150, it connects determiner 130, for by offset Next vision signal is added to, to produce the output vision signal with the output brightness level.Then, liquid crystal display 100 may also include output logic device 160, and it connects generator 150 and driver 140, for that will have the output luminance bit Accurate output vision signal is exported to driver 140.

Referring to Fig. 6, its flow chart for the another embodiment of the driving method of the liquid crystal display of the present invention.Such as Fig. 6 It is shown, the driving method of liquid crystal display of the invention, suitable for including input logic device, memory, determiner and driver Liquid crystal display, it comprises the following steps:

Step S61:Input the vision signal from main frame;

Step S62:Previous the brightness level and several conditionals of the inputted vision signal of storage;

Step S63:Next brightness level of previous brightness level and next vision signal is substituted into corresponding conditional, To determine to export brightness level;

Step S64:Each pixel of the image of every frame is driven to the liquid of display image based on identified output brightness level Brilliant unit.

As described above, in one embodiment, the driving method of the liquid crystal display also comprises the following steps:

By substituting into previous brightness level and next brightness level to the corresponding conditional to obtain offset;

Add in offset to next brightness level.

In addition, in one embodiment, the driving method of the liquid crystal display can also comprise the steps of:

Offset is added in next vision signal by the generator of liquid crystal display, there is the output brightness to produce The output vision signal of level.

In another embodiment, the driving method of the liquid crystal display can also comprise the steps of:

The output vision signal with the output brightness level is exported to driving by the output logic device of liquid crystal display Device.

In another embodiment, the embodiment of the present invention also provides a kind of liquid crystal display in addition, including:

Input logic device, input the vision signal from main frame;

Memory, store the previous brightness level and several conditions of the vision signal that the input logic device is inputted Formula;

Determiner, by the previously brightness level being stored in the memory and it is input to the next of the input logic device In the conditional corresponding to next brightness level substitution of individual vision signal, to determine to export brightness level;

Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image;

Generator, for the thermal compensation signal to be added to next vision signal, there is the output brightness to produce The output vision signal of level;And

Logic device is exported, for the output vision signal with the output brightness level to be exported to the driver;

Wherein, the determiner substitutes into the previously brightness level and next brightness level to the corresponding conditional Afterwards, offset is obtained, and the offset is added in next brightness level.

In addition, another of the invention embodiment is also corresponding to provide a kind of driving method of liquid crystal display, suitable for including Input logic device, memory, determiner, driver, generator and the liquid crystal display for exporting logic device, it includes following step Suddenly:

Input the vision signal from main frame;

Store previous the brightness level and several conditionals of the vision signal inputted;

Previously next brightness level of brightness level and next vision signal is substituted into the corresponding conditional, To determine to export brightness level;

The thermal compensation signal is added to next vision signal, regarded with producing the output with the output brightness level Frequency signal;

The output vision signal with the output brightness level is exported to the driver;And

Each pixel of the image of every frame is driven to the liquid for showing described image based on the identified output brightness level Brilliant unit;

Wherein, the driving method of the liquid crystal display also comprises the following steps:

By substituting into previously brightness level and next brightness level to the corresponding conditional to obtain skew Amount;And

The offset is added to next brightness level.

Referring to Fig. 7, its functional block diagram for the another embodiment of the liquid crystal display of the present invention.As shown in fig. 7, this In another embodiment of invention, liquid crystal display 100 of the invention includes:Input logic device 110, memory 120, optical sensor 170 and integrator 180.Wherein, input logic device 110 connects holder 120, and integrator 180 connects input logic device 110, deposited Reservoir 120 and optical sensor 170.

Wherein, the above-mentioned input logic device 110 being previously mentioned is to input the vision signal from main frame, and vision signal is tieed up Hold opening.Memory 120 is storing inactive state brightness level.Optical sensor 170 is sensing the bright of vision signal Spend and produce light sensation induction signal.Integrator 180 is then to integrate received light sensation induction signal, and correspondingly meet inactive state The integral result of brightness level and close vision signal, and vision signal is changed into closed mode.Wherein, integrator 180 can pass Shutdown signal is sent to input logic device 110 so that videl signal is changed into closed mode.

Optionally, the memory 120 is stored with the brightness level of vision signal.So as to which integrator 170 can be according to quiet Only the luminance bit of state luminance level and vision signal will definitely know meet corresponding inactive state brightness level integral result why.

Importantly, integrator 180 includes look-up table, relation table includes the brightness level of several vision signals and its right The inactive state brightness level answered, integrator 180 according to vision signal brightness level as in relation table obtain corresponding to it is static State luminance level.

As shown in fig. 7, liquid crystal display 100 may also include driver 140, it connects input logic device 110, for will be every Each pixel driver of vision signal described in frame to display image liquid crystal cells.

Referring to Fig. 8, its flow chart for the another embodiment of the driving method of the liquid crystal display of the present invention.Such as Fig. 8 It is shown, the driving method of liquid crystal display of the invention, suitable for including input logic device, memory, optical sensor and integration The liquid crystal display of device, it comprises the following steps:

Step S81:The vision signal from main frame is inputted, and vision signal maintains opening;

Step S82:Store inactive state brightness level;

Step S83:Sense the brightness of vision signal and produce light sensation induction signal;

Step S84:Integral light induced signal, the corresponding integral result for meeting inactive state brightness level close vision signal.

Wherein, the memory is storing the brightness level of vision signal.

From the above, the integrator includes look-up table, and the driving method of the liquid crystal display also comprises the steps of:

Store several vision signals brightness level and its corresponding inactive state brightness level in relation table;

The brightness level of foundation vision signal inactive state brightness level as corresponding to being obtained in relation table.

In addition, in another embodiment, the driving method of the liquid crystal display also comprises the steps of:

By the driver of liquid crystal display by the liquid crystal cells of each pixel driver of every frame video signal to display image.

Another embodiment of the present invention also provides a kind of liquid crystal display, and it includes:

Input logic device, the vision signal from main frame is inputted, and vision signal maintains opening;

Memory, stores inactive state brightness level, and the memory storage has the brightness level of the vision signal;

Optical sensor, sense the brightness of the vision signal and produce light sensation induction signal;

Integrator, the light sensation induction signal is integrated, correspond to and meet described in the integral result closing of the inactive state brightness level Vision signal, the integrator include relation table, the relation table include several vision signals brightness level and its The corresponding inactive state brightness level, the integrator according to the vision signal the brightness level by the relation The inactive state brightness level corresponding to being obtained in table;And

Driver, for by the liquid crystal cells of each pixel driver of vision signal described in every frame to display image.

In addition, further embodiment of this invention is also corresponding to provide a kind of driving method of liquid crystal display, suitable for including defeated Enter the liquid crystal display of logic device, memory, optical sensor, integrator and driver, it comprises the following steps:

The vision signal from main frame is inputted, and the vision signal maintains opening;

Store the brightness level of inactive state brightness level and the vision signal;

Sense the brightness of the vision signal and produce light sensation induction signal;

Store several vision signals brightness level and its corresponding inactive state brightness level in the relation In table;

According to the vision signal the brightness level as in the relation table obtain corresponding to the inactive state luminance bit It is accurate;

The light sensation induction signal is integrated, the corresponding integral result for meeting the inactive state brightness level closes the video letter Number;And

By the driver of the liquid crystal display by the liquid of each pixel driver of vision signal described in every frame to display image Brilliant unit.

Video is believed by being superimposed the modes such as thermal compensation signal according to above-mentioned, of the invention Liquid Crystal Display And Method For Driving Number compensate, the problem of to improve operating lag.

It should be noted that in the described embodiment, the description to each embodiment all emphasizes particularly on different fields, in some embodiment The part being not described in, it may refer to the associated description of other embodiment.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced Change, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection domain be defined.

Claims (9)

  1. A kind of 1. liquid crystal display, it is characterised in that including:
    Input logic device, for inputting the vision signal from main frame;
    Memory, the previous brightness level of the vision signal inputted for storing the input logic device and several Part formula;
    Determiner, for described previously brightness level and being input to the input logic device by be stored in the memory In the conditional corresponding to next brightness level substitution of next vision signal, to determine to export brightness level;And
    Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image.
  2. 2. liquid crystal display as claimed in claim 1, it is characterised in that the determiner substitute into the previously brightness level and After next brightness level to the corresponding conditional, offset is obtained, and the offset is added to described next In individual brightness level.
  3. 3. liquid crystal display as claimed in claim 1, it is characterised in that the liquid crystal display also includes generator, is used for The offset is added in next vision signal, believed with producing the output video with the output brightness level Number.
  4. 4. liquid crystal display as claimed in claim 3, it is characterised in that the liquid crystal display also includes output logic device, For the output vision signal with the output brightness level to be exported to the driver.
  5. 5. a kind of driving method of liquid crystal display, the liquid suitable for including input logic device, memory, determiner and driver Crystal display, it is characterised in that comprise the following steps:
    Input the vision signal from main frame;
    Store previous the brightness level and several conditionals of the vision signal inputted;
    Previously next brightness level of brightness level and next vision signal is substituted into the corresponding conditional, To determine to export brightness level;And
    Each pixel of the image of every frame is driven to the liquid for showing described image based on the identified output brightness level Brilliant unit.
  6. 6. the driving method of liquid crystal display as claimed in claim 5, it is characterised in that the driving method also includes following Step:
    By substituting into previously brightness level and next brightness level to the corresponding conditional to obtain skew Amount;And
    The offset is added to next brightness level.
  7. 7. the driving method of liquid crystal display as claimed in claim 5, it is characterised in that the driving method is also comprising following Step:
    The offset is added in next vision signal by the generator of the liquid crystal display, had to produce The output vision signal of the output brightness level.
  8. 8. the driving method of liquid crystal display as claimed in claim 7, it is characterised in that the driving method is also comprising following Step:
    It is by the output logic device of the liquid crystal display that the output vision signal with the output brightness level is defeated Go out to the driver.
  9. A kind of 9. liquid crystal display, it is characterised in that including:
    Input logic device, for inputting the vision signal from main frame;
    Memory, the previous brightness level of the vision signal inputted for storing the input logic device and several Part formula;
    Determiner, for described previously brightness level and being input to the input logic device by be stored in the memory In the conditional corresponding to next brightness level substitution of next vision signal, to determine to export brightness level;
    Driver, it is described based on determined by the determiner to export brightness level to drive each pixel of the image of every frame extremely Show the liquid crystal cells of described image;
    Generator, for the thermal compensation signal to be added to next vision signal, there is the output brightness to produce The output vision signal of level;And
    Logic device is exported, for the output vision signal with the output brightness level to be exported to the driver;
    Wherein, the determiner substitutes into the previously brightness level and next brightness level to the corresponding conditional Afterwards, offset is obtained, and the offset is added in next brightness level.
CN201710847683.8A 2017-09-19 2017-09-19 Liquid Crystal Display And Method For Driving CN107516496A (en)

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Application publication date: 20171226