CN103345908B - A kind of liquid crystal on silicon field sequential color display methods and system - Google Patents
A kind of liquid crystal on silicon field sequential color display methods and system Download PDFInfo
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Abstract
The present invention is suitable for the communications field, provides a kind of liquid crystal on silicon field sequential color display methods, including：The default field data of input is passed through into process of frequency multiplication to generate the higher frequency multiplication data group of frame per second；The data in the frequency multiplication data group are exported within a field time cycle of the field sync signal of video input data, wherein, the frequency multiplication data group includes the parallel RGB data of six subfields, and exports the order of data in the frequency multiplication data group to export two red color sub-field data, two green color sub-field data, two blue sub-fields data respectively successively.The present invention also provides a kind of liquid crystal on silicon field sequential color display systems.A kind of liquid crystal on silicon field sequential color display methods and system provided by the present invention, can improve the brightness that liquid crystal on silicon field sequential color is shown, so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promote display effect.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of liquid crystal on silicon field sequential color display methods and system.
Background technology
The principle of color sequential method is：First the RGB in every field picture（RGB）Information is separated, Ran Hou
RGB image is write display screen by point 3 subfields respectively in time of each, the scanning process of each subfield terminate with
And RGB is lighted successively after liquid crystal reaction（RGB）3 color light sources, so as to one when ask in 3 width of red green and blue successively
Image is synthesized colored using the characteristic of human eye.
And in the prior art, liquid crystal on silicon（Liquid Crystal On Silicon, LCOS）During display chip colour
Sequence method output subfield arrangements be：RGBRGB, therefore each due to needing to want each subfield scanning process to terminate and liquid crystal
3 color LED light source of RGB is just lighted respectively after reaction time, lamp is closed before writing a sub- field scan and starting, actual LED
Lamp lighting time subtracts liquid crystal sweep time during being the blanking of each subfield, and due to the limitation of field frequency requirement, per height
The blanking interval of field cannot be too long, therefore the LED light lighting time duty cycle of the type of drive is not high, and the utilization rate of LED light is inadequate,
So as to affect display effect, cause display brightness inadequate.
Fig. 1 show the time diagram of field sequential color display methods of the prior art, wherein, the Vsync in figure
The field sync signal of video input data is expressed as, high level is field valid interval, and low level is field blanking section；Vsync_
RGB is expressed as being output to the field sync signal of each subfield on LCOS chip；Pannel Data are expressed as pixel on LCOS and show
Show the data of matrix；Mark that R_LED, G_LED, B_LED are respectively red, green, blue LED lamp are turned on light, high level is to turn on light,
Low level is to turn off the light.
By Fig. 1 it can be seen that, inside the time of a field Vsync of the vision signal of input, three are outputed respectively
The data of subfield Vsync_RGB are on LCOS chip, and subfield is arranged as RGB arrangements, and red LED lamp R_LED lighting times are R
Subfield scanning process terminate and liquid crystal reaction after, turn off the light the time for G subfields scanning start before；Green LED lamp G_LED is opened
The lamp time for G subfield scanning processes terminate and liquid crystal reaction after, turn off the light the time for B subfields scanning start before；Blue led
Lamp B_LED lighting times for B subfield scanning processes terminate and liquid crystal reaction after, the time of turning off the light is that the R subfields of next are swept
Before retouching beginning.So, LED light lighting time duty cycle is not high, and then causes the utilization rate of LED light not high, so as to shadow
Display effect has been rung, has caused display brightness inadequate.
Therefore, there is an urgent need for designing a kind of new liquid crystal on silicon field sequential color display methods, and then display effect is improved, increased
Display brightness.
The content of the invention
In view of this, the embodiment of the present invention is designed to provide a kind of liquid crystal on silicon field sequential color display methods and is
System, it is intended to solves the problem of field sequential color display methods in the prior art display brightness it is inadequate so that influence display effect.
The embodiment of the present invention is achieved in that a kind of liquid crystal on silicon field sequential color display methods, the described method includes：
The default field data of input is passed through into process of frequency multiplication to generate the higher frequency multiplication data group of frame per second；
The number in the frequency multiplication data group is exported within a field time cycle of the field sync signal of video input data
According to, wherein, the frequency multiplication data group includes the parallel RGB data of six subfields, and exports data in the frequency multiplication data group
Order for successively respectively export two red color sub-field data, two green color sub-field data, two blue sub-fields data.
Preferably, the step of two red color sub-field data of the output specifically include：
In first subfield only red color sub-field data are write to the chip pixel matrix of liquid crystal on silicon；
After first sub- field scan process, red LED lamp is opened after the default liquid crystal reaction time；
Continue to write red color sub-field data to the chip pixel matrix of liquid crystal on silicon in second subfield, and keep red
LED light continues on.
Preferably, the step of two green color sub-field data of the output specifically include：
Green color sub-field data are write to the chip pixel matrix of liquid crystal on silicon in the 3rd subfield, while in the 3rd subfield
Red LED lamp is closed before write-in data；
After the 3rd sub- field scan process, green LED lamp is opened after the default liquid crystal reaction time；
Continue to write green color sub-field data to the chip pixel matrix of liquid crystal on silicon in the 4th subfield, and keep green
LED light continues on.
Preferably, the step of two blue sub-fields data of the output specifically include：
Blue sub-fields data are write to the chip pixel matrix of liquid crystal on silicon in the 5th subfield, while in the 5th subfield
Green LED lamp is closed before write-in data；
After the 5th sub- field scan process, blue LED lamp is opened after the default liquid crystal reaction time；
Continue to write blue sub-fields data to the chip pixel matrix of liquid crystal on silicon in the 6th subfield, and keep blueness
LED light continues on, and then closes blue LED lamp before the data in next group of frequency multiplication data group are write.
On the other hand, the present invention also provides a kind of liquid crystal on silicon field sequential color display system, the system comprises：
Process of frequency multiplication module, for the default field data inputted to be generated the higher frequency of frame per second by process of frequency multiplication
According to group；
Data outputting module, for described in the output within a field time cycle of the field sync signal of video input data
Data in frequency multiplication data group, wherein, the frequency multiplication data group includes the parallel RGB data of six subfields, and described in output
The order of data is to export two red color sub-field data, two green color sub-field data, two indigo plants respectively successively in frequency multiplication data group
Dice field data.
Preferably, the data outputting module includes：
First output sub-module, for only writing red color sub-field to the chip pixel matrix of liquid crystal on silicon in first subfield
Data；
First turns on light module, for after first sub- field scan process, after the default liquid crystal reaction time
Open red LED lamp；
Second output sub-module, for continuing the red son of chip pixel matrix write-in to liquid crystal on silicon in second subfield
Field data, and red LED lamp is kept to continue on.
Preferably, the data outputting module further includes：
3rd output sub-module, for writing green color sub-field number to the chip pixel matrix of liquid crystal on silicon in the 3rd subfield
According to, while close red LED lamp before the 3rd subfield writes data；
Second turns on light module, for after the 3rd sub- field scan process, after the default liquid crystal reaction time
Open green LED lamp；
4th output sub-module, for continuing chip pixel matrix write-in green to liquid crystal on silicon in the 4th subfield
Field data, and green LED lamp is kept to continue on.
Preferably, the data outputting module further includes：
5th output sub-module, for writing blue sub-fields number to the chip pixel matrix of liquid crystal on silicon in the 5th subfield
According to, while close green LED lamp before the 5th subfield writes data；
3rd turns on light module, for after the 5th sub- field scan process, after the default liquid crystal reaction time
Open blue LED lamp；
6th output sub-module, for continuing chip pixel matrix write-in blueness to liquid crystal on silicon in the 6th subfield
Field data, and blue LED lamp is kept to continue on, blueness is then closed before the data in next group of frequency multiplication data group are write
LED light.
In embodiments of the present invention, technical solution provided by the invention can improve liquid crystal on silicon field sequential color and show
Brightness so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promote display effect.
Description of the drawings
Fig. 1 is the time diagram of field sequential color display methods of the prior art；
Fig. 2 is liquid crystal on silicon field sequential color display methods flow chart in an embodiment of the present invention；
Fig. 3 is the time diagram of field sequential color display methods in an embodiment of the present invention；
Fig. 4 is that the sequential signal comparison of an embodiment of the present invention and field sequential color display methods of the prior art is aobvious
Diagram；
Fig. 5 is the structure diagram of liquid crystal on silicon field sequential color display system 10 in an embodiment of the present invention；
Fig. 6 is the structure diagram of data outputting module 102 in an embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The specific embodiment of the invention provides a kind of liquid crystal on silicon field sequential color display methods, main to include following step
Suddenly：
S11, the default field data of input is passed through into process of frequency multiplication to generate the higher frequency multiplication data group of frame per second；
S12, exported within a field time cycle of the field sync signal of video input data in the frequency multiplication data group
Data, wherein, the frequency multiplication data group includes the parallel RGB data of six subfields, and exports in the frequency multiplication data group
The order of data is to export two red color sub-field data, two green color sub-field data, two blue sub-fields data respectively successively.
It is color can to improve liquid crystal on silicon field sequential for a kind of liquid crystal on silicon field sequential color display methods provided by the present invention
The brightness that color is shown so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promotes display effect.
A kind of liquid crystal on silicon field sequential color display methods provided by the present invention will be described in detail below.
Referring to Fig. 2, it is liquid crystal on silicon field sequential color display methods flow chart in an embodiment of the present invention.
In step s 11, the default field data of input is passed through into process of frequency multiplication to generate the higher frequency multiplication data group of frame per second.
In step s 12, the frequency multiplication is exported within a field time cycle of the field sync signal of video input data
Data in data group, wherein, the frequency multiplication data group includes the parallel RGB of six subfields（RGB）Data, and export institute
State the orders of data in frequency multiplication data group for export respectively successively two red color sub-field data, two green color sub-field data, two
Blue sub-fields data.
In the present embodiment, the sub-step of two red color sub-field data of output in step S12 specifically includes：
In first subfield only to liquid crystal on silicon（Liquid Crystal On Silicon, LCOS）Chip pixel square
Battle array write-in red color sub-field data；
After first sub- field scan process, red LED lamp is opened after the default liquid crystal reaction time；
Continue to write red color sub-field data to the chip pixel matrix of liquid crystal on silicon in second subfield, and keep red
LED light continues on.
In the present embodiment, the sub-step of two green color sub-field data of output in step S12 specifically includes：
Green color sub-field data are write to the chip pixel matrix of liquid crystal on silicon in the 3rd subfield, while in the 3rd subfield
Red LED lamp is closed before write-in data；
After the 3rd sub- field scan process, green LED lamp is opened after the default liquid crystal reaction time；
Continue to write green color sub-field data to the chip pixel matrix of liquid crystal on silicon in the 4th subfield, and keep green
LED light continues on.
In the present embodiment, the sub-step of two blue sub-fields data of output in step S12 specifically includes：
Blue sub-fields data are write to the chip pixel matrix of liquid crystal on silicon in the 5th subfield, while in the 5th subfield
Green LED lamp is closed before write-in data；
After the 5th sub- field scan process, blue LED lamp is opened after the default liquid crystal reaction time；
Continue to write blue sub-fields data to the chip pixel matrix of liquid crystal on silicon in the 6th subfield, and keep blueness
LED light continues on, and then closes blue LED lamp before the data in next group of frequency multiplication data group are write.
In the present embodiment, step S11-S12 is repeated, the data of every are done with same processing, and then can be realized whole
A display methods.In the present embodiment, in the case where ensureing that picture does not flicker, the time warp of the vertical blanking period of each subfield
It is often longer, it can equally allow LED light lighting time longer, brightness higher, display effect is more preferable.
Referring to Fig. 3, the time diagram for field sequential color display methods in an embodiment of the present invention.
As shown in figure 3, wherein, Vsync is expressed as the field sync signal of video input data, high level is field effective district
Between, low level is field blanking section；Vsync_RGB is expressed as being output to the field sync signal of each subfield on LCOS chip；
Pannel Data are expressed as the data of pixel display matrix on LCOS；R_LED, G_LED, B_LED are expressed as red, green
Color, blue LED lamp are turned on light mark, and high level is turns on light, and low level is turns off the light.
By Fig. 3 it can be seen that, inside the time of a field Vsync of the vision signal of input, six are outputed respectively
The data of subfield Vsync_RGB are on LCOS chip, and subfield is arranged as RRGGBB arrangements, and concrete methods of realizing is：Firstth,
Two subfields write R data to picture element matrix, and the 3rd, the 4th subfield writes G data, the 5th, the 6th son to picture element matrix
Field writes B data to picture element matrix；R sub-fields datas are written to pixel matrix circuit in the field valid interval of first subfield
In, continue to write R sub-fields datas inside next second subfield, then after the first sub-fields data end of scan so
Afterwards after one liquid crystal response time, red LED lamp is opened.
Wherein, red LED lamp R_LED lighting times terminate for first R subfield scanning process and then by one section of liquid crystal
After reaction time, before the time of turning off the light starts for first G subfields scanning；Green LED lamp G_LED lighting times are first
G subfield scanning processes terminated and then after one section of liquid crystal reaction time, and the time of turning off the light scans beginning for first B subfield
Before；Blue LED lamp B_LED lighting times terminate for first B subfield scanning process then by one section of liquid crystal reaction time it
Afterwards, before first R subfield scanning that the time is next of turning off the light starts.Since the data of first, second subfield write-in are equal
It is R sub-fields datas, and the data differences of two subfield write-ins are little, therefore red LED lamp is writing the second subfield R sub-fields datas
When can not have to turn off the light, red LED lamp is always on, until ability is by red before the 3rd sub-fields data write
LED light is closed.Green LED lamp, the mode of operation of blue LED lamp are similar with red LED.
So, in the case where ensureing that picture does not flicker, the time of the vertical blanking period of each subfield is often longer,
It can equally allow LED light lighting time longer, brightness higher, display effect is more preferable.
Referring to Fig. 4, the sequential for an embodiment of the present invention and field sequential color display methods of the prior art is shown
Meaning comparison display figure.
As shown in figure 4, wherein, Vsync1 is expressed as the field sync signal of the display methods neutron field of the prior art, high electricity
It puts down as field valid interval, low level is field blanking section；Vsync2 is expressed as the display methods neutron of an embodiment of the present invention
The field sync signal of field, high level are field valid interval, and low level is field blanking section；R_LED1, G_LED1, B_LED1 distinguish
Red, green, blue LED in the display methods of the prior art is expressed as to turn on light beacon signal；R_LED2, G_LED2, B_LED2 distinguish table
Red, green, blue LED in the display methods of an embodiment of the present invention is shown as to turn on light beacon signal.
Compared with prior art, under same clock frequency, there is following relation：5*V_Cnt2*H_Cnt2=3*V_
Cnt1*H_Cnt1, wherein, V_Cnt2 be expressed as picture in an embodiment of the present invention not under flashing state each subfield maximum
Line number, H_Cnt2 are expressed as columns；V_Cnt1 be expressed as picture in the prior art not under flashing state each subfield maximum row
Number, H_Cnt1 is columns；Moreover, H_Cnt1=H_Cnt2 under normal circumstances, therefore, 5*V_Cnt2=3*V_Cnt1.
As shown in figure 4, under LED lighting times or unanimous circumstances, LED light is opened if in V _ cnt rows, then
LED light duty cycle of the prior art is M1, wherein M1=(V_Cnt1-Vcnt)/(V_Cnt1*3)；An and embodiment party of the invention
LED light duty cycle in formula is M2, wherein M2=(2*V_Cnt2-Vcnt)/(V_Cnt2*2*3).
If the duty cycle of the two is compared,
M2/M1=(V_Cnt1/(V_Cnt2*2))*((2*V_Cnt2-Vcnt)/(V_Cnt1-Vcnt))
=(5/6)*((2*V_Cnt2-Vcnt)/(V_Cnt1-Vcnt))
=(5/6)*(((6/5)*V_Cnt1-Vcnt)/(V_Cnt1-Vcnt))
=(5/6)*(((1/5)*V_Cnt1+V_Cnt1-Vcnt)/(V_Cnt1-Vcnt))
=(5/6)*(1+(1/5)*V_Cnt1/(V_Cnt1-Vcnt))
In the case where V_Cnt1 is constant, Vcnt is bigger, and M2/M1 is bigger, and general Vcnt=0.7*V_Cnt1, therefore,
M2/M1=15/12=1.39, that is to say, that the LED light duty cycle in an embodiment of the present invention is at least of the prior art
1.39 times of LED light duty cycle, in other words, the utilization rate of the LED light in an embodiment of the present invention improves, and brightness is also
To improve, and then improve the display effect of entire display picture.
It is color can to improve liquid crystal on silicon field sequential for a kind of liquid crystal on silicon field sequential color display methods provided by the present invention
The brightness that color is shown so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promotes display effect.
The specific embodiment of the invention also provides a kind of liquid crystal on silicon field sequential color display system 10, mainly includes：
Process of frequency multiplication module 101, for the default field data inputted to be generated higher times of frame per second by process of frequency multiplication
Frequency data group；
Data outputting module 102, for being exported within the field sync signal of video input data a field time cycle
Data in the frequency multiplication data group, wherein, the frequency multiplication data group includes the parallel RGB data of six subfields, and exports
The order of data is to export two red color sub-field data, two green color sub-field data, two respectively successively in the frequency multiplication data group
A blue sub-fields data.
Liquid crystal on silicon field sequential color display system 10 provided by the present invention, can improve liquid crystal on silicon field sequential color
The brightness of display so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promotes display effect.
A kind of liquid crystal on silicon field sequential color display system 10 provided by the present invention will be described in detail below.
Referring to Fig. 5, it show the structure of liquid crystal on silicon field sequential color display system 10 in an embodiment of the present invention
Schematic diagram.In the present embodiment, liquid crystal on silicon field sequential color display system 10 includes process of frequency multiplication module 101 and data
Output module 102.
Process of frequency multiplication module 101, for the default field data inputted to be generated higher times of frame per second by process of frequency multiplication
Frequency data group.
Data outputting module 102, including the first output sub-module 1021, first turn on light module 1022, second export submodule
Block 1023, the 3rd output sub-module 1024, second are turned on light module 1025, the 4th output sub-module 1026, the 5th output sub-module
1027th, the 3rd turn on light 1028 and the 6th output sub-module 1029 of module, as shown in Figure 6.
Referring to Fig. 6, it show the structure diagram of data outputting module 102 in an embodiment of the present invention.
First output sub-module 1021, it is red for only being write in first subfield to the chip pixel matrix of liquid crystal on silicon
Sub-fields data；
First turns on light module 1022, for after first sub- field scan process, by presetting the liquid crystal reaction time
Red LED lamp is opened afterwards；
Second output sub-module 1023, it is red for continuing to write to the chip pixel matrix of liquid crystal on silicon in second subfield
Dice field data, and red LED lamp is kept to continue on.
3rd output sub-module 1024, for chip pixel matrix write-in green in the 3rd subfield to liquid crystal on silicon
Field data, while close red LED lamp before the 3rd subfield writes data；
Second turns on light module 1025, for after the 3rd sub- field scan process, by presetting the liquid crystal reaction time
Green LED lamp is opened afterwards；
4th output sub-module 1026 is green for continuing to write to the chip pixel matrix of liquid crystal on silicon in the 4th subfield
Dice field data, and green LED lamp is kept to continue on.
5th output sub-module 1027, for chip pixel matrix write-in blueness in the 5th subfield to liquid crystal on silicon
Field data, while close green LED lamp before the 5th subfield writes data；
3rd turns on light module 1028, for after the 5th sub- field scan process, by presetting the liquid crystal reaction time
Blue LED lamp is opened afterwards；
6th output sub-module 1029, it is blue for continuing to write to the chip pixel matrix of liquid crystal on silicon in the 6th subfield
Dice field data, and blue LED lamp is kept to continue on, then closed before the data in next group of frequency multiplication data group are write
Blue LED lamp.
In the present embodiment, in the case where ensureing that picture does not flicker, the time of the vertical blanking period of each subfield is frequent
It is longer, it can equally allow LED light lighting time longer, brightness higher, display effect is more preferable.
A kind of liquid crystal on silicon field sequential color display system 10 provided by the present invention, can improve liquid crystal on silicon field sequential
The brightness of colour display so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promotes display effect.
In embodiments of the present invention, technical solution provided by the invention can improve liquid crystal on silicon field sequential color and show
Brightness so that the saturation degree of liquid crystal on silicon field sequential color display effect is more preferable, and then promote display effect.
It is worth noting that, in above-described embodiment, included unit is simply divided according to function logic,
But above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, the specific name of each functional unit
Only to facilitate it mutually distinguishes, the protection domain being not intended to limit the invention.
In addition, one of ordinary skill in the art will appreciate that realize all or part of step in the various embodiments described above method
It is that relevant hardware can be instructed to complete by program, corresponding program can be stored in a computer-readable storage and be situated between
In matter, the storage medium, such as ROM/RAM, disk or CD.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of liquid crystal on silicon field sequential color display methods, which is characterized in that the described method includes：
The default field data of input is passed through into process of frequency multiplication to generate the higher frequency multiplication data group of frame per second；
The data in the frequency multiplication data group are exported within a field time cycle of the field sync signal of video input data,
In, the frequency multiplication data group includes the parallel RGB data of six subfields, and exports the suitable of data in the frequency multiplication data group
Sequence is to export two red color sub-field data, two green color sub-field data, two blue sub-fields data respectively successively；
Inside the time of a field Vsync of the vision signal of input, the data of six subfield Vsync_RGB are outputed respectively
Onto LCOS chip, subfield is arranged as RRGGBB arrangements, wherein, Vsync is expressed as the field sync signal of video input data,
Vsync_RGB is expressed as being output to the field sync signal of each subfield on LCOS chip；
Wherein, inside the time of a field Vsync of the vision signal in input, six subfield Vsync_ are outputed respectively
For the data of RGB on LCOS chip, subfield is arranged as RRGGBB arrangements, is specially：
First, second subfield writes R data to picture element matrix, and the 3rd, the 4th subfield writes G data to picture element matrix, the
5th, the 6th subfield writes B data to picture element matrix；R sub-fields datas are written to picture in the field valid interval of first subfield
In prime matrix circuit, continue to write R sub-fields datas inside second subfield, after the first sub-fields data end of scan then
After one liquid crystal response time, red LED lamp is opened；
Wherein, red LED lamp lighting time terminate for first R subfield scanning process then by one section of liquid crystal reaction time it
Afterwards, continue to keep it turned on during second R subfield, before the time of turning off the light starts for first G subfields scanning；Green LED lamp
Lighting time terminated for first G subfield scanning process and then after one section of liquid crystal reaction time, in second G subfield phase
Between continue to keep it turned on, before the time of turning off the light starts for the scanning of first B subfield；Blue LED lamp lighting time is first B
Field scan process terminates and then after one section of liquid crystal reaction time, continues to keep it turned on during second B subfield, turn off the light
Before first R subfield scanning that time is next starts.
2. liquid crystal on silicon field sequential color display methods as described in claim 1, which is characterized in that two red of the output
The step of sub-fields data, specifically includes：
In first subfield only red color sub-field data are write to the chip pixel matrix of liquid crystal on silicon；
After first sub- field scan process, red LED lamp is opened after the default liquid crystal reaction time；
Continue to write red color sub-field data to the chip pixel matrix of liquid crystal on silicon in second subfield, and keep red LED lamp
It continues on.
3. liquid crystal on silicon field sequential color display methods as claimed in claim 2, which is characterized in that two greens of the output
The step of sub-fields data, specifically includes：
Green color sub-field data are write to the chip pixel matrix of liquid crystal on silicon in the 3rd subfield, while are write in the 3rd subfield
Red LED lamp is closed before data；
After the 3rd sub- field scan process, green LED lamp is opened after the default liquid crystal reaction time；
Continue to write green color sub-field data to the chip pixel matrix of liquid crystal on silicon in the 4th subfield, and keep green LED lamp
It continues on.
4. liquid crystal on silicon field sequential color display methods as claimed in claim 3, which is characterized in that two bluenesss of the output
The step of sub-fields data, specifically includes：
Blue sub-fields data are write to the chip pixel matrix of liquid crystal on silicon in the 5th subfield, while are write in the 5th subfield
Green LED lamp is closed before data；
After the 5th sub- field scan process, blue LED lamp is opened after the default liquid crystal reaction time；
Continue to write blue sub-fields data to the chip pixel matrix of liquid crystal on silicon in the 6th subfield, and keep blue LED lamp
It continues on, then closes blue LED lamp before the data in next group of frequency multiplication data group are write.
5. a kind of liquid crystal on silicon field sequential color display system, which is characterized in that the system comprises：
Process of frequency multiplication module, for the default field data inputted to be generated the higher frequency multiplication data of frame per second by process of frequency multiplication
Group；
Data outputting module, for exporting the frequency multiplication within the field sync signal of video input data a field time cycle
Data in data group, wherein, the frequency multiplication data group includes the parallel RGB data of six subfields, and exports the frequency multiplication
The order of data is sub to export two red color sub-field data, two green color sub-field data, two bluenesss respectively successively in data group
Field data；
Inside the time of a field Vsync of the vision signal of input, the data of six subfield Vsync_RGB are outputed respectively
Onto LCOS chip, subfield is arranged as RRGGBB arrangements, wherein, Vsync is expressed as the field sync signal of video input data,
Vsync_RGB is expressed as being output to the field sync signal of each subfield on LCOS chip；
Wherein, inside the time of a field Vsync of the vision signal in input, six subfield Vsync_ are outputed respectively
For the data of RGB on LCOS chip, subfield is arranged as RRGGBB arrangements, is specially：
First, second subfield writes R data to picture element matrix, and the 3rd, the 4th subfield writes G data to picture element matrix, the
5th, the 6th subfield writes B data to picture element matrix；R sub-fields datas are written to picture in the field valid interval of first subfield
In prime matrix circuit, continue to write R sub-fields datas inside second subfield, after the first sub-fields data end of scan then
After one liquid crystal response time, red LED lamp is opened；
Wherein, red LED lamp lighting time terminate for first R subfield scanning process then by one section of liquid crystal reaction time it
Afterwards, continue to keep it turned on during second R subfield, before the time of turning off the light starts for first G subfields scanning；Green LED lamp
Lighting time terminated for first G subfield scanning process and then after one section of liquid crystal reaction time, in second G subfield phase
Between continue to keep it turned on, before the time of turning off the light starts for the scanning of first B subfield；Blue LED lamp lighting time is first B
Field scan process terminates and then after one section of liquid crystal reaction time, continues to keep it turned on during second B subfield, turn off the light
Before first R subfield scanning that time is next starts.
6. liquid crystal on silicon field sequential color display system as claimed in claim 5, which is characterized in that the data outputting module
Including：
First output sub-module, for only writing red color sub-field number to the chip pixel matrix of liquid crystal on silicon in first subfield
According to；
First turns on light module, for after first sub- field scan process, being opened after the default liquid crystal reaction time
Red LED lamp；
Second output sub-module, for continuing to write red color sub-field number to the chip pixel matrix of liquid crystal on silicon in second subfield
According to, and red LED lamp is kept to continue on.
7. liquid crystal on silicon field sequential color display system as claimed in claim 6, which is characterized in that the data outputting module
It further includes：
3rd output sub-module, for writing green color sub-field data to the chip pixel matrix of liquid crystal on silicon in the 3rd subfield,
Simultaneously red LED lamp is closed before the 3rd subfield writes data；
Second turns on light module, for after the 3rd sub- field scan process, being opened after the default liquid crystal reaction time
Green LED lamp；
4th output sub-module, for continuing to write green color sub-field number to the chip pixel matrix of liquid crystal on silicon in the 4th subfield
According to, and green LED lamp is kept to continue on.
8. liquid crystal on silicon field sequential color display system as claimed in claim 7, which is characterized in that the data outputting module
It further includes：
5th output sub-module, for writing blue sub-fields data to the chip pixel matrix of liquid crystal on silicon in the 5th subfield,
Simultaneously green LED lamp is closed before the 5th subfield writes data；
3rd turns on light module, for after the 5th sub- field scan process, being opened after the default liquid crystal reaction time
Blue LED lamp；
6th output sub-module, for continuing to write blue sub-fields number to the chip pixel matrix of liquid crystal on silicon in the 6th subfield
According to, and blue LED lamp is kept to continue on, then blue led is closed before the data in next group of frequency multiplication data group are write
Lamp.
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