CN103345908B - Method and system for time sequence color display of silicon-based liquid crystal field - Google Patents

Abstract

The invention is suitable for the communication field, and provides a silicon-based liquid crystal field time sequence color display method, which comprises the following steps: carrying out frequency multiplication on input preset field data to generate a frequency multiplication data set with a higher frame rate; and outputting the data in the frequency multiplication data group in one field time period of a field synchronizing signal of video input data, wherein the frequency multiplication data group comprises parallel red, green and blue data of six subfields, and the sequence of outputting the data in the frequency multiplication data group is to sequentially output two red subfield data, two green subfield data and two blue subfield data respectively. The invention also provides a silicon-based liquid crystal field time sequence color display system. The method and the system for the time sequence color display of the liquid crystal on silicon field can improve the brightness of the time sequence color display of the liquid crystal on silicon field, so that the saturation of the time sequence color display effect of the liquid crystal on silicon field is better, and the display effect is further improved.

Description

A liquid crystal on silicon field sequential color display method and system

technical field

The invention relates to the communication field, in particular to a silicon-based liquid crystal field sequential color display method and system.

Background technique

The principle of the color timing method is: firstly separate the red, green and blue (RGB) information in each field image, and then write the red, green and blue images into the display screen in 3 subfields within each field time. After the scanning process of the field is completed and the liquid crystal reacts, the red, green and blue (RGB) three-color light sources are sequentially lit, so that the three images of red, green and blue are displayed sequentially within one field of time, and the color is synthesized by using the characteristics of the human eye.

In the prior art, the subfields output by the liquid crystal on silicon (LCOS) display chip color timing method are arranged in the following order: RGBRGB, so each subfield needs to be completed after the scanning process of each subfield and the liquid crystal reaction time. Light up the red, green and blue LED light sources respectively, and turn off the lights before the start of sub-field scanning. The actual LED light-on time is the blanking period of each sub-field minus the LCD scanning time, and due to the field frequency requirements Due to limitations, the blanking period of each subfield cannot be too long, so the duty cycle of the LED lights in this driving mode is not high, and the utilization rate of the LED lights is not enough, which affects the display effect and leads to insufficient display brightness.

Fig. 1 shows the timing schematic diagram of the field timing color display method in the prior art, wherein, Vsync in the figure represents the field synchronous signal of the video input data, the high level is the field effective interval, and the low level is the field blanking Interval; Vsync_RGB represents the field synchronization signal output to each subfield on the LCOS chip; Pannel Data represents the data of the pixel display matrix on the LCOS; R_LED, G_LED, and B_LED represent the red, green, and blue LED lights respectively. High level is to turn on the light, low level is to turn off the light.

It can be seen from Figure 1 that within the time of one field Vsync of the input video signal, the data of three subfields Vsync_RGB are respectively output to the LCOS chip, the arrangement of the subfields is RGB, and the red LED light R_LED is turned on for After the R subfield scanning process ends and the liquid crystal reacts, the turn-off time is before the G subfield scanning starts; the green LED light G_LED is turned on after the G subfield scanning process ends and the liquid crystal reacts, and the light off time is the B subfield scanning start Before; the turn-on time of the blue LED light B_LED is after the B sub-field scanning process ends and the liquid crystal reacts, and the turn-off time is before the start of the next R sub-field scan. As a result, the duty cycle of the LED light is not high when the light is turned on, which leads to a low utilization rate of the LED light, thereby affecting the display effect and resulting in insufficient display brightness.

Therefore, it is urgent to design a new silicon-based liquid crystal field sequential color display method, thereby improving the display effect and increasing the display brightness.

Contents of the invention

In view of this, the purpose of the embodiments of the present invention is to provide a liquid crystal on silicon substrate sequential color display method and system, aiming to solve the problem of insufficient display brightness in the conventional field sequential color display method, which further affects the display effect.

The embodiment of the present invention is achieved in this way, a silicon-based liquid crystal field sequential color display method, the method comprising:

The input preset field data is multiplied to generate a multiplied data set with a higher frame rate;

Output the data in the frequency multiplication data group within one field time period of the field synchronization signal of the video input data, wherein the frequency multiplication data group includes parallel red, green and blue data of six subfields, and output the frequency multiplication The order of the data in the data group is to output two red subfield data, two green subfield data, and two blue subfield data in turn.

Preferably, the step of outputting two red subfield data specifically includes:

In the first subfield, only red subfield data is written to the chip pixel matrix of liquid crystal on silicon;

After the first sub-field scanning process ends, the red LED light is turned on after the preset liquid crystal response time;

In the second subfield, the red subfield data is continuously written into the chip pixel matrix of the liquid crystal on silicon substrate, and the red LED light is kept on.

Preferably, the step of outputting two green subfield data specifically includes:

In the third subfield, the green subfield data is written to the pixel matrix of the silicon-based liquid crystal chip, and the red LED light is turned off before the data is written in the third subfield;

After the scanning process of the third sub-field is over, turn on the green LED light after the preset liquid crystal response time;

In the fourth subfield, the green subfield data is continuously written into the chip pixel matrix of the liquid crystal on silicon substrate, and the green LED light is kept on.

Preferably, the step of outputting two blue subfield data specifically includes:

In the fifth subfield, write blue subfield data to the chip pixel matrix of liquid crystal on silicon, and turn off the green LED light before writing data in the fifth subfield;

After the fifth sub-field scanning process ends, turn on the blue LED light after the preset liquid crystal response time;

In the sixth subfield, continue to write the blue subfield data to the chip pixel matrix of liquid crystal on silicon, and keep the blue LED light on, and then turn off the blue LED before writing the data in the next set of frequency doubling data group lamp.

On the other hand, the present invention also provides a liquid crystal on silicon field sequential color display system, said system comprising:

A frequency multiplication processing module, which is used to process the input preset field data through frequency multiplication processing to generate a frequency multiplication data set with a higher frame rate;

The data output module is used to output the data in the frequency multiplication data group within one field time period of the field synchronization signal of the video input data, wherein the frequency multiplication data group includes parallel red, green and blue data of six subfields, And the order of outputting the data in the multiplied data group is to sequentially output two red subfield data, two green subfield data, and two blue subfield data respectively.

Preferably, the data output module includes:

The first output sub-module is used to only write red sub-field data to the chip pixel matrix of liquid crystal on silicon in the first sub-field;

The first light-on module is used to turn on the red LED light after the preset liquid crystal response time after the first sub-field scanning process ends;

The second output sub-module is used for continuing to write the red sub-field data to the chip pixel matrix of the liquid crystal on silicon in the second sub-field, and keep the red LED light to be turned on continuously.

Preferably, the data output module also includes:

The third output sub-module is used to write the green sub-field data to the chip pixel matrix of the silicon-based liquid crystal in the third sub-field, and at the same time turn off the red LED light before writing the data in the third sub-field;

The second light-on module is used to turn on the green LED light after the preset liquid crystal response time after the third sub-field scanning process ends;

The fourth output sub-module is used to continue to write the green sub-field data to the chip pixel matrix of the liquid crystal on silicon in the fourth sub-field, and keep the green LED light to continue to turn on.

Preferably, the data output module also includes:

The fifth output sub-module is used to write blue subfield data to the chip pixel matrix of liquid crystal on silicon in the fifth subfield, and turn off the green LED light before writing data in the fifth subfield;

The third light-on module is used to turn on the blue LED light after the preset liquid crystal response time after the fifth sub-field scanning process ends;

The sixth output sub-module is used to continue writing the blue sub-field data to the silicon-based liquid crystal chip pixel matrix in the sixth sub-field, and keep the blue LED light on, and then write the next set of frequency doubling data Turn off the blue LED light before entering the data.

In the embodiment of the present invention, the technical solution provided by the present invention can increase the brightness of the sequential color display of the liquid crystal on silicon field, so that the saturation of the sequential color display of the liquid crystal on silicon field is better, and further the display effect is improved.

Description of drawings

FIG. 1 is a timing schematic diagram of a field sequential color display method in the prior art;

Fig. 2 is a flow chart of a silicon-based liquid crystal field sequential color display method in an embodiment of the present invention;

Fig. 3 is a timing schematic diagram of a method for displaying a color display with a field timing sequence according to an embodiment of the present invention;

Fig. 4 is a timing schematic comparison display diagram of an embodiment of the present invention and a field sequential color display method in the prior art;

FIG. 5 is a schematic structural diagram of a liquid crystal on silicon field sequential color display system 10 in an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of the data output module 102 in an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The specific embodiment of the present invention provides a silicon-based liquid crystal field sequential color display method, which mainly includes the following steps:

S11. Perform frequency doubling processing on the input preset field data to generate a frequency doubling data set with a higher frame rate;

S12. Output the data in the frequency multiplication data group within one field time period of the field synchronization signal of the video input data, wherein the frequency multiplication data group includes parallel red, green and blue data of six subfields, and output the The order of the data in the multiplied data group is to output two red subfield data, two green subfield data, and two blue subfield data respectively.

The liquid crystal on silicon field sequential color display method provided by the present invention can increase the brightness of the liquid crystal on silicon field sequential color display, so that the saturation of the liquid crystal on silicon field sequential color display effect is better, thereby improving the display effect.

A liquid crystal on silicon field sequential color display method provided by the present invention will be described in detail below.

Please refer to FIG. 2 , which is a flowchart of a liquid crystal on silicon field sequential color display method in an embodiment of the present invention.

In step S11, the input preset field data is subjected to frequency doubling processing to generate a frequency doubling data set with a higher frame rate.

In step S12, the data in the multiplied data group is output within one field time period of the field synchronization signal of the video input data, wherein the multiplied data group includes six subfields of parallel red, green and blue (RGB) data, and the order of outputting the data in the frequency-multiplied data group is to sequentially output two red subfield data, two green subfield data, and two blue subfield data.

In this embodiment, the sub-step of outputting two red subfield data in step S12 specifically includes:

In the first subfield, only red subfield data is written to the chip pixel matrix of Liquid Crystal On Silicon (LCOS);

After the first sub-field scanning process ends, the red LED light is turned on after the preset liquid crystal response time;

In the second subfield, the red subfield data is continuously written into the chip pixel matrix of the liquid crystal on silicon substrate, and the red LED light is kept on.

In this embodiment, the sub-step of outputting two green subfield data in step S12 specifically includes:

In the third subfield, the green subfield data is written to the pixel matrix of the silicon-based liquid crystal chip, and the red LED light is turned off before the data is written in the third subfield;

After the scanning process of the third sub-field is over, turn on the green LED light after the preset liquid crystal response time;

In the fourth subfield, the green subfield data is continuously written into the chip pixel matrix of the liquid crystal on silicon substrate, and the green LED light is kept on.

In this embodiment, the sub-step of outputting two blue subfield data in step S12 specifically includes:

In the fifth subfield, write blue subfield data to the chip pixel matrix of liquid crystal on silicon, and turn off the green LED light before writing data in the fifth subfield;

After the fifth sub-field scanning process ends, turn on the blue LED light after the preset liquid crystal response time;

In the sixth subfield, continue to write the blue subfield data to the chip pixel matrix of liquid crystal on silicon, and keep the blue LED light on, and then turn off the blue LED before writing the data in the next set of frequency doubling data group lamp.

In this embodiment, the steps S11-S12 are repeated to perform the same processing on the data of each field, so as to realize the whole display method. In this embodiment, under the condition of ensuring that the screen does not flicker, the vertical blanking period of each subfield is usually longer, which also allows the LED lamp to be turned on for a longer period of time, with higher brightness and better display effect.

Please refer to FIG. 3 , which is a schematic timing diagram of a method for displaying a color display with a field timing sequence according to an embodiment of the present invention.

As shown in Figure 3, wherein, Vsync represents the field synchronization signal of the video input data, the high level is the field effective interval, and the low level is the field blanking interval; Vsync_RGB represents the field output to each subfield on the LCOS chip Synchronization signal; Panel Data represents the data of the pixel display matrix on LCOS; R_LED, G_LED, and B_LED are respectively represented as red, green, and blue LED light-on signs, high level means light-on, and low level means light-off.

As can be seen from Figure 3, in the time of one field Vsync of the input video signal, the data of six subfields Vsync_RGB are respectively output to the LCOS chip, and the arrangement of the subfields is RRGGBB arrangement. The specific implementation method is as follows: first, The second subfield writes R data to the pixel matrix, the third and fourth subfields write G data to the pixel matrix, and the fifth and sixth subfields write B data to the pixel matrix; in the field of the first subfield Write the R subfield data into the pixel matrix circuit in the effective interval, continue to write the R subfield data in the next second subfield, and then after the first subfield data scanning is completed and after a period of liquid crystal response time , turn on the red LED light.

Among them, the turn-on time of the red LED light R_LED is after the first R sub-field scanning process ends and after a period of liquid crystal reaction time, the light-off time is before the start of the first G sub-field scan; the green LED light G_LED turn-on time is the second After a G sub-field scanning process ends and after a period of liquid crystal reaction time, the light-off time is before the first B sub-field scanning starts; the blue LED light B_LED is turned on when the first B sub-field scanning process ends and then after After a period of liquid crystal response time, the time to turn off the light is before the first R subfield scan of the next field starts. Since the data written in the first and second subfields are all R subfield data, and the data written in the two subfields are not much different, so the red LED light can be used when writing the second subfield R subfield data. Turn off the light, the red LED light is turned on all the time, and the red LED light is not turned off until the data of the third subfield is written. Green LED lights, blue LED lights operate similarly to red LED lights.

In this way, under the condition of ensuring that the picture does not flicker, the field blanking period of each subfield is usually longer, which can also make the LED light turn on for a longer time, with higher brightness and better display effect.

Please refer to FIG. 4 , which is a schematic comparison display diagram of a timing diagram of an embodiment of the present invention and a field sequential color display method in the prior art.

As shown in Figure 4, wherein, Vsync1 represents the field synchronization signal of the sub-field in the display method of the prior art, the high level is the field effective interval, and the low level is the field blanking interval; Vsync2 represents an embodiment of the present invention The field synchronization signal of the sub-field in the display method, the high level is the field effective interval, and the low level is the field blanking interval; Light indication signals; R_LED2 , G_LED2 , B_LED2 respectively represent red, green, and blue LED light-on indication signals in the display method according to an embodiment of the present invention.

Compared with the prior art, under the same clock frequency, there is the following relationship: 5*V_Cnt2*H_Cnt2=3*V_Cnt1*H_Cnt1, wherein, V_Cnt2 represents the value of each subfield under the condition that the picture does not flicker in one embodiment of the present invention. The maximum number of rows, H_Cnt2 represents the number of columns; V_Cnt1 represents the maximum number of rows of each subfield in the prior art when the picture does not flicker, and H_Cnt1 is the number of columns; and, in general, H_Cnt1=H_Cnt2, therefore, 5*V_Cnt2= 3*V_Cnt1.

As shown in Figure 4, in the case that the LED turn-on time is still consistent, if the LED light is turned on in the V_cnt row, the duty cycle of the LED light in the prior art is M1, where M1=(V_Cnt1-Vcnt)/ (V_Cnt1*3); and the duty cycle of the LED lamp in one embodiment of the present invention is M2, wherein M2=(2*V_Cnt2-Vcnt)/(V_Cnt2*2*3).

If the duty cycles of the two are compared, then

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))

Under the condition that V_Cnt1 remains unchanged, the larger Vcnt is, the larger M2/M1 is, and generally Vcnt=0.7*V_Cnt1, therefore, M2/M1=15/12=1.39, that is to say, the LED in one embodiment of the present invention The duty cycle of the lamp is at least 1.39 times that of the LED lamp in the prior art. In other words, the utilization rate of the LED lamp in one embodiment of the present invention is improved, and the brightness can also be improved, thereby improving the entire display screen. display effect.

The liquid crystal on silicon field sequential color display method provided by the present invention can increase the brightness of the liquid crystal on silicon field sequential color display, so that the saturation of the liquid crystal on silicon field sequential color display effect is better, thereby improving the display effect.

The specific embodiment of the present invention also provides a silicon-based liquid crystal field sequential color display system 10, which mainly includes:

The frequency doubling processing module 101 is used to process the input preset field data through frequency doubling processing to generate a frequency doubling data set with a higher frame rate;

The data output module 102 is used to output the data in the frequency multiplication data group within one field time period of the field synchronization signal of the video input data, wherein the frequency multiplication data group includes parallel red, green and blue data of six subfields , and the order of outputting the data in the frequency-multiplied data group is to sequentially output two red subfield data, two green subfield data, and two blue subfield data.

The liquid crystal-on-silicon field sequential color display system 10 provided by the present invention can increase the brightness of the silicon-based liquid crystal field sequential color display, so that the saturation of the silicon-based liquid crystal field sequential color display effect is better, and the display effect is further improved.

A liquid crystal on silicon field sequential color display system 10 provided by the present invention will be described in detail below.

Please refer to FIG. 5 , which is a schematic structural diagram of a liquid crystal on silicon field sequential color display system 10 according to an embodiment of the present invention. In this embodiment, the liquid crystal on silicon field sequential color display system 10 includes a frequency doubling processing module 101 and a data output module 102 .

The frequency doubling processing module 101 is configured to perform frequency doubling processing on the input preset field data to generate a frequency doubling data set with a higher frame rate.

The data output module 102 includes a first output sub-module 1021, a first light-on module 1022, a second output sub-module 1023, a third output sub-module 1024, a second light-on module 1025, a fourth output sub-module 1026, a fifth The output sub-module 1027 , the third light-on module 1028 and the sixth output sub-module 1029 are shown in FIG. 6 .

Please refer to FIG. 6 , which is a schematic structural diagram of the data output module 102 in an embodiment of the present invention.

The first output sub-module 1021 is used to write red sub-field data only to the chip pixel matrix of liquid crystal on silicon in the first sub-field;

The first light-on module 1022 is used to turn on the red LED light after the preset liquid crystal response time after the first sub-field scanning process ends;

The second output sub-module 1023 is used for continuing to write the red sub-field data into the pixel matrix of the liquid crystal on silicon chip in the second sub-field, and keep the red LED light to be turned on.

The third output sub-module 1024 is used to write green subfield data to the chip pixel matrix of liquid crystal on silicon in the third subfield, and turn off the red LED light before writing data in the third subfield;

The second light-on module 1025 is used to turn on the green LED light after the preset liquid crystal response time after the third sub-field scanning process ends;

The fourth output sub-module 1026 is used for continuing to write the green sub-field data into the pixel matrix of the liquid crystal on silicon chip in the fourth sub-field, and keep the green LED light to be turned on.

The fifth output sub-module 1027 is used to write blue subfield data to the chip pixel matrix of liquid crystal on silicon in the fifth subfield, and turn off the green LED light before writing data in the fifth subfield;

The third light-on module 1028 is used to turn on the blue LED light after the preset liquid crystal response time after the fifth sub-field scanning process ends;

The sixth output sub-module 1029 is used to continue to write the blue sub-field data to the chip pixel matrix of liquid crystal on silicon in the sixth sub-field, and keep the blue LED lights on, and then write the next set of frequency multiplication data Turn off the blue LED light before the data in the group.

In this embodiment, under the condition of ensuring that the screen does not flicker, the vertical blanking period of each subfield is usually longer, which also allows the LED lamp to be turned on for a longer period of time, with higher brightness and better display effect.

The liquid crystal on silicon field sequential color display system 10 provided by the present invention can increase the brightness of the liquid crystal on silicon field sequential color display, thereby making the saturation of the liquid crystal on silicon field sequential color display effect better, and further improving the display effect.

In the embodiment of the present invention, the technical solution provided by the present invention can increase the brightness of the sequential color display of the liquid crystal on silicon field, so that the saturation of the sequential color display of the liquid crystal on silicon field is better, and further the display effect is improved.

It is worth noting that in the above embodiments, the units included are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of the functional units are also It is only for the convenience of distinguishing each other, and is not intended to limit the protection scope of the present invention.

In addition, those of ordinary skill in the art can understand that all or part of the steps in the methods of the above-mentioned embodiments can be completed by instructing related hardware through programs, and the corresponding programs can be stored in a computer-readable storage medium. Storage media, such as ROM/RAM, magnetic disk or optical disk, etc.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

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.