CN203775321U - Silicon-based liquid crystal display screen driving device - Google Patents
Silicon-based liquid crystal display screen driving device Download PDFInfo
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- CN203775321U CN203775321U CN201320534976.8U CN201320534976U CN203775321U CN 203775321 U CN203775321 U CN 203775321U CN 201320534976 U CN201320534976 U CN 201320534976U CN 203775321 U CN203775321 U CN 203775321U
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Abstract
The utility model discloses a silicon-based liquid crystal display screen driving device. The device comprises a video signal transition module, an SSD1960 chip, and a master control module, which are connected electrically. The video signal transition module is used for converting an external video signal into an MCU8080 interface video digital signal matched with an interface of the SSD1960 chip. The SSD1960 chip is used for converting a serial video data signal into a corresponding parallel RGB video data signal. The master control module is used for driving a silicon-based liquid crystal display screen according to the parallel video data signal. According to the silicon-based liquid crystal display screen driving device, all the external video signals of different formats can be used to drive the silicon-based liquid crystal display screen. Therefore, the driving device is convenient. Moreover, the connection between the digital signals is improved.
Description
Technical field
The utility model relates to silicon-based liquid crystal display screen Driving technique field, particularly relates to a kind of silicon-based liquid crystal display screen drive unit.
Background technology
Liquid crystal on silicon (Liquid Crystal on Silicon, LCOS) is a kind of based on reflective-mode, the matrix liquid crystal display device that size is very little.This matrix adopts CMOS technology processing and fabricating on silicon to form.
Traditional digital video signal is the vision signal of MCU8080 pattern, but the feature of shielding for LCOS need to be used parallel rgb video digital signal to drive when LCOS screen is driven.In the time that LCOS screen is driven, select different drive units to drive for the vision signal of the different-format of inputting.
For the external video digital signal of different-format, need to use to drive by different drive units, the docking between digital signal is improved not and need to select drive unit in the time of the digital video signal of input different-format, cumbersome.
Utility model content
Based on this, be necessary perfect not for digital signal docking, need to select different driving device to cause cumbersome problem for the vision signal of different-format, provide a kind of and can improve digital signal docking, silicon-based liquid crystal display screen drive unit easy to use.
A kind of silicon-based liquid crystal display screen drive unit, for driving silicon-based liquid crystal display screen, comprising:
Vision signal modular converter, described vision signal modular converter is converted to outer video signal the MCU8080 interface video signal matching with the interface of SSD1960 chip; Described outer video signal comprises outside parallel video digital signal and external series video signal;
SSD1960 chip, be electrically connected described vision signal modular converter, receive the described MCU8080 interface video signal of described vision signal modular converter output, and described MCU8080 interface video signal is converted to corresponding parallel rgb video digital signal;
Main control module, is electrically connected described SSD1960 chip, reads the described parallel rgb video digital signal of described SSD1960 chip output, and drives described silicon-based liquid crystal display screen according to described parallel rgb video digital signal.
In an embodiment, also comprise video reception module therein, described video reception module is electrically connected described vision signal modular converter, receives described outer video signal and described outer video signal is sent to described vision signal modular converter.
In an embodiment, described video reception module comprises therein:
Parallel video signal receiving element, described parallel video signal receiving element receives described outside parallel video digital signal and described outside parallel video digital signal is sent to described vision signal modular converter;
Serial video signal receiving element, described serial video signal receiving element receives described external series video signal and described external series video signal is sent to described vision signal modular converter.
In an embodiment, described outside parallel video digital signal is that resolution is the parallel rgb video digital signal of 320*240*18bit therein.
In an embodiment, also comprise vision signal selection module therein, described vision signal selects module to be electrically connected described video reception module, described vision signal modular converter and described SSD1960 chip;
Described vision signal selects module to select the described outer video signal of described video reception module output, described outside parallel video digital signal is sent to described vision signal modular converter, described external series video signal is directly sent to described SSD1960 chip.
Therein in an embodiment, the parallel rgb video digital signal that the resolution that the parallel rgb video digital signal of described SSD1960 chip output is high frame frequency is 320*240*18bit.
In an embodiment, described main control module comprises therein:
Carry out the subfield selected cell of subfield selection according to predefined procedure, be electrically connected described SSD1960 chip, receive the described parallel rgb video digital signal of described SSD1960 chip output, carry out the selection of R subfield, G subfield and B subfield and export according to the rotation of R subfield, R subfield, G subfield, G subfield, B subfield, B subfield the video signal that each subfield resolution is 320*240*6bit;
Sequential colorization driver element, be electrically connected described subfield selected cell and described silicon-based liquid crystal display screen, the video signal that described sequential colorization driver element is 320*240*6bit according to the described resolution of described subfield selected cell output produces liquid crystal on silicon and drives sequential, drives described silicon-based liquid crystal display screen.
Therein in an embodiment, also output field signal of described SSD1960 chip, described subfield selected cell carries out subfield selection according to described field signal.
In an embodiment, described liquid crystal on silicon drives sequential to comprise serial bus configuration signal, valid data gating signal therein.
In an embodiment, also comprise initialization module therein, described initialization module is electrically connected described SSD1960 chip, for described SSD1960 chip is carried out to initialization.
Above-mentioned silicon-based liquid crystal display screen drive unit, comprises vision signal modular converter, SSD1960 chip and the main control module of electrical connection.By vision signal modular converter, outer video signal is converted to the MCU8080 interface video signal matching with the interface of SSD1960 chip, serial MCU8080 interface video signal is converted to corresponding parallel rgb video digital signal by SSD1960 chip, and main control module drives silicon-based liquid crystal display screen according to above-mentioned parallel rgb video digital signal.Above-mentioned silicon-based liquid crystal display screen drive unit, has realized dissimilar outer video signal and all can drive silicon-based liquid crystal display screen, more convenient; And the docking between perfect digital signal.
Brief description of the drawings
Fig. 1 is the silicon-based liquid crystal display screen drive unit schematic diagram of an embodiment;
Fig. 2 is the silicon-based liquid crystal display screen drive unit schematic diagram of another embodiment;
Fig. 3 is subfield output timing diagram embodiment illustrated in fig. 2;
Fig. 4 is R subfield schematic diagram embodiment illustrated in fig. 2;
Fig. 5 is G subfield schematic diagram embodiment illustrated in fig. 2;
Fig. 6 is B subfield schematic diagram embodiment illustrated in fig. 2;
Fig. 7 is that liquid crystal on silicon embodiment illustrated in fig. 2 drives sequential chart.
Embodiment
A kind of silicon-based liquid crystal display screen drive unit, for driving silicon-based liquid crystal display screen, can realize and use different outer video signals all can drive silicon-based liquid crystal display screen, easy to use; And the docking between perfect digital signal.
Below in conjunction with drawings and Examples, a kind of silicon-based liquid crystal display screen drive unit is described in more detail.
Shown in Fig. 1, it is the silicon-based liquid crystal display screen drive unit schematic diagram of an embodiment.
Shown in Fig. 1, a kind of silicon-based liquid crystal display screen drive unit 100, for driving silicon-based liquid crystal display screen 200, comprising: vision signal modular converter 120, SSD1960 chip 140 and the main control module 160 of electrical connection.By vision signal modular converter 120, outer video signal is converted to the MCU8080 interface video signal matching with the interface of SSD1960 chip 140, MCU8080 interface video signal is converted to corresponding parallel rgb video digital signal by SSD1960 chip 140, and main control module 160 drives silicon-based liquid crystal display screen 200 according to above-mentioned parallel rgb video digital signal.Concrete, said external vision signal comprises outside parallel video digital signal and external series video signal.
Above-mentioned silicon-based liquid crystal display screen 200 can be realized by outside parallel video digital signal and external series video signal all can drive silicon-based liquid crystal display screen 200, more convenient; While having avoided using dissimilar outer video signal to drive silicon-based liquid crystal display screen 200, need to use different drive units to drive, the docking between perfect digital signal.
Fig. 2 is the silicon-based liquid crystal display screen drive unit schematic diagram of another embodiment.
With reference to figure 2, above-mentioned silicon-based liquid crystal display screen drive unit 100 further comprises video reception module 110, video reception module 110 is electrically connected above-mentioned vision signal modular converter 120, and video reception module 110 receives outer video signal and said external vision signal is sent to vision signal modular converter 120.
Concrete, with reference to figure 2, above-mentioned video reception module 110 comprises parallel video signal receiving element 112 and serial video signal receiving element 114, and above-mentioned parallel video signal receiving element 112 and serial video signal receiving element 114 receive respectively outside parallel video digital signal and external series video signal.
Further, above-mentioned silicon-based liquid crystal display screen drive unit 100 further comprises vision signal selection module 130.Above-mentioned vision signal selects module 130 to connect respectively above-mentioned parallel video signal receiving element 112, serial video signal receiving element 114, vision signal modular converter 120 and SSD1960 chip 140.Outside parallel video digital signal and external series video signal that vision signal selects module 130 to export parallel video signal receiving element 112 and serial video signal receiving element 114 are selected, outside parallel video digital signal is sent to vision signal modular converter 120, external series video signal is directly sent to SSD1960 chip 140.
Concrete, said external parallel video digital signal is that resolution is the parallel rgb video digital signal of 320*240*18bit.In other embodiment, above-mentioned SSD1960 chip 140 also can be other chips, such as SSD1961 chip etc.In the time that above-mentioned SSD1960 chip 140 is other chips, said external parallel video digital signal is the corresponding parallel rgb video digital signal that can be other resolution also.For example, in the time that above-mentioned SSD1960 chip 140 becomes SSD1961 chip, said external parallel video digital signal is that resolution is the parallel rgb video digital signal of 640*480*18bit.
Concrete, above-mentioned SSD1960 chip 140 interfaces are serial 8080 interfaces, if matching, said external serial video digital signal and serial 8080 interfaces are MCU8080 interface video signal, vision signal selects module 130 that said external serial video digital signal is directly sent to SSD1960 chip 140 so, saves the delivery time.If said external serial video digital signal is not mated with serial 8080 interfaces, it is for example the serial video digital signal that serial 6800 interface modes match, vision signal selects module 130 that said external serial video digital signal is sent to vision signal modular converter 120, sends to SSD1960 chip 140 after above-mentioned serial video digital signal being converted to the MCU8080 interface video signal matching with serial 8080 interfaces by vision signal modular converter 120 again.
Can realize dissimilar outer video signal is converted to the MCU8080 interface video signal matching with SSD1960 chip 140 by vision signal modular converter 120, the docking between perfect digital signal, easy to use.In other embodiments, when above-mentioned SSD1960 chip 140 is become to other chips, above-mentioned vision signal modular converter 120 also can be converted to outer video signal the vision signal that other chips different from SSD1960 chip 140 match, such as SSD1961 chip etc.
Above-mentioned SSD1960 chip 140 receives the MCU8080 interface video signal after 120 conversions of vision signal modular converter, or select module 130 directly to receive external series video signal (the MCU8080 interface video signal matching with SSD1960 chip interface) through vision signal, and the MCU8080 interface video signal receiving is converted to the parallel rgb video digital signal that resolution is 320*240*18bit.In the time that above-mentioned main control module reads the parallel rgb video digital signal that resolution that above-mentioned SSD1960 chip 140 exports is 320*240*18bit, by improving the output frequency of SSD1960 chip, thus the above-mentioned SSD1960 chip 140 parallel rgb video digital signal that to export the resolution of high frame frequency be 320*240*18bit.By exporting the parallel rgb video digital signal of high frame frequency, realize the lifting of frame frequency, solve the low problem little with driving frame per second of driving frequency in the time driving silicon-based liquid crystal display screen 200.
With reference to figure 2, further, above-mentioned silicon-based liquid crystal display screen drive unit 100 also comprises initialization module 150, and initialization module 150 is electrically connected SSD1960 chip 140, completes the initialization to SSD1960 chip 140.
With reference to figure 2, above-mentioned main control module 160 comprises: the subfield selected cell 162 of electrical connection and sequential colorization driver element 164.Above-mentioned subfield selected cell 162 is electrically connected above-mentioned SSD1960 chip 140, and sequential colorization driver element 164 is electrically connected above-mentioned silicon-based liquid crystal display screen 200.
Carry out the selection of R subfield, G subfield and B subfield and export according to the rotation of R subfield, R subfield, G subfield, G subfield, B subfield, B subfield the video signal that each subfield resolution is 320*240*6bit by subfield selected cell 162, the video signal that sequential colorization driver element 164 is 320*240*6bit according to above-mentioned resolution produces liquid crystal on silicon and drives sequential, thereby drives silicon-based liquid crystal display screen 200 to light.
Above-mentioned subfield selected cell 162 receives the parallel rgb video digital signal that above-mentioned SSD1960 chip 140 is exported, and carry out the selection of R subfield, G subfield and B subfield, export according to the rotation of R subfield, R subfield, G subfield, G subfield, B subfield, B subfield the video signal that each subfield resolution is 320*240*6bit.In other embodiment, also can export according to other subfield output order, be not limited to above-mentioned subfield output order.According to the rotation output video digital signal of R subfield, R subfield, G subfield, G subfield, B subfield, B subfield, compared to according to the pulse width modulation of the Sequential output vision signal of R subfield, G subfield, B subfield (Pulse Width Modulation, PWM) large, when silicon-based liquid crystal display screen 200 is shown, picture disply is more stable; Can reduce simultaneously between R subfield, G subfield and the each subfield of B subfield cause mix pornographic condition, can ensure that the color of each subfield is purer, make the display effect of silicon-based liquid crystal display screen 200 better.
Shown in Fig. 3, it is subfield output timing diagram embodiment illustrated in fig. 2.
Shown in Fig. 4, it is R subfield schematic diagram embodiment illustrated in fig. 2.
Shown in Fig. 5, it is G subfield schematic diagram embodiment illustrated in fig. 2.
Shown in Fig. 6, it is B subfield schematic diagram embodiment illustrated in fig. 2.
Concrete, above-mentioned SSD1960 chip 140 is gone back output field signal VS(with reference to figure 3), the field signal that subfield selected cell 162 is exported according to SSD1960 chip 140 carries out subfield selection.With reference to figure 3, field signal VS high level is effective, and in the time of first high level, the video data of the 320*240*18bit to input is only selected the data of R subfield, export so R subfield data bit 320*240*6bit(with reference to figure 4), lose the data of G subfield and B subfield; The same video data of selecting output R subfield in the time of second high level; In the time of the 3rd and the 4th high level, the video data of the 320*240*18bit to input is only selected the data of G subfield, exports so G subfield data bit 320*240*6bit(with reference to figure 5), lose the data of R subfield and B subfield; In the time of the 5th and the 6th high level, the video data of the 320*240*18bit to input is only selected the data of B subfield, exports so B subfield data bit 320*240*6bit(with reference to figure 6), lose the data of R subfield and G subfield.
Shown in Fig. 7, for liquid crystal on silicon embodiment illustrated in fig. 2 drives sequential chart.
With reference to figure 7, above-mentioned sequential colorization driver element 164 produces liquid crystal on silicon and drives sequential, adopt the frame alternating mode of R subfield, R subfield, G subfield, G subfield, B subfield, B subfield, the video data signal that each frame data comprises each subfield, every comprises the pixel of 320*240*6bit.The LED lamp that PWM_R, PWM_G, PWM_B signal are controlled respectively R, G, the B of silicon-based liquid crystal display screen 200 3 coloured light machines is lighted and is effective in the time of high level respectively, and above-mentioned silicon-based liquid crystal display screen 200 3 coloured light machine control silicon-based liquid crystal display screens 200 show.In the time that PWM_R is high level, the red globe lamp in three coloured light machines is lighted; In the time that PWM_G is high level, the green light lamp in three coloured light machines is lighted; In the time that PWM_B is high level, the blue-ray light in three coloured light machines is lighted.
With reference to figure 7, the video data control R lamp of every two frame R subfields is lighted, and the video data control G lamp of the G subfield of every two frames is lighted, and the B subfield Data Control B lamp of every two frames is lighted.Light by the corresponding lamp of video data control that every two frames are set, avoided mixing between adjacent R, G, B subfield the generation of pornographic condition, can ensure that the color of each subfield is purer, make the display effect of silicon-based liquid crystal display screen 200 better.
Sequential colorization driver element 164 also produces DE signal, and above-mentioned DE signal is valid data gating signal, and high level is effective.When above-mentioned DE signal is effective, the video signal data that above-mentioned each subfield resolution is 320*240*6bit is effective.
Concrete, above-mentioned liquid crystal on silicon drives sequential also to comprise serial bus configuration signal (not shown), completes the initial configuration setting to silicon-based liquid crystal display screen 200.
Above-mentioned silicon-based liquid crystal display screen drive unit 100, realizes and uses different outer video signals all can drive silicon-based liquid crystal display screen 200, easy to use; And the docking between perfect digital signal.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a silicon-based liquid crystal display screen drive unit, for driving silicon-based liquid crystal display screen, is characterized in that, comprising:
Vision signal modular converter, described vision signal modular converter is converted to outer video signal the MCU8080 interface video signal matching with the interface of SSD1960 chip; Described outer video signal comprises outside parallel video digital signal and external series video signal;
SSD1960 chip, be electrically connected described vision signal modular converter, receive the described MCU8080 interface video signal of described vision signal modular converter output, and described MCU8080 interface video signal is converted to corresponding parallel rgb video digital signal;
Main control module, is electrically connected described SSD1960 chip, reads the described parallel rgb video digital signal of described SSD1960 chip output, and drives described silicon-based liquid crystal display screen according to described parallel rgb video digital signal.
2. silicon-based liquid crystal display screen drive unit according to claim 1, it is characterized in that, also comprise video reception module, described video reception module is electrically connected described vision signal modular converter, receives described outer video signal and described outer video signal is sent to described vision signal modular converter.
3. silicon-based liquid crystal display screen drive unit according to claim 2, is characterized in that, described video reception module comprises:
Parallel video signal receiving element, described parallel video signal receiving element receives described outside parallel video digital signal and described outside parallel video digital signal is sent to described vision signal modular converter;
Serial video signal receiving element, described serial video signal receiving element receives described external series video signal and described external series video signal is sent to described vision signal modular converter.
4. silicon-based liquid crystal display screen drive unit according to claim 3, is characterized in that, described outside parallel video digital signal is that resolution is the parallel rgb video digital signal of 320*240*18bit.
5. silicon-based liquid crystal display screen drive unit according to claim 2, it is characterized in that, also comprise vision signal selection module, described vision signal selects module to be electrically connected described video reception module, described vision signal modular converter and described SSD1960 chip;
Described vision signal selects module to select the described outer video signal of described video reception module output, described outside parallel video digital signal is sent to described vision signal modular converter, described external series video signal is directly sent to described SSD1960 chip.
6. silicon-based liquid crystal display screen drive unit according to claim 1, is characterized in that, the parallel rgb video digital signal that the resolution that the parallel rgb video digital signal of described SSD1960 chip output is high frame frequency is 320*240*18bit.
7. silicon-based liquid crystal display screen drive unit according to claim 6, is characterized in that, described main control module comprises:
Carry out the subfield selected cell of subfield selection according to predefined procedure, be electrically connected described SSD1960 chip, receive the described parallel rgb video digital signal of described SSD1960 chip output, carry out the selection of R subfield, G subfield and B subfield and export according to the rotation of R subfield, R subfield, G subfield, G subfield, B subfield, B subfield the video signal that each subfield resolution is 320*240*6bit;
Sequential colorization driver element, be electrically connected described subfield selected cell and described silicon-based liquid crystal display screen, the video signal that described sequential colorization driver element is 320*240*6bit according to the described resolution of described subfield selected cell output produces liquid crystal on silicon and drives sequential, drives described silicon-based liquid crystal display screen.
8. silicon-based liquid crystal display screen drive unit according to claim 7, is characterized in that, also output field signal of described SSD1960 chip, and described subfield selected cell carries out subfield selection according to described field signal.
9. silicon-based liquid crystal display screen drive unit according to claim 7, is characterized in that, described liquid crystal on silicon drives sequential to comprise serial bus configuration signal, valid data gating signal.
10. silicon-based liquid crystal display screen drive unit according to claim 1, is characterized in that, also comprises initialization module, and described initialization module is electrically connected described SSD1960 chip, for described SSD1960 chip is carried out to initialization.
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| CN201320534976.8U CN203775321U (en) | 2013-08-29 | 2013-08-29 | Silicon-based liquid crystal display screen driving device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640406A (en) * | 2020-07-16 | 2020-09-08 | 歌尔光学科技有限公司 | Display driving system and method and display device |
| CN112053663A (en) * | 2020-09-11 | 2020-12-08 | 上海钜成锐讯科技有限公司 | LCoS display board card and display device |
-
2013
- 2013-08-29 CN CN201320534976.8U patent/CN203775321U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640406A (en) * | 2020-07-16 | 2020-09-08 | 歌尔光学科技有限公司 | Display driving system and method and display device |
| CN112053663A (en) * | 2020-09-11 | 2020-12-08 | 上海钜成锐讯科技有限公司 | LCoS display board card and display device |
| CN112053663B (en) * | 2020-09-11 | 2022-07-12 | 上海钜成锐讯科技有限公司 | LCoS display board card and display device |
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