CN102841465B - Utilize the linear array light valve that stn liquid crystal display screen makes - Google Patents
Utilize the linear array light valve that stn liquid crystal display screen makes Download PDFInfo
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- CN102841465B CN102841465B CN201210354153.7A CN201210354153A CN102841465B CN 102841465 B CN102841465 B CN 102841465B CN 201210354153 A CN201210354153 A CN 201210354153A CN 102841465 B CN102841465 B CN 102841465B
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- liquid crystal
- display screen
- circuit board
- crystal display
- control circuit
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Abstract
The present invention is the linear array light valve utilizing stn liquid crystal display screen to make, structure comprises stn liquid crystal display screen, control circuit board, TFT Source drive IC group, a FPC flexible circuit board, the 2nd FPC flexible circuit board, wherein TFT Source drive IC group is fastened on above the glass of stn liquid crystal display screen, COM drive electrode on stn liquid crystal display screen is connected on control circuit board by the 2nd FPC flexible circuit board, and TFT Source drive IC group is connected on control circuit board by a FPC flexible circuit board.Advantage: utilize TFT source control IC and self-designed Vcom voltage generation circuit to drive stn liquid crystal display screen, without TFT display screen or special drive IC die sinking, both saved expense and cycle, and met again the technical requirement of linear array light valve.
Description
Technical field
What the present invention relates to is a kind of laser linear array light valve utilizing stn liquid crystal display screen to make, and belongs to the technical field of liquid crystal display.
Background technology
In high power laser system, in order to reduce self-focusing effect, improving the gain inequality of system safety operation flux and compensation main amplifier, needing to carry out spacing shaping to injection laser beam, to exporting the lower super-Gaussian flat top beam of beam modulation near field degree.Conventional laser apparatus for shaping employing MASK spacing shaping device, but there is the shortcomings such as making is complicated, machinery adjusts difficulty, applicable dirigibility is low.In order to overcome the shortcoming of MASK mode, start to adopt LCDs part for laser spacing shaping.Be applied to the linear array light valve of one dimension shaping because resolution special (950X1), gray scale calling hierarchy high (64 grades), does not have suitable generic liquid crystal device to mate.And the die sinking of TFT LCDs costly, fabrication cycle is long, can not meet service condition flexibly.
Summary of the invention
The present invention proposes a kind of laser linear array light valve utilizing stn liquid crystal display screen part to make, and its object aims to provide the laser spacing shaping scheme of low-cost and high-performance.Adopt the stn liquid crystal display screen of TFT LCDs SOURCE drive IC can meet technology and the cost requirement of laser linear array light valve needs preferably.
Technical solution of the present invention: it is characterized in that structure comprises stn liquid crystal display screen, control circuit board, TFT Source drive IC group, a FPC flexible circuit board, the 2nd FPC flexible circuit board, wherein TFT Source drive IC group is fastened on above the glass of stn liquid crystal display screen, COM drive electrode on stn liquid crystal display screen is connected on control circuit board by the 2nd FPC flexible circuit board, and TFT Source drive IC group is connected on control circuit board by a FPC flexible circuit board.
Advantage of the present invention: utilize TFT source control IC and self-designed com voltage generation circuit to drive stn liquid crystal display screen, without TFT or special drive IC die sinking, both saved expense and cycle, and met again the technical requirement of linear array light valve.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the laser linear array light valve utilizing stn liquid crystal display screen part to make.
Accompanying drawing 2 is the electrical schematic diagrams of the laser linear array light valve utilizing stn liquid crystal display screen part to make.
In figure 1 is stn liquid crystal display screen, 2 are control circuit boards, 3 are TFT Source drive IC groups, 4 are FPC flexible circuit board, 5 is the 2nd FPC flexible circuit board.
Embodiment
Contrast accompanying drawing 1, utilize the linear array light valve that stn liquid crystal display screen makes, its structure comprises stn liquid crystal display screen 1, control circuit board 2, TFT Source drive IC group the 3, the one FPC flexible circuit board 4, the 2nd FPC flexible circuit board 5, wherein TFT Source drive IC group 3 is fastened on above the glass of stn liquid crystal display screen 1, COM drive electrode on stn liquid crystal display screen 1 is connected on control circuit board 2 by the 2nd FPC flexible circuit board 5, and TFT Source drive IC group 3 is connected on control circuit board 2 by a FPC flexible circuit board 4.
Described stn liquid crystal display screen 1 comprises multiple pixel electrode, COM drive electrode, and wherein multiple pixel electrode receives multiple TFT Source drive IC signal, and COM drive electrode receives the signal that VCOM signal generating circuit produces; Be the operative body part of linear array light valve, working laser is modulated when passing through stn liquid crystal display screen 1.
Display control circuit on described control circuit board 2 connects computer, stn liquid crystal display screen 1 and TFT Source drive IC group 3, and the information for transmitting according to computer related software produces corresponding drive singal.
Described TFT Source drive IC group 3, above the glass being bundled in stn liquid crystal display screen 1, has corresponding cabling above glass.
Described control circuit board 2 comprises RS232 interface, CPU, display control circuit, VCOM signal generating circuit; Wherein the signal input/output end of RS232 interface is corresponding with the signal input/output terminal of CPU connects, first signal output part of CPU connects with the signal input part of VCOM signal generating circuit, the secondary signal output terminal of CPU connects with the signal input part of display control circuit, and the signal output part of VCOM signal generating circuit connects COM drive electrode; RS232 interface circuit adopts MAX232 interface chip, for the communication with extraneous computer, the signal produced by extraneous computer related software accepts, send CPU to, CPU adopts the LPC2214 IC of ARM7 kernel, it is the core controlling this system works, the work of the multiple functional blocks on cooperation control circuit board; Display control circuit adopts SID13506 Special colored display and control IC, periphery is connected to S41LV16100 SDRAM chip, be used for producing the sequential required for TFT Source drive IC group 3 and display, VCOM signal generating circuit is made up of 74HC74 chip and 74HC14 chip, it is according to the information of CPU, produce the waveform signal synchronous with display control circuit, for stn liquid crystal display backplane COM drive electrode.
Described TFT Source drive IC group 3 is made up of multiple TFT Source drive IC, the signal input part of TFT Source drive IC group 3 connects the signal output part of display control circuit, multiple TFT Source drive IC signal output parts in TFT Source drive IC group 3 are corresponding with the signal input part of the multiple pixel electrodes in stn liquid crystal display screen 1 to connect, produce drive waveforms according to the signal that display control circuit is sent, be applied to above display screen matrix electrode.
One end of a described FPC flexible circuit board 4 is bundled in above the glass of stn liquid crystal display screen, be connected on the pin of drive IC by the ITO above glass, the other end of the one FPC flexible circuit board 4 is welded on control circuit board 2, has been communicated with drive IC and control circuit board.
Contrast Fig. 2, the method of the linear array light valve utilizing stn liquid crystal display screen to make, comprise the steps: 1) control signal that RS232 interface on control circuit board 2 sends to computer related software, after the CPU process on control circuit board, send data to display control circuit;
2) display control circuit transmits control signal to TFT Source drive IC group 3;
3) TFT Source drive IC group 3 outputting drive voltage is to the linear array pixel electrode on stn liquid crystal display screen 1;
4) VCOM sending data after receiving CPU process produces circuit and exports COM electrode drive voltage to the COM drive electrode on stn liquid crystal display screen 1, torsion action is produced under being clipped in the voltage difference effect between two electrodes of stn liquid crystal between pixel electrode and COM drive electrode, the light through pixel is made to produce different transmitances, all pixels produce corresponding transmitance respectively under computer, thus produce linear array modulating action.
Note: computer is not in native system controls this system works.
Claims (1)
1. utilize the linear array light valve that stn liquid crystal display screen makes, it is characterized in that structure comprises stn liquid crystal display screen, control circuit board, TFT Source drive IC group, a FPC flexible circuit board, the 2nd FPC flexible circuit board, wherein TFT Source drive IC group is fastened on above the glass of stn liquid crystal display screen, and the COM drive electrode on stn liquid crystal display screen is connected on control circuit board by the 2nd FPC flexible circuit board; Described stn liquid crystal display screen comprises multiple pixel electrode, COM drive electrode, and wherein multiple pixel electrode receives multiple TFT Source drive IC signal, and COM drive electrode receives the signal that VCOM signal generating circuit produces; Working laser is modulated when passing through stn liquid crystal display screen; Display control circuit on described control circuit board connects computer, stn liquid crystal display screen and TFT Source drive IC group, and the information for transmitting according to computer related software produces corresponding drive singal; Described TFT Source drive IC group, above the glass being bundled in stn liquid crystal display screen, has corresponding cabling above glass; Described control circuit board comprises RS232 interface, CPU, display control circuit, VCOM signal generating circuit; Wherein the signal input/output end of RS232 interface is corresponding with the signal input/output terminal of CPU connects, first signal output part of CPU connects with the signal input part of VCOM signal generating circuit, the secondary signal output terminal of CPU connects with the signal input part of display control circuit, and the signal output part of VCOM signal generating circuit connects COM drive electrode; RS232 interface circuit adopts MAX232 interface chip, for the communication with extraneous computer, the signal produced by extraneous computer related software accepts, send CPU to, CPU adopts the LPC2214 IC of ARM7 kernel, it is the core controlling this system works, the work of the multiple functional blocks on cooperation control circuit board; Display control circuit adopts SID13506 Special colored display and control IC, periphery is connected to S41LV16100 SDRAM chip, be used for producing the sequential required for TFT Source drive IC group and display, VCOM signal generating circuit is made up of 74HC74 chip and 74HC14 chip, it is according to the information of CPU, produce the waveform signal synchronous with display control circuit, for stn liquid crystal display backplane COM drive electrode; Described TFT Source drive IC group is made up of multiple TFT Source drive IC, the signal input part of TFT Source drive IC group connects the signal output part of display control circuit, multiple TFT Source drive IC signal output parts in TFT Source drive IC group are corresponding with the signal input part of the multiple pixel electrodes in stn liquid crystal display screen to connect, produce drive waveforms according to the signal that display control circuit is sent, be applied to above display screen matrix electrode; One end of a described FPC flexible circuit board is bundled in above the glass of stn liquid crystal display screen, be connected on the pin of drive IC by the ITO above glass, the other end of the one FPC flexible circuit board is welded on control circuit board, has been communicated with drive IC and control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354153.7A CN102841465B (en) | 2012-09-21 | 2012-09-21 | Utilize the linear array light valve that stn liquid crystal display screen makes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354153.7A CN102841465B (en) | 2012-09-21 | 2012-09-21 | Utilize the linear array light valve that stn liquid crystal display screen makes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102841465A CN102841465A (en) | 2012-12-26 |
| CN102841465B true CN102841465B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210354153.7A Expired - Fee Related CN102841465B (en) | 2012-09-21 | 2012-09-21 | Utilize the linear array light valve that stn liquid crystal display screen makes |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719310A (en) * | 2005-05-19 | 2006-01-11 | 广辉电子股份有限公司 | Liquid crystal module |
| CN101675465A (en) * | 2007-07-18 | 2010-03-17 | 夏普株式会社 | Display device and its driving method |
| CN101894526A (en) * | 2009-05-19 | 2010-11-24 | 晨星软件研发(深圳)有限公司 | Driver on liquid crystal display panel and related control method |
| CN202771130U (en) * | 2012-09-21 | 2013-03-06 | 南京华日液晶显示技术有限公司 | Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100806906B1 (en) * | 2001-09-25 | 2008-02-22 | 삼성전자주식회사 | Liquid crystal display and driving apparatus and method thereof |
-
2012
- 2012-09-21 CN CN201210354153.7A patent/CN102841465B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719310A (en) * | 2005-05-19 | 2006-01-11 | 广辉电子股份有限公司 | Liquid crystal module |
| CN101675465A (en) * | 2007-07-18 | 2010-03-17 | 夏普株式会社 | Display device and its driving method |
| CN101894526A (en) * | 2009-05-19 | 2010-11-24 | 晨星软件研发(深圳)有限公司 | Driver on liquid crystal display panel and related control method |
| CN202771130U (en) * | 2012-09-21 | 2013-03-06 | 南京华日液晶显示技术有限公司 | Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display |
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| Publication number | Publication date |
|---|---|
| CN102841465A (en) | 2012-12-26 |
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Effective date of registration: 20210225 Address after: 210046 No.601 Xianlin Avenue, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee after: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Address before: No.19 Hengtong Avenue, Nanjing Economic Development Zone, Jiangsu 210038 Patentee before: NANJING HWUARY LIQUID CRYSTAL DISPLAY TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20150916 Termination date: 20210921 |
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