CN202771130U - Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display - Google Patents
Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display Download PDFInfo
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- CN202771130U CN202771130U CN 201220484902 CN201220484902U CN202771130U CN 202771130 U CN202771130 U CN 202771130U CN 201220484902 CN201220484902 CN 201220484902 CN 201220484902 U CN201220484902 U CN 201220484902U CN 202771130 U CN202771130 U CN 202771130U
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- crystal display
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Abstract
The utility model discloses a linear array light valve manufactured by utilizing a super twisted nematic (STN) liquid crystal display screen. The structure comprises the STN liquid crystal display screen, a control circuit board, a TFT Source driving integrated circuit (IC) group, a first flexible printed circuit (FPC) board and a second FPC board, wherein the TFT Source driving IC group is fixedly connected on the upper face of a glass of the STN liquid crystal display screen. A component object model (COM) driving electrode on the STN liquid crystal display screen is connected with the control circuit board through the second FPC board. The TFT Source driving IC group is connected to the control circuit board through the first FPC board. The linear array light valve manufactured by utilizing the STN liquid crystal display screen has the advantages that a TFT Source controls IC and a self-designed visual computer (V com) voltage produced circuit is utilized to drive the STN liquid crystal display screen. A TFT display screen or a special driving IC are not needed for die sinking, and therefore cost and period are saved, and technical requirements of the linear array light valve are met.
Description
Technical field
The utility model relates to a kind of laser linear array light valve that utilizes the stn liquid crystal display screen to make, belong to the technical field of liquid crystal display.
Background technology
In high power laser system, in order to reduce self-focusing effect, improve the gain inequality of system safety operation flux and compensation main amplifier, need to carry out spacing shaping to injecting laser beam, to the lower super-Gaussian flat top beam of output beam modulation near field degree.The conventional laser apparatus for shaping adopts MASK spacing shaping device, makes complicated, machinery and adjusts the shortcomings such as difficulty, applicable dirigibility are low but exist.In order to overcome the shortcoming of MASK mode, begin to adopt the LCDs part to be used for the laser spacing shaping.Be applied to the linear array light valve of one dimension shaping because of resolution special (950X1), gray scale calling hierarchy high (64 grades) does not have suitable general liquid crystal device to mate.And TFT LCDs die sinking expense is high, fabrication cycle is long, can not satisfy flexibly service condition.
Summary of the invention
The utility model proposes a kind of laser linear array light valve that utilizes stn liquid crystal display screen spare to make, its purpose aims to provide the laser spacing shaping scheme of low-cost and high-performance.The stn liquid crystal display screen of employing TFT LCDs SOURCE drive IC can satisfy technology and the cost requirement of laser linear array light valve needs preferably.
Technical solution of the present utility model: 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 the stn liquid crystal display screen is connected on the control circuit board by the 2nd FPC flexible circuit board, and TFT Source drive IC group is connected on the control circuit board by a FPC flexible circuit board.
Advantage of the present utility model: utilize TFT source control IC and self-designed com voltage generation circuit to drive the stn liquid crystal display screen, without TFT or special drive IC die sinking, both saved expense and cycle, satisfied again the technical requirement of linear array light valve.
Description of drawings
Accompanying drawing 2 is the electrical schematic diagrams that utilize the laser linear array light valve of stn liquid crystal display screen spare making.
Among the figure 1 is stn liquid crystal display screen, the 2nd, control circuit board, the 3rd, and TFT Source drive IC group, 4 is that a FPC flexible circuit board, 5 is the 2nd FPC flexible circuit board.
Embodiment
Described stn liquid crystal display screen 1 comprises a plurality of pixel electrodes, COM drive electrode, and wherein a plurality of pixel electrodes receive a plurality of TFT Source drive IC signals, and the COM drive electrode receives the signal that the VCOM signal generating circuit produces; Be the operative body part of linear array light valve, work laser is modulated by stn liquid crystal display screen 1 time.
Display control circuit on the described control circuit board 2 connects computer, stn liquid crystal display screen 1 and TFT Source drive IC group 3, and the information that is used for transmitting according to the computer related software produces the corresponding signal that drives.
Described TFT Source drive IC group 3 is bundled in above the glass of stn liquid crystal display screen 1, and corresponding cabling is arranged above the glass.
Comprise RS232 interface, CPU, display control circuit on the described control circuit board 2, the VCOM signal generating circuit; Corresponding joining of signal I/O end of the signal output/input end of RS232 interface and CPU wherein, the first signal output terminal of CPU and the signal input part of VCOM signal generating circuit join, the secondary signal output terminal of CPU and the signal input part of display control circuit join, and the signal output part of VCOM signal generating circuit connects the COM drive electrode; The RS232 interface circuit adopts the MAX232 interface chip, be used for the communication with extraneous computer, the signal that extraneous computer related software produces is accepted, send CPU to, CPU adopts the LPC2214 IC of ARM7 kernel, it is the core of this system works of control, coordinates the work of a plurality of functional blocks on the control circuit board; Display control circuit adopts the SID13506 Special colored to show control IC, the periphery has connected S41LV16100 SDRAM chip, be used for producing TFT Source drive IC group 3 needed sequential and displays, the VCOM signal generating circuit is comprised of 74HC74 chip and 74HC14 chip, it is according to the information of CPU, produce the waveform signal synchronous with display control circuit, be used for stn liquid crystal display backplane COM drive electrode.
Described TFT Source drive IC group 3 is comprised of a plurality of TFT Source drive IC, the signal input part of TFT Source drive IC group 3 connects the signal output part of display control circuit, corresponding the joining of signal input part of a plurality of pixel electrodes in a plurality of TFT Source drive IC signal output parts in the TFT Source drive IC group 3 and the stn liquid crystal display screen 1, the signal of sending according to display control circuit produces drive waveforms, is applied to above the 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 to by the ITO above the glass on the pin of drive IC, the other end of the one FPC flexible circuit board 4 is welded on the control circuit board 2, has been communicated with drive IC and control circuit board.
Contrast Fig. 2, utilize the method for the linear array light valve of stn liquid crystal display screen making, comprising the steps: 1) RS232 interface on the control circuit board 2 receives the control signal that the computer related software sends, and sends data to display control circuit after processing through the CPU on the control circuit board;
2) display control circuit transmits control signal to TFT Source drive IC group 3;
3) TFT Source drive IC group 3 outputting drive voltages are to the linear array pixel electrode on the stn liquid crystal display screen 1;
4) receive the VCOM that sends data after CPU processes and produce circuit output COM electrode drive voltage to the COM drive electrode on the stn liquid crystal display screen 1, the stn liquid crystal that is clipped between pixel electrode and the COM drive electrode produces torsion action under the voltage difference effect between two electrodes, make the light that sees through pixel produce different transmitances, all pixels produce corresponding transmitance respectively under computer control, thereby produce the linear array modulating action.
Annotate: computer is not in the native system, is to control this system works.
Claims (6)
1. the linear array light valve that utilizes the stn liquid crystal display screen to make, 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 the stn liquid crystal display screen connects control circuit board by the 2nd FPC flexible circuit board, and TFT Source drive IC group connects control circuit board by a FPC flexible circuit board.
2. the linear array light valve that utilizes the stn liquid crystal display screen to make according to claim 1 is characterized in that the display control circuit on the described control circuit board connects computer, stn liquid crystal display screen and TFT Source drive IC group.
3. the linear array light valve that utilizes the stn liquid crystal display screen to make according to claim 1 is characterized in that on glass at the stn liquid crystal display screen of described TFT Source drive IC group binding.
4. the linear array light valve that utilizes the stn liquid crystal display screen to make according to claim 1 is characterized in that comprising on the described control circuit board RS232 interface, CPU, display control circuit, VCOM signal generating circuit; Corresponding joining of signal I/O end of the signal output/input end of RS232 interface and CPU wherein, the first signal output terminal of CPU and the signal input part of VCOM signal generating circuit join, the secondary signal output terminal of CPU and the signal input part of display control circuit join, and the signal output part of VCOM signal generating circuit connects the COM drive electrode.
5. the linear array light valve that utilizes the stn liquid crystal display screen to make according to claim 1, it is characterized in that described TFT Source drive IC group is comprised of a plurality of TFT Source drive IC, the signal input part of TFT Source drive IC group connects the signal output part of display control circuit, corresponding the joining of signal input part of a plurality of pixel electrodes in a plurality of TFT Source drive IC signal output parts in the TFT Source drive IC group and the stn liquid crystal display screen.
6. the linear array light valve that utilizes the stn liquid crystal display screen to make according to claim 1, an end that it is characterized in that a described FPC flexible circuit board is bundled in the on glass of stn liquid crystal display screen, and the other end of a FPC flexible circuit board is welded on the control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220484902 CN202771130U (en) | 2012-09-21 | 2012-09-21 | Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220484902 CN202771130U (en) | 2012-09-21 | 2012-09-21 | Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771130U true CN202771130U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220484902 Expired - Fee Related CN202771130U (en) | 2012-09-21 | 2012-09-21 | Linear array light valve manufactured by utilizing super twisted nematic (STN) liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841465A (en) * | 2012-09-21 | 2012-12-26 | 南京华日液晶显示技术有限公司 | Linear array light valve manufactured by STN (super twisted nematic) LCD (liquid crystal display) |
-
2012
- 2012-09-21 CN CN 201220484902 patent/CN202771130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841465A (en) * | 2012-09-21 | 2012-12-26 | 南京华日液晶显示技术有限公司 | Linear array light valve manufactured by STN (super twisted nematic) LCD (liquid crystal display) |
| CN102841465B (en) * | 2012-09-21 | 2015-09-16 | 南京华日液晶显示技术有限公司 | Utilize the linear array light valve that stn liquid crystal display screen makes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING HUARI TOUCH SCREEN DISPLAY TECHNOLOGY CO., Free format text: FORMER OWNER: NANJING HWUARY LIQUID CRYSTAL DISPLAY TECHNICAL CO., LTD. Effective date: 20140421 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140421 Address after: No. 19 Hengtong road 210038 in Jiangsu province Nanjing City Economic Development Zone Patentee after: NANJING HUARI TOUCH CONTROL DISPLAY SCIENCE & TECHNOLOGY CO.,LTD. Address before: No. 19 Hengtong road 210038 in Jiangsu province Nanjing City Economic Development Zone Patentee before: Nanjing Hwuary Liquid Crystal Display Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210317 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 HUARI TOUCH CONTROL DISPLAY SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |