CN208224658U - A kind of LCD space light modulator - Google Patents
A kind of LCD space light modulator Download PDFInfo
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- CN208224658U CN208224658U CN201820908304.1U CN201820908304U CN208224658U CN 208224658 U CN208224658 U CN 208224658U CN 201820908304 U CN201820908304 U CN 201820908304U CN 208224658 U CN208224658 U CN 208224658U
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- crystal display
- clock generator
- driving
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 6
- 101150060043 MCK1 gene Proteins 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004988 Nematic liquid crystal Substances 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a kind of LCD space light modulators, including liquid crystal display and driving circuit, liquid crystal display is using twisted nematic liquid crystal as material, driving circuit includes driving IC, signal processing IC, clock generator, singlechip controller and phaselocked loop, singlechip controller provides register setting, signal processing IC provides signal for driving IC and receives external R signal, IC is driven to provide signal to liquid crystal display, clock generator is to signal processing IC, liquid crystal display provides signal, locking phase circumferential direction clock generator, driving IC provides signal and receives external field sync signal and line synchronising signal.The utility model overall structure is simple and compact, and voltage range (0~3.5V) needed for can get realizes phase-only modulation under the premise of guaranteeing liquid crystal display display effect.
Description
Technical field
The utility model relates to liquid crystal device technical field more particularly to a kind of LCD space light modulators.
Background technique
Spatial light modulator is the element that the optical field distribution of a kind of pair of light wave is modulated, and is widely used at optical information
Many application fields such as reason, optical beam transformation, output display.Simple, price is low, consumption to make for LCD space light modulator (SLM)
It the advantages that two-dimensional device capable of low, easy to control, being easily made and easily constituting parallel optical information processing device, is learned by domestic and international research
The concern of person.LCD space light modulator is also known as optical shutter array (OSAs), it is using liquid crystal layer as light modulating materials, liquid crystal
Layer uses the mixing field-effect operating mode of nematic crystal, and each region applies different electric fields on crystal layer, can cause liquid
The variation in brilliant molecules align direction and position realizes the modulation to optical signal so as to cause the variation of its optical property.With distortion
Nematic liquid crystal is the LCD space light modulator of material, and liquid crystal contains phase change and Strength Changes to the modulation of light itself,
And phase-only modulation or intensity is needed only to change in some a small range in some applications, general driving circuit is in order to protect
Liquid crystal display display effect is demonstrate,proved, deliberately voltage can be limited within the scope of some, thus just affect phase-modulation ability.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of LCD space light modulator, to solve in the prior art
Deficiency.
In order to achieve the above object, the purpose of this utility model is achieved through the following technical solutions:
A kind of LCD space light modulator is provided, wherein including liquid crystal display and driving circuit, the liquid crystal display with distort to
Column liquid crystal is material, and driving circuit includes driving IC, signal processing IC, clock generator, singlechip controller and phaselocked loop, institute
It states singlechip controller and provides register setting for the signal processing IC, the clock generator and the phaselocked loop, it is described
Signal processing IC provides signal for the driving IC and receives external R signal, and the driving IC provides signal to the liquid crystal display,
The clock generator provides signal to the signal processing IC, the liquid crystal display, the circumferential clock generator of the locking phase,
The driving IC provides signal and simultaneously receives external field sync signal and line synchronising signal, and the clock generator is at the signal
It manages IC and CLP and PRG signal is provided, the clock generator provides HST, HCK, VST, VCK, PCG and ENB letter to the liquid crystal display
Number, the circumferential clock generator of the locking phase provides MCK1 signal, and the locking phase the circumferential driving IC provide FRP and S/H
Control signal.
Above-mentioned LCD space light modulator, wherein the liquid crystal display uses LCX026.
Above-mentioned LCD space light modulator, wherein the driving IC uses CXA2112R.
Above-mentioned LCD space light modulator, wherein the signal processing IC uses CXA2111R.
Above-mentioned LCD space light modulator, wherein the clock generator uses CXD3500R.
Above-mentioned LCD space light modulator, wherein the phaselocked loop uses CXA3106IQ.
Above-mentioned LCD space light modulator, wherein the singlechip controller uses AT89S52.
Above-mentioned LCD space light modulator, wherein the driving circuit uses doubling plate.
Compared with the prior art, the utility model has the beneficial effects that:
Overall structure is simple and compact, voltage range (0~3.5V) needed for can get, before guaranteeing liquid crystal display display effect
Putting realizes phase-only modulation.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 shows the structural schematic block diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
Refering to what is shown in Fig. 1, the utility model LCD space light modulator includes liquid crystal display 1 and driving circuit, liquid crystal display 1 with
Twisted nematic liquid crystal is material, driving circuit include driving IC2, signal processing IC 3, clock generator 4, singlechip controller and
Phaselocked loop 5, singlechip controller are that signal processing IC 3, clock generator 4 and phaselocked loop 5 provide register setting, signal processing
IC3 provides signal for driving IC2 and receives external R signal (can be provided by video card), and driving IC2 provides signal to liquid crystal display 1, when
Clock generator 4 provides signal to signal processing IC 3, liquid crystal display 1, and phaselocked loop 5 provides signal simultaneously to clock generator 4, driving IC2
External field sync signal and line synchronising signal are received, clock generator 4 provides CLP and PRG signal, clock to signal processing IC 3
Generator 4 provides HST, HCK, VST, VCK, PCG and ENB signal to liquid crystal display 1, and phaselocked loop 5 provides MCK1 to clock generator 4
Signal, phaselocked loop 5 provide FRP and S/H to driving IC2 and control signal.In the technical program, liquid crystal display 1 uses LCX026, pixel
Points 485000, diagonal line 2.3cm can support SVGA, VGA, PC98 mode to show, can support at NTSC and PAL double-speed
Manage vision signal, transmitance 18%.IC2 is driven to use CXA2112R, there are reversal amplifier, signal multiplexer, clock hair in inside
Raw device and output signal buffer.Signal processing IC 3 uses CXA2111R, there is the function such as Gamma correction, gain control, bigoted control
Energy.Clock generator 4 use CXD3500R, built-in serial port circuit, support VGA, SVGA, XGA and SXGA show, operating mode by
Register setting determines.Phaselocked loop 5 uses CXA3106IQ.Singlechip controller uses AT89S52, has a 256 byte RAM, and 2
In addition a data pointer transmits data to 3 IC before respectively for 8 I/O mouthfuls wherein 4 I/O mouthfuls are used as ISP downloader.It drives
Dynamic circuit uses doubling plate, mostly uses surface mount elements, and provide power supply for drive circuit board is that ± 15V, ± 5V four-way switch are electric
Source, an additional ground potential, analog signal ground potential and digital signal ground current potential in circuit board are cablings respectively, are only existed
Connect power supply when be connected together, so can reduce simulation and digitally between common impedance, with reduce to analog signal
Interference.
From above-described embodiment as can be seen that the advantage of the utility model is:
Overall structure is simple and compact, voltage range (0~3.5V) needed for can get, before guaranteeing liquid crystal display display effect
Putting realizes phase-only modulation.
Specific embodiment of the utility model is described in detail above, but the utility model be not restricted to it is above
The specific embodiment of description, it is merely an example.To those skilled in the art, any equivalent modifications and substitution be also all
Among the scope of the utility model.Therefore, equal transformation made under the spirit and scope for not departing from the utility model
And modification, should all it cover in the scope of the utility model.
Claims (8)
1. a kind of LCD space light modulator, which is characterized in that including liquid crystal display and driving circuit, the liquid crystal display with distort to
Column liquid crystal is material, and driving circuit includes driving IC, signal processing IC, clock generator, singlechip controller and phaselocked loop, institute
It states singlechip controller and provides register setting for the signal processing IC, the clock generator and the phaselocked loop, it is described
Signal processing IC provides signal for the driving IC and receives external R signal, and the driving IC provides signal to the liquid crystal display,
The clock generator provides signal to the signal processing IC, the liquid crystal display, the circumferential clock generator of the locking phase,
The driving IC provides signal and simultaneously receives external field sync signal and line synchronising signal, and the clock generator is at the signal
It manages IC and CLP and PRG signal is provided, the clock generator provides HST, HCK, VST, VCK, PCG and ENB letter to the liquid crystal display
Number, the circumferential clock generator of the locking phase provides MCK1 signal, and the locking phase the circumferential driving IC provide FRP and S/H
Control signal.
2. LCD space light modulator as described in claim 1, which is characterized in that the liquid crystal display uses LCX026.
3. LCD space light modulator as described in claim 1, which is characterized in that the driving IC uses CXA2112R.
4. LCD space light modulator as described in claim 1, which is characterized in that the signal processing IC uses CXA2111R.
5. LCD space light modulator as described in claim 1, which is characterized in that the clock generator uses CXD3500R.
6. LCD space light modulator as described in claim 1, which is characterized in that the phaselocked loop uses CXA3106IQ.
7. LCD space light modulator as described in claim 1, which is characterized in that the singlechip controller uses AT89S52.
8. LCD space light modulator as described in claim 1, which is characterized in that the driving circuit uses doubling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820908304.1U CN208224658U (en) | 2018-06-12 | 2018-06-12 | A kind of LCD space light modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820908304.1U CN208224658U (en) | 2018-06-12 | 2018-06-12 | A kind of LCD space light modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208224658U true CN208224658U (en) | 2018-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820908304.1U Active CN208224658U (en) | 2018-06-12 | 2018-06-12 | A kind of LCD space light modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208224658U (en) |
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2018
- 2018-06-12 CN CN201820908304.1U patent/CN208224658U/en active Active
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