CN1278695A - Electro-optical imaging method and large-screen projecting display - Google Patents

Electro-optical imaging method and large-screen projecting display Download PDF

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CN1278695A
CN1278695A CN 99108551 CN99108551A CN1278695A CN 1278695 A CN1278695 A CN 1278695A CN 99108551 CN99108551 CN 99108551 CN 99108551 A CN99108551 A CN 99108551A CN 1278695 A CN1278695 A CN 1278695A
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light valve
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pixel
synthesizer
row
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CN1159926C (en
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谭善光
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Zhejiang University ZJU
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谭善光
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Abstract

The present invention discloses a group of electro-optic imaging methods and large-screen projected display equipment. It is characterized by that it uses point control type or line control type or general type combined light valve, image dissection and synthesis device, projection optical system and control circuit to produce projected image. It possesses the advantages of high cost, etc.. Said invention adopts complete digital control mode, and the line picture element and column picture element of projected image can be up to several thousands. Said invention can be used in large-screen projection TV, large-screen projection display and other large-screen projection displaying equipments.

Description

Electrooptical imaging method and large screen projection display unit
The present invention relates to the image display technology field.
Optical projection Display Technique in the existing image display technology mainly can be divided into: picture tube Projection Display, laser display, light valve show and micro mirror shows four kinds.In light valve showed, liquid crystal light valve showed it is technology more representative and that use is more." large screen television and shadow casting technique " that " the lcd-tv development trend " and " radio and TV " that 1998 the 3rd periodicals of " large-screen lc projection TV ", " TV tech " that the Electronic Industry Press published in 1991, " principle of LCD TV-liquid crystal display and application ", " TV tech " of [day] gold English two works o. 11th in 1991 publishes carry the 3rd periodical in 1998 carries introduced four kinds of large screen projection lcd technologies: (1) utilizes electron beam scanning, and image is write liquid crystal device.The subject matter of this method is that the working life of available liquid crystal under higher direct voltage is too short.(2) utilize the thermal effect of liquid crystal, adopt the technology of laser addressed mode.This technology laser beam heats liquid crystal pixel utilizes the state of cooling that is added in the voltage control liquid crystal pixel on the liquid crystal pixel.Thereby, image is write liquid crystal device.The subject matter of this kind technology is: owing to utilize the thermal effect of liquid crystal, the time that piece image is write the liquid crystal light valve device is longer; On the other hand, need laser aid and a servomechanism that is used for the precision of laser beam flying to micron dimension.(3) utilize photoelectric effect, adopt the technology of light addressing system.This technology prepares a photoconductive layer at the back side of liquid crystal light valve device, and the liquid crystal light valve device is fixed on the surface of CRT with optical fiber.Image beam on the CRT screen projects on the photoconductive layer, owing to photoelectric effect produces voltage.This voltage writes liquid crystal device with image.The subject matter of this kind technology is: need to change the signal of telecommunication into light signal by CRT earlier, then, change light signal into analog electrical signal by photoelectric effect, by analog electrical signal image is write liquid crystal device again; On the other hand, need the CRT device, thereby make projection display equipment comparatively complicated.(4) utilize the transistor switch matrix-scanning, image is write the single chip liquid crystal device.At present, the subject matter of this method is: because the difficulty on making, the single chip liquid crystal light valve pixel is counted and is restricted, and is difficult for making the high single chip liquid crystal device of rate respectively, and rate of finished products is low, the manufacturing cost height, and optical loss is big, utilance is low.
Task of the present invention provides to be had high brightness, high rate and high image quality and low manufacturing cost respectively, adopts the electrooptical imaging technology of Direct Digital formula control mode completely and based on the large screen projection colour display device of this electrooptical imaging technology.
For above-mentioned electrooptical imaging technology is provided, the solution that electrooptical imaging method of the present invention adopts is:
Form the combination light valve by one group of sub-light valve, pixel is distributed on each light valve; The picture element matrix of each light valve is the submatrix of image pixel matrix; Regulate the transmitted light or the intensity of reflected light of each pixel by control circuit; Form A type picture breakdown synthesizer by stripe-shaped half reflection and half transmission mirror (be called for short stripe-shaped half anti-mirror) or other half reflection and half transmission mirror (being called for short half anti-mirror) and speculum or right angled isosceles triangle prism (abbreviation right-angle prism); Or form Type B picture breakdown synthesizer by one group of speculum or right-angle prism or stripe-shaped half anti-mirror; The outgoing beam of pixel by the picture breakdown synthesizer, synthesizes image beam on the combination light valve.
Sub-light valve can be divided into transmission-type or optical valve in reflection type by light beam incident and outgoing form.Sub-light valve is divided into three types by control mode.First kind can be described as point control type light valve, second kind can be described as capable control type light valve, the third can be described as the plain edition light valve, it is the light valve of other form, utilize the single chip liquid crystal light valve of transistor switch matrix (TFT) scanning in aforesaid the 4th kind of lcd technology, the various monocrystalline silicon that various liquid crystal projector adopted on the market, amorphous silicon or polysilicon single chip liquid crystal light valve, or the common light valve of other form.Distribution mode according to pixels, point control type light valve can be divided into point control A type light valve and point control Type B light valve again, and row control type light valve can be divided into row control A type light valve and row control Type B light valve again.
On the point control A type light valve, divide wide row and column, press row and column or press duplicate rows and biserial interval laying out pixel and pixel control circuit.Point control A type light valve adopts the transistor switch addressing, arranges scan electrode bus and signal electrode bus respectively at non-pixel column and non-pixel column, and corresponding each pixel is arranged transistor switching circuit.To reflective point control A type light valve, can be at front, light valve pixel district laying out pixel control circuit, also can be at the back side, light valve pixel district laying out pixel control circuit.Can form a point control A type or Type B combination light valve by three, four or a plurality of point control A type light valve.
On the row control A type light valve, divide wide row and column, press row or press the duplicate rows capable and capable pixel control circuit of laying out pixel at interval.Row control A type light valve adopts the transistor switch addressing, arranges row pixel control circuit at non-pixel column, and corresponding each pixel is arranged transistor switching circuit.To reflective row control A type light valve, can arrange row pixel control circuit in front, light valve pixel district, also can arrange row pixel control circuit at the back side, light valve pixel district.Can form a row control A type or Type B combination light valve by two or more row control A type light valves.
On the reflective point control Type B light valve, divide wide row and column, each provisional capital is a pixel column, and each row all is a pixel column.At the back side, light valve pixel district, arrange scan electrode bus and signal electrode bus respectively by row or column, corresponding each pixel is arranged transistor switching circuit.Can form a reflective point control Type B combination light valve by three, four or a plurality of reflective point control Type B light valve.
On the reflective row control Type B light valve, divide wide row and column, each provisional capital is a pixel column, and each row all is a pixel column.At the back side, light valve pixel district, be arranged in a row capable pixel control circuit, corresponding each pixel is arranged transistor switching circuit.Can form a reflective row control Type B combination light valve by two or more reflective row control Type B light valves.
Can be that other form light valve is formed a common A type or Type B combination light valve also by two or more plain edition light valves.
The picture breakdown synthesizer can be divided into A type, Type B and comprehensive three types.
A type picture breakdown synthesizer is made up of stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission mirror and speculum or right-angle prism.Stripe-shaped half reflection and half transmission mirror is divided into two types on the flat mirror of stripe-shaped half reflection and half transmission and stripe-shaped half reflection and half transmission prism.Also stripe-shaped half reflection and half transmission prism and right-angle prism an integral body be can be made, A type picture breakdown and synthetic prisms formed.
The flat mirror of stripe-shaped half reflection and half transmission, be on transparent base (as colouless optical glass or transparent plastic), corresponding to the size and the arrangement form of pixel on the light valve, at interval by row or column, perhaps press duplicate rows or biserial at interval, make streak reflex minute surface with high reflectance.In order to improve the light transmission features of the flat mirror of stripe-shaped half reflection and half transmission, make parallel incident beam perpendicular to the transparent base surface, can make the flat mirror of ladder stripe-shaped half reflection and half transmission.Perhaps a part of light beam of piece image light beam reflects from the streak reflex minute surface, and another part light beam is directly transmission from the transparent base between the streak reflex minute surface, is decomposed into two width of cloth subimage light beams.Perhaps a width of cloth subimage light beam reflects from the streak reflex minute surface, and another width of cloth subimage light beam is directly transmission from the transparent base between the streak reflex minute surface, and the two synthesizes the piece image light beam.
Stripe-shaped half reflection and half transmission prism, be on 45 ° of inclined-planes of right angled isosceles triangle prism (abbreviation right-angle prism), size and arrangement form corresponding to pixel on the light valve, by row or column at interval, perhaps press duplicate rows or biserial at interval, make the ladder striped at interval, or form by many little right-angle prisms and microplate lens.Perhaps a part of light beam of piece image light beam directly transmission from the ladder striped of right-angle prism, another part light beam reflects from the interfringe 45 ° of inclined-planes of the ladder of right-angle prism, is decomposed into two width of cloth subimage light beams.A perhaps width of cloth subimage light beam directly transmission from the ladder striped of right-angle prism, another width of cloth subimage light beam reflects from the interfringe 45 ° of inclined-planes of the ladder of right-angle prism, and the two synthesizes the piece image light beam.
Type B picture breakdown synthesizer is made up of one group of speculum or right-angle prism or stripe-shaped half anti-mirror.Right-angle prism group or stripe-shaped half reflection and half transmission prism group an integral body be can be made, Type B picture breakdown and synthetic prisms formed.Perhaps the piece image light beam is decomposed into one group of subimage light beam by this group speculum or right-angle prism or stripe-shaped half anti-mirroring.Perhaps one group of subimage light beam synthesizes the piece image light beam by this group speculum or right-angle prism or stripe-shaped half anti-mirroring.
Press the exit direction of collimated light beam and the position relation of incident direction, the A type can be divided into vertical A type and parallel A type and vertical Type B and parallel Type B picture breakdown synthesizer again with Type B picture breakdown synthesizer.
Comprehensive picture breakdown synthesizer is made up of A type and Type B picture breakdown synthesizer.
For realizing aforementioned large screen projection colour display device, the solution that projection display equipment of the present invention adopts is: adopt above-mentioned electrooptical imaging method; Based on combination light valve and picture breakdown synthesizer, constitute monochrome or colour projection's optical system.
Projection display equipment is divided into two types of transmission-type projection display equipment and reflection type projection display unit by projection pattern.
In transmission-type colour projection optical system, make up three kinds of homogeneous beams of red, green, blue that light valves are controlled transmission respectively by three transmission-types, through corresponding picture breakdown synthesizer, synthesize monochrome image respectively.And, three monochrome images are synthesized coloured image by speculum and two dichroic mirror.Then, projection lens system projects to image beam on the large-screen.
In the reflection type color projection optical system, control three kinds of homogeneous beams of red, green, blue of reflection respectively by three reflective combination light valves, by corresponding picture breakdown synthesizer and reflected light path,, synthesize coloured image with these three kinds of homogeneous beams.Then, projection lens system projects to image beam on the large-screen.
In another kind of transmission-type colour projection optical system, control three kinds of homogeneous beams of red, green, blue of transmission respectively by three of transmission-type combination light valve or three groups of sub-light valves, be generated as monochrome image, by corresponding picture breakdown synthesizer, with three monochrome images of red, green, blue, synthesize coloured image.Then, projection lens system projects to image beam on the large-screen.
In another kind of reflection type color projection optical system, control three kinds of homogeneous beams of red, green, blue of reflection respectively by three of a reflective combination light valve or three groups of sub-light valves, be generated as monochrome image, by corresponding picture breakdown synthesizer, with three monochrome images of red, green, blue, synthesize coloured image.Then, projection lens system projects to image beam on the large-screen.
The present invention has some following major advantages:
1. improve projected image brightness and improve picture quality.For the common liquid crystals light valve, its standard openings rate is generally 35～
40%, each pixel area occupied is except the liquid crystal area of transmitted light, also must comprise the laying out pixel control circuit
Area, even for the common liquid crystals light valve with big aperture opening ratio, the pixel effective area can only reach at most on the light valve
To 70%, not only diminish brightness, and make that tangible interval is arranged between image pixel and the pixel.And employing A type
During the combination light valve, on composograph, each shared zone of pixel control circuit on the corresponding light valve is by other light
Pixel on the valve is filled, thereby the pixel effective area of composograph reaches 100%, and image pixel and pixel
Between do not exist at interval, not only brightness improves greatly, and has improved picture quality.
2. light source power utilance height, thermal loss is little, helps improving liquid crystal light valve device useful life.For common liquid crystals
Light valve, its aperture opening ratio in order to protect the TFT circuit, are specially made black matrix, to avoid incident usually less than 50%
Illumination is mapped on the TFT circuit.Therefore, the light source power utilance is low, and loss is big.And adopt A type combination light valve and
The A type picture breakdown synthesizer of forming by stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism, in the future
Parallel incident beam from illumination optically focused colour filter beam splitting system is decomposed into corresponding subimage light beam, projects combined light
On each of valve light valve, only make on each sub-light valve that there is incident beam at the transparency electrode place in each pixel correspondence, its
Surplus non-pixel cell or each pixel TFT circuit part do not have incident beam.Thereby thermal loss is little, can be effectively
Protection TFT circuit improves liquid crystal light valve device useful life, can make full use of light source power again.
3. can generate the high image of rate respectively.According to existing technology and manufacturing technology level, point control type or row control type light
The elemental area of valve can be accomplished very little.If the area of each pixel is 100 square microns, a viewing area area
The point control A type that is 16 square centimeters makes up the image that light valve just can generate 2000 * 2000 pixels.Its
In, the viewing area area of each point control A type light valve is 4 square centimeters.As improve manufacturing technology level, increase
The viewing area area of point control type or row control type combination light valve or reduce single elemental area, then display image
It is higher that pixel number can reach.On the other hand, certain at the area of the number of pixels of single light valve and single pixel
The time, adopt combination light valve with a plurality of sub-light valves, promptly adopt comprehensive in conjunction with A type and Type B picture breakdown synthesizer
Mould assembly picture breakdown synthesizer composograph also can generate the high image of rate respectively.
4. projectable's large-screen image.According to different needs, adopt multiple unit combination light valve and comprehensive picture breakdown synthesizer
Part can design the jumbotron projection display equipment.
5. simple in structure, be convenient to make low cost of manufacture, rate of finished products height.At first, owing to adopt combination light valve, image slices
Vegetarian refreshments is distributed on each unit light valve, has reduced the pixel number of single light valve, thereby, reduced single light valve
Manufacture difficulty, improved rate of finished products, for example, for image with 1280 * 1024 pixels, available 4
Individual point control A type light valve, each light valve only has 640 * 512 pixels, and the form with 2 * 2 constitutes point control
A type combination light valve; For image, can adopt 16 point control A type light with 2048 * 2048 pixels
Valve, each light valve also only have 512 * 512 pixels, and the form with 4 * 4 constitutes point control A type combination light valve,
In conjunction with adopting A type and Type B picture breakdown synthesizer, synthetic height is the rate image respectively.Secondly, A type picture breakdown
Synthesizer is only by stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission mirror and speculum or right-angle prism
Form, Type B picture breakdown synthesizer only is made up of one group of speculum or right-angle prism or stripe-shaped half anti-mirror, ties
Structure is simple, and is easy to manufacture.Other height large screen projection technology of rate respectively be need not look like, CRT, phototube needed to adopt
Part or laser aid.The 3rd, control respectively by three of light valve or three groups sub-light valves of a combination incident red,
In colour projection's optical system of green, blue three kinds of homogeneous beams, do not need to adopt the dichroic mirror that is difficult for manufacturing,
Directly,, synthesize coloured image with three monochrome images of red, green, blue by corresponding picture breakdown synthesizer.
Thereby, reduced manufacture difficulty and cost, and can improve projected image brightness and improve picture quality.
6. parallel mode scanning element.At first, when adopting the combination light valve, because each sub-light valve control circuit does not have each other
Direct coupling is arranged, can adopt parallel mode, scan the pixel of each sub-light valve simultaneously.Secondly, adopt row control
During the type light valve,, can adopt parallel mode because each row pixel control circuit does not have direct coupling each other, with
Time scanning multirow pixel.Therefore, both can increase the occupation efficiency of pixel, and improve projected image brightness, the scanning element that can increase in the unit interval is counted again, counts thereby can increase projected pixel, further improves rate respectively.
The present invention can realize colour projection's image of large-screen, high brightness, high rate respectively and high image quality, can be used for large-screen television projector, large screen projection display and other large screen projection display unit.
The present invention is described in further detail below in conjunction with drawings and Examples.
First embodiment of electrooptical imaging method of the present invention is point control A type combination light valve imaging optical system.Fig. 1 is a point control A type combination light valve pixel distribution matrix; Fig. 2 is a point control A type light valve structure schematic diagram; Fig. 3 is the flat mirror intention of plane stripe-shaped half reflection and half transmission; Fig. 4 is the flat mirror intention of ladder stripe-shaped half reflection and half transmission; Fig. 5 is an A type ladder stripe-shaped half reflection and half transmission prism; Fig. 6 is a Type B ladder stripe-shaped half reflection and half transmission prism; Fig. 7 is vertical A type picture breakdown synthesizer schematic diagram; Fig. 8 is parallel A type picture breakdown synthesizer schematic diagram; Fig. 9 is picture breakdown of vertical A type and synthetic prisms schematic diagram; Figure 10 is picture breakdown of parallel A type and synthetic prisms schematic diagram; Figure 11 is vertical Type B picture breakdown synthesizer schematic diagram; Figure 12 is parallel Type B picture breakdown synthesizer schematic diagram; Figure 13 is vertical Type B picture breakdown and synthetic prisms schematic diagram; Figure 14 is vertical Type B picture breakdown and synthetic prisms schematic diagram B; Figure 15 is a transmission-type point control A type combination light valve imaging schematic diagram; Figure 16 is reflective point control A type combination light valve imaging schematic diagram.Figure 17 is transmission-type point control A type combination light valve imaging schematic diagram B; Figure 18 is reflective point control A type combination light valve imaging schematic diagram B.
Second embodiment of electrooptical imaging method of the present invention is row control A type combination light valve imaging optical system.Figure 19 is a row control A type combination light valve pixel distribution matrix; Figure 20 is a row control A type light valve structure schematic diagram; Figure 21 is a transmission-type row control A type combination light valve imaging schematic diagram; Figure 22 is reflective row control A type combination light valve imaging schematic diagram.Figure 23 is transmission-type row control A type combination light valve imaging schematic diagram B; Figure 24 is reflective row control A type combination light valve imaging schematic diagram B.
The 3rd embodiment of electrooptical imaging method of the present invention is point control Type B combination light valve imaging optical system.Figure 25 is reflective point control Type B light valve structure schematic diagram; Figure 27 is reflective point control Type B combination light valve imaging schematic diagram; Figure 28 is reflective point control Type B combination light valve imaging schematic diagram B.The 4th embodiment of electrooptical imaging method of the present invention is row control Type B combination light valve imaging optical system.Figure 26 is reflective row control Type B light valve structure schematic diagram; Figure 29 is reflective row control Type B combination light valve imaging schematic diagram; Figure 30 is reflective row control Type B combination light valve imaging schematic diagram B.
First, second is a transmission-type combination light valve large screen projection colour display device with the 3rd embodiment for large screen projection display unit of the present invention.Figure 31 is the illumination imaging projection optical system of transmission-type point control A type combination light valve large screen projection colour display device.Figure 32 is the illumination imaging projection optical system B of transmission-type point control A type combination light valve large screen projection colour display device.Figure 33 is the illumination imaging projection optical system of comprehensive transmission-type point control A type combination light valve large screen projection colour display device.The 4th embodiment of large screen projection display unit of the present invention is reflective combination light valve large screen projection colour display device.Figure 34 is the illumination imaging projection optical system of comprehensive reflective point control A type combination light valve large screen projection colour display device.Large screen projection display unit the 5th of the present invention and the 6th embodiment close light valve large screen projection colour display device for RGB three colour cells.Figure 35 is a RGB point control A type combination light valve pixel distribution schematic diagram; Figure 36 is RGB point control A type combination light valve pixel distribution schematic diagram B; Figure 37 is the illumination imaging projection optical system of the comprehensive transmission-type point control of RGB A type combination light valve large screen projection colour display device; Figure 38 is the illumination imaging projection optical system of the comprehensive reflective point control A type combination light valve large screen projection colour display device of RGB.
First embodiment of electrooptical imaging method of the present invention: piece image is divided into 2n * 2m pixel, and pixel is 2n at once, and the row pixel is 2m, constitutes picture element matrix M.Then, picture element matrix M is divided into two sub-matrix M 1 and M2 by odd-numbered line and even number line.Again pixel sub matrix M 1 is divided into two sub-matrix M 11 and M12 by odd column and even column, pixel sub matrix M 2 is divided into two sub-matrix M 21 and M22 by odd column and even column.In each pixel sub matrix, element value is 1 respective pixel unit, and element value is 0 corresponding non-pixel cell.The form of picture element matrix M and each pixel sub matrix is respectively
As mentioned above, the picture element matrix of piece image can be divided into four submatrixs, is distributed on four point control A type light valves, and each light valve has n * m pixel, and as shown in Figure 1, X is the row-coordinate of pixel, and Y is the row coordinate of pixel.These four point control A type light valves constitute point control A type combination light valve.When collimated light beam impinged perpendicularly on the point control A type combination light valve, by circuit control, each point control A type light valve formed the subimage of a width of cloth corresponding to pixel distribution on this device respectively.
As shown in Figure 2, on the point control A type light valve, divide the capable and 2m row of wide 2n.Even number line layout scan electrode bus (X1, X2 ..., Xn).Even column layout signal electrode bus (Y1, Y2 ..., Ym).The intersection region of odd-numbered line and odd column is a pixel.To each pixel,, arrange transistor switching circuit at the corresponding non-pixel region of row or column.Also picture element matrix M can be divided into two sub-matrix M 1 and M2 at interval by duplicate rows.Again pixel sub matrix M 1 is divided into two sub-matrix M 11 and M12 at interval by biserial, pixel sub matrix M 2 is divided into two sub-matrix M 21 and M22 at interval by biserial.In each pixel sub matrix, element value is 1 respective pixel unit, and element value is 0 corresponding non-pixel cell.The form of each pixel sub matrix is respectively
Corresponding to submatrix M11, the M12, M21 and the M22 that divide at interval by duplicate rows and biserial, on four point control A type light valves, divide the capable and 2m row of wide 2n.Non-pixel column layout scan electrode bus (X1, X2 ..., Xn).Non-pixel column layout signal electrode bus (Y1, Y2 ..., Ym).By this way, the optical characteristics of being convenient to make stripe-shaped half reflection and half transmission mirror and improving stripe-shaped half reflection and half transmission mirror.
Stripe-shaped half reflection and half transmission mirror is divided into two types on the flat mirror of stripe-shaped half reflection and half transmission and stripe-shaped half reflection and half transmission prism.The flat mirror of stripe-shaped half reflection and half transmission is divided into two types in dull and stereotyped stripe-shaped and the flat mirror of ladder stripe-shaped half reflection and half transmission again.Stripe-shaped half reflection and half transmission prism is divided into two types on A type and Type B ladder stripe-shaped half reflection and half transmission prism again.
As shown in Figure 3 and Figure 4, the flat mirror of stripe-shaped half reflection and half transmission, be on transparent base (as colouless optical glass or transparent plastic) [1],, make streak reflex minute surface [2] at interval by row or column with high reflectance corresponding to the size and the arrangement form of pixel on the light valve.Perhaps, on transparent base [1],, make streak reflex minute surface [2] at interval by duplicate rows or biserial with high reflectance corresponding to the size and the arrangement form of pixel on the light valve corresponding to the submatrix of dividing at interval by duplicate rows or biserial.One width of cloth subimage light beam is directly transmission from the transparent base between the streak reflex minute surface, and another width of cloth subimage light beam reflects from the streak reflex minute surface, and the two synthesizes the piece image light beam.In order to improve the light transmission features of the flat mirror of stripe-shaped half reflection and half transmission, make parallel incident beam perpendicular to the transparent base surface, make the flat mirror of ladder stripe-shaped half reflection and half transmission as shown in Figure 4.
As shown in Figure 5 and Figure 6, stripe-shaped half reflection and half transmission prism, be on 45 ° of inclined-planes of right angled isosceles triangle prism, size and arrangement form corresponding to pixel on the light valve, by row or column at interval, perhaps press duplicate rows or biserial at interval, make the ladder striped at interval, or form by many little right-angle prisms and microplate lens.Perhaps a part of light beam of piece image light beam directly transmission from the ladder striped of right-angle prism, another part light beam reflects from the interfringe 45 ° of inclined-planes of the ladder of right-angle prism, is decomposed into two width of cloth subimage light beams.A perhaps width of cloth subimage light beam directly transmission from the ladder striped of right-angle prism, another width of cloth subimage light beam reflects from the interfringe 45 ° of inclined-planes of the ladder of right-angle prism, and the two synthesizes the piece image light beam.Wherein, Type B ladder stripe-shaped half reflection and half transmission prism as shown in Figure 6 can also insert or the removal of images pixel between the interval.For example, corresponding points control A type light valve or plain edition light valve only are decomposed into a nonseptate image beam in the transmission or the echo area of light valve, and promptly there is incident beam the viewing area of pixel, and in the circuit region or the black matrix district of light valve, promptly non-pixel display area does not have incident beam; Or the interval between the image pixel light beam on elimination point control A type light valve or the plain edition light valve, a spaced image beam is synthesized a nonseptate image beam.
As shown in Figure 7 and Figure 8, optical element [1] is speculum or right-angle prism, optical element [2] is stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission mirror, A type combination light valve picture breakdown synthesizer is by stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission mirror, form with speculum or right-angle prism, can be divided into vertical A type and two types on parallel A type.In the vertical A type picture breakdown synthesizer, the exit direction of collimated light beam is perpendicular to incident direction.When two width of cloth subimage light beams of parallel incident install by this, one width of cloth subimage light beam is via speculum or right-angle prism [1] reflection, then, see through stripe-shaped half reflection and half transmission mirror [2], synthesize piece image with another width of cloth subimage light beam superposition that directly reflects by stripe-shaped half reflection and half transmission mirror [2].In the parallel A type picture breakdown synthesizer, the exit direction of collimated light beam is parallel to incident direction.When two width of cloth subimage light beams of parallel incident install by this, one width of cloth subimage light beam is via speculum or right-angle prism [1] and stripe-shaped half reflection and half transmission mirror [2] two secondary reflections, parallel locus of moving this light beam synthesizes the piece image light beam with another width of cloth subimage light beam superposition that directly passes stripe-shaped half reflection and half transmission mirror [2].In Fig. 7 and Fig. 8,, when promptly parallel incident beam changes parallel outgoing beam into and changes parallel incident beam into parallel outgoing beam, just the piece image light beam is decomposed into two width of cloth subimage light beams when beam direction is opposite.At this moment, when the piece image light beam of parallel incident during by vertical A type picture breakdown synthesizer, part image beam is directly reflected by stripe-shaped half reflection and half transmission mirror [2], another part image beam sees through stripe-shaped half reflection and half transmission mirror [2], then, via speculum or right-angle prism [1] reflection, thereby, the piece image light beam is decomposed into two width of cloth subimage light beams.When the piece image light beam of parallel incident during by parallel A type picture breakdown synthesizer, part image beam directly passes stripe-shaped half reflection and half transmission mirror [2], another part image beam is via stripe-shaped half reflection and half transmission mirror [2] and speculum or right-angle prism [1] two secondary reflection, parallel locus of moving this light beam, thereby, the piece image light beam is decomposed into two width of cloth subimage light beams.Right-angle prism [1] and stripe-shaped half reflection and half transmission prism [2] integral body be can be made, as shown in figure 10 picture breakdown of parallel A type and synthetic prisms formed, that is parallel A type picture breakdown synthesizer.Also right-angle prism [1] and stripe-shaped half reflection and half transmission prism [2] integral body be can be made, picture breakdown of vertical A type and synthetic prisms formed, that is vertical A type picture breakdown synthesizer.
As Figure 11 and shown in Figure 12, optical element [1,2] be speculum or right-angle prism or stripe-shaped half anti-mirror, Type B combination light valve picture breakdown synthesizer is made up of one group of speculum or right-angle prism or stripe-shaped half anti-mirror, can be divided into vertical Type B and two types of parallel Type Bs.In the vertical Type B picture breakdown synthesizer, the exit direction of collimated light beam is perpendicular to incident direction.When two width of cloth subimage light beams of parallel incident installed by this, by speculum or right-angle prism or stripe-shaped half anti-mirror [1,2] reflection, superposition synthesized piece image to two width of cloth subimage light beams respectively.In the parallel Type B picture breakdown synthesizer, the exit direction of collimated light beam is parallel to incident direction.When two width of cloth subimage light beams of parallel incident install by this, one width of cloth subimage light beam is via speculum or right-angle prism or stripe-shaped half anti-mirror [1,2] two secondary reflections, parallel locus of moving this light beam synthesizes the piece image light beam with another width of cloth subimage light beam superposition.In Figure 11 and Figure 12,, when promptly parallel incident beam changes parallel outgoing beam into and changes parallel incident beam into parallel outgoing beam, just the piece image light beam is decomposed into two width of cloth subimage light beams when beam direction is opposite.At this moment, when the piece image light beam of parallel incident during, by speculum or right-angle prism or stripe-shaped half anti-mirror [1,2] reflection, be decomposed into two width of cloth subimage light beams respectively by vertical Type B picture breakdown synthesizer.When the piece image light beam of parallel incident during by parallel Type B picture breakdown synthesizer, part image beam is via speculum or right-angle prism or stripe-shaped half anti-mirror [1,2] two secondary reflections, parallel locus of moving this light beam, another part image beam directly passes through, thereby, be decomposed into two width of cloth subimage light beams.Right-angle prism or stripe-shaped half anti-mirror [1,2] can be made an integral body, form as Figure 13 or vertical Type B picture breakdown and synthetic prisms shown in Figure 14, that is vertical Type B picture breakdown synthesizer.Also right-angle prism or stripe-shaped half anti-mirror [1,2] integral body be can be made, parallel Type B picture breakdown and synthetic prisms formed, that is parallel Type B picture breakdown synthesizer.Wherein, vertical Type B picture breakdown as shown in figure 14 and synthetic prisms can also insert or the removal of images pixel between the interval.For example, corresponding points control A type light valve or plain edition light valve are decomposed into a spaced image beam with a nonseptate image beam, or a spaced image beam are synthesized a nonseptate image beam.Therefore, also available A type light valve or plain edition light valve are formed Type B combination light valve.
As Figure 15 and shown in Figure 16,, incide one group of image and decompose synthesizer from the collimated light beam of combination light valve [1] transmission of point control A type or reflection.This group image decomposes synthesizer and is made up of parallel A type picture breakdown synthesizer [2,3].Through the position between each sub-light valve of suitably adjusting point control A type combination light valve [1], according to pixels be listed as earlier, by the parallel A type picture breakdown synthesizer of forming by row stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism [2], subimage will be synthesized corresponding to two width of cloth subimages of pixel sub matrix M 11 and M12, subimage will be synthesized corresponding to two width of cloth subimages of pixel sub matrix M 21 and M22 corresponding to pixel sub matrix M 2 corresponding to pixel sub matrix M 1.Then, according to pixels go, the parallel A type picture breakdown synthesizer [3] by being made up of row stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism will synthesize a complete image corresponding to two width of cloth subimages of pixel sub matrix M 1 and M2.Among Figure 16, optical element [4] is the half reflection and half transmission mirror.
Generally, the parallel incident beam of point control A type combination light valve is produced by illumination optically focused colour filter beam splitting system.Size and manufacturing cost for the optically focused colour filter beam splitting system that reduces to throw light on, improve the utilance of light source power, between illumination optically focused colour filter beam splitting system and combination light valve, can adopt the picture breakdown synthesizer, will be from the parallel incident beam of illumination optically focused colour filter beam splitting system, be decomposed into corresponding subimage light beam, project on each sub-light valve of combination light valve.
As shown in figure 17, the parallel incident beam from illumination optically focused colour filter beam splitting system incides one group of image and decomposes synthesizer.This group image decomposes synthesizer and is made up of parallel A type picture breakdown synthesizer [5,6].Corresponding to the position between each sub-light valve of the point control A type of suitable adjustment combination light valve [1], according to pixels go earlier, by the parallel A type picture breakdown synthesizer of forming by row stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism [6], to be decomposed into two width of cloth subimage light beams corresponding to the parallel incident beam of a complete image corresponding to pixel sub matrix M 1 and M2.Then, according to pixels be listed as, by the parallel A type picture breakdown synthesizer of forming by row stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism [5], two width of cloth subimage light beams will be decomposed into corresponding to the subimage light beam of pixel sub matrix M 1, two width of cloth subimage light beams will be decomposed into corresponding to the subimage light beam of pixel sub matrix M 2 corresponding to pixel sub matrix M 21 and M22 corresponding to pixel sub matrix M 11 and M12.Each width of cloth subimage light beam is through point control A type combination light valve [1] spatial modulation, its parallel outgoing beam is as shown in figure 15 similar and as mentioned above, the picture breakdown synthesizer of forming via parallel A type picture breakdown synthesizer [2,3] synthesizes the complete image of a width of cloth through spatial modulation.
As shown in figure 18, the parallel incident beam from illumination optically focused colour filter beam splitting system incides one group of image and decomposes synthesizer.This group image decomposes synthesizer and is made up of parallel A type picture breakdown synthesizer [2,3].Wherein, picture breakdown synthesizer [3] is made up of half reflection and half transmission mirror and speculum or right-angle prism.Corresponding to the position between each sub-light valve of the point control A type of suitable adjustment combination light valve [1], according to pixels go earlier, by the parallel A type picture breakdown synthesizer of forming by half reflection and half transmission mirror and speculum or right-angle prism [3], to be decomposed into two width of cloth subimage light beams corresponding to the parallel incident beam of a complete image corresponding to pixel sub matrix M 1 and M2.Then, according to pixels be listed as, by the parallel A type picture breakdown synthesizer of forming by row stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism [2], two width of cloth subimage light beams will be decomposed into corresponding to the subimage light beam of pixel sub matrix M 1, two width of cloth subimage light beams will be decomposed into corresponding to the subimage light beam of pixel sub matrix M 2 corresponding to pixel sub matrix M 21 and M22 corresponding to pixel sub matrix M 11 and M12.Each width of cloth subimage light beam is through point control A type combination light valve [1] spatial modulation, its parallel outgoing beam is as shown in figure 16 similar and as mentioned above, the picture breakdown synthesizer of forming via same parallel A type picture breakdown synthesizer [2,3] synthesizes the complete image of a width of cloth through spatial modulation.
Second embodiment of electrooptical imaging method of the present invention:
As mentioned above, the picture element matrix M of piece image is divided into two sub-matrix M 1 and M2, is distributed on two row control A type light valves, and each light valve has n * 2m pixel, as shown in figure 19.Among Figure 19, X is the row-coordinate of pixel, and Y is the row coordinate of pixel.These two row control A type light valves constitute row control A type combination light valve.When collimated light beam impinged perpendicularly on the row control A type combination light valve, each row control A type light valve formed the subimage of a width of cloth corresponding to pixel distribution on this device respectively.
As shown in figure 20, on the row control A type light valve, divide the capable and 2m row of wide 2n.Odd number behavior pixel column.Each column region of odd-numbered line is a pixel.Even number line layout row pixel control circuit (X1, X2 ..., Xn).By row pixel control circuit, can be by line scanning, pointwise control each point pixel.Because each row pixel control circuit does not have direct coupling each other, can adopt parallel scan mode, simultaneously scan control multirow pixel.
Row pixel control circuit can have various ways, can select one of following two kinds of forms in the present embodiment.A kind ofly form by signal electrode bus and shift register.Another kind is made up of signal electrode bus and address bus decoding circuit.This address bus decoding circuit is made up of row pixel address bus, Vcc and decoding logic circuit, when decoding logic circuit be input as the address of selected pixel the time, output logic is 1, otherwise is 0.
Row pixel control circuit principle can be described as, and to each pixel, in the respective column zone of corresponding non-pixel column, arranges transistor switching circuit.This circuit is made up of mos transistor switch, storage capacitance and liquid crystal pixel.The control end of switch is connected to the corresponding output of shift register or address bus decoding circuit, is selected the row pixel of this row by shift register or address bus decoding circuit.When switch conduction, this pixel will with the signal electrode bus conducting of this row.
Corresponding to two that divide at interval by duplicate rows matrix M 1 and M2, on two row control A type light valves, divide the capable and 2m row of wide 2n.Non-pixel column layout row pixel control circuit (X1, X2 ..., Xn).By this way, the optical characteristics of being convenient to make stripe-shaped half reflection and half transmission mirror and improving stripe-shaped half reflection and half transmission mirror.
As Figure 21 and shown in Figure 22,, incide a parallel A type picture breakdown synthesizer [3] of forming by row stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism from the collimated light beam of combination light valve [1] transmission of row control A type or reflection.Through the position between each sub-light valve of suitably adjusting row control A type combination light valve [1], this picture breakdown synthesizer is according to pixels gone, and will synthesize a complete image corresponding to two width of cloth subimages of pixel sub matrix M 1 and M2.Among Figure 22, optical element [4] is the half reflection and half transmission mirror.
As mentioned above, size and manufacturing cost for the optically focused colour filter beam splitting system that reduces to throw light on, improve the utilance of light source power, between illumination optically focused colour filter beam splitting system and combination light valve, can adopt the picture breakdown synthesizer, to be decomposed into corresponding subimage light beam from the parallel incident beam of illumination optically focused colour filter beam splitting system, project on each sub-light valve of combination light valve.
As shown in figure 23, the parallel incident beam from illumination optically focused colour filter beam splitting system incides on the parallel A type picture breakdown synthesizer [6].Corresponding to the position between each sub-light valve of the row control A type combination light valve [1] of suitable adjustment, this picture breakdown synthesizer is according to pixels gone, to be decomposed into two width of cloth subimage light beams corresponding to the parallel incident beam of a complete image corresponding to pixel sub matrix M 1 and M2.Each width of cloth subimage light beam is through row control A type combination light valve [1] spatial modulation, and its parallel outgoing beam is as shown in figure 21 similar and as mentioned above, synthesizes the complete image of a width of cloth through spatial modulation via parallel A type picture breakdown synthesizer [3].
As shown in figure 24, the parallel incident beam from illumination optically focused colour filter beam splitting system incides on the parallel A type picture breakdown synthesizer [3].Picture breakdown synthesizer [3] is made up of half reflection and half transmission mirror and speculum or right-angle prism.Corresponding to the position between each sub-light valve of the row control A type combination light valve [1] of suitable adjustment, this picture breakdown synthesizer is according to pixels gone, to be decomposed into two width of cloth subimage light beams corresponding to the parallel incident beam of a complete image corresponding to pixel sub matrix M 1 and M2.Each width of cloth subimage light beam is through row control A type combination light valve [1] spatial modulation, and its parallel outgoing beam is as shown in figure 22 similar and as mentioned above, synthesizes the complete image of a width of cloth through spatial modulation via parallel A type picture breakdown synthesizer [3].
In the A of above-mentioned first and second embodiment type combination light valve imaging optical system, also can adopt the plain edition light valve is that other form light valve replaces point control or row control A type light valve, forms common A type combination light valve.For the common liquid crystals light valve, its aperture opening ratio is generally greater than 25%, and the standard openings rate is generally 35～40%.For reducing influencing each other between the pixel, can adopt the A type combination light valve picture breakdown synthesizer of forming by stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism.
The 3rd embodiment of electrooptical imaging method of the present invention:
Piece image is divided into 2n * 2m pixel, and pixel is 2n at once, and the row pixel is 2m, constitutes picture element matrix M.Then, can be by capable two sub-matrix N 1 and the N2 of being divided into of the capable and back n of preceding n.Again pixel sub matrix N 1 is divided into two sub-matrix N 11 and N12 by preceding m row and back m row, pixel sub matrix N 2 is divided into two sub-matrix N 21 and N22 by preceding m row and back m row.
As mentioned above, the picture element matrix of piece image can be divided into four submatrixs, is distributed on four reflective point control Type B light valves, and each light valve has n * m pixel.These four point control Type B light valves constitute point control Type B combination light valve.When collimated light beam impinged perpendicularly on the point control Type B combination light valve, each point control Type B light valve formed the subimage of a width of cloth corresponding to pixel distribution on this device respectively.
As shown in figure 25, on the reflective point control Type B light valve, divide the capable and m row of wide n.At this moment, each provisional capital is a pixel column on the light valve.Each row all is a pixel column.At the back side, light valve pixel district, arrange scan electrode bus and signal electrode bus respectively by row or column, corresponding each pixel is arranged transistor switching circuit.Can take the large scale integrated circuit mode, all scan electrode buses, signal electrode bus and transistor switching circuit are integrated in the back side, light valve pixel district.By control circuit, with regard to the state of each liquid crystal light valve of may command.
As shown in figure 27, from the collimated light beam of reflective point control Type B combination light valve [1] reflection, incide one group of image and decompose synthesizer.This group image decomposes synthesizer and is made up of with vertical Type B picture breakdown synthesizer [3] parallel Type B picture breakdown synthesizer [2].According to pixels be listed as earlier, by parallel Type B picture breakdown synthesizer [2], subimage will be synthesized corresponding to two width of cloth subimages of pixel sub matrix N 11 and N12, subimage will be synthesized corresponding to two width of cloth subimages of pixel sub matrix N 21 and N22 corresponding to pixel sub matrix N 2 corresponding to pixel sub matrix N 1.Then, according to pixels go,, will synthesize a complete image corresponding to two width of cloth subimages of pixel sub matrix N 1 and N2 by vertical Type B picture breakdown synthesizer [3].Among Figure 27, optical element [4] is the half reflection and half transmission mirror.
As mentioned above, size and manufacturing cost for the optically focused colour filter beam splitting system that reduces to throw light on, improve the utilance of light source power, between illumination optically focused colour filter beam splitting system and combination light valve, can adopt the picture breakdown synthesizer, to be decomposed into corresponding subimage light beam from the parallel incident beam of illumination optically focused colour filter beam splitting system, project on each sub-light valve of combination light valve.
As shown in figure 28, the parallel incident beam from illumination optically focused colour filter beam splitting system sees through half reflection and half transmission mirror [4], incides one group of image and decomposes synthesizer.This group image decomposes synthesizer and is made up of with vertical Type B picture breakdown synthesizer [3] parallel Type B picture breakdown synthesizer [2].Corresponding to the position between each sub-light valve of the reflective point control Type B combination light valve [1] of suitable adjustment, according to pixels go earlier, by vertical Type B picture breakdown synthesizer [3], to be decomposed into two width of cloth subimage light beams corresponding to the parallel incident beam of a complete image corresponding to pixel sub matrix N 1 and N2.Then, according to pixels be listed as, by parallel Type B picture breakdown synthesizer [2], two width of cloth subimage light beams will be decomposed into corresponding to the subimage light beam of pixel sub matrix N 1, two width of cloth subimage light beams will be decomposed into corresponding to the subimage light beam of pixel sub matrix N 2 corresponding to pixel sub matrix N 21 and N22 corresponding to pixel sub matrix N 11 and N12.Each width of cloth subimage light beam is through reflective point control Type B combination light valve [1] spatial modulation, its parallel outgoing beam is as shown in figure 27 similar and as mentioned above, and the picture breakdown synthesizer of forming via same parallel Type B picture breakdown synthesizer [2] and vertical Type B picture breakdown synthesizer [3] synthesizes the complete image of a width of cloth through spatial modulation.
The 4th embodiment of electrooptical imaging method of the present invention:
As mentioned above, the picture element matrix M of piece image can be distributed on two row control Type B light valves by capable two sub-matrix N 1 and the N2 of being divided into of the capable and back n of preceding n, and each light valve has n * 2m pixel.These two row control Type B light valves constitute row control Type B combination light valve.When collimated light beam impinged perpendicularly on the row control Type B combination light valve, each row control Type B light valve formed the subimage of a width of cloth corresponding to pixel distribution on this device respectively.
As shown in figure 26, on the reflective row control Type B light valve, divide the capable and 2m row of wide n.At this moment, each provisional capital is a pixel column on the light valve.Each row all is a pixel column.At the back side, light valve pixel district, be arranged in a row capable pixel control circuit, corresponding each pixel is arranged transistor switching circuit.Can take the large scale integrated circuit mode, all row pixel control circuits and transistor switching circuit are integrated in the back side, light valve pixel district.By row pixel control circuit, with regard to the state of each liquid crystal light valve of may command.
As shown in figure 29, the collimated light beam from reflective row control Type B combination light valve [1] reflection incides a vertical Type B picture breakdown synthesizer [2].This picture breakdown synthesizer is according to pixels gone, and will synthesize a complete image corresponding to two width of cloth subimages of pixel sub matrix N 1 and N2.Among Figure 29, optical element [4] is the half reflection and half transmission mirror.
As mentioned above, size and manufacturing cost for the optically focused colour filter beam splitting system that reduces to throw light on, improve the utilance of light source power, between illumination optically focused colour filter beam splitting system and combination light valve, can adopt the picture breakdown synthesizer, to be decomposed into corresponding subimage light beam from the parallel incident beam of illumination optically focused colour filter beam splitting system, project on each sub-light valve of combination light valve.
As shown in figure 30, the parallel incident beam from illumination optically focused colour filter beam splitting system sees through half anti-mirror [4], incides on the vertical Type B picture breakdown synthesizer [3].Reflective position of going between each sub-light valve of controlling Type B combination light valve [1] corresponding to suitable adjustment, according to pixels go, by vertical Type B picture breakdown synthesizer [3], to be decomposed into two width of cloth subimage light beams corresponding to the parallel incident beam of a width of cloth complete image corresponding to pixel sub matrix N 1 and N2.Each width of cloth subimage light beam is through reflective row control Type B combination light valve [1] spatial modulation, and its parallel outgoing beam is as shown in figure 29 similar and as mentioned above, synthesizes the complete image of a width of cloth through ovennodulation via same vertical Type B picture breakdown synthesizer [3].
In the Type B combination light valve imaging optical system of above-mentioned third and fourth embodiment, also can adopt point control or row control A type light valve or plain edition light valve respectively is that other form light valve replaces point control or row control Type B light valve, form point control or row control Type B combination light valve or common Type B combination light valve, and can be by adopting Type B picture breakdown and the synthetic prisms of making by Type B ladder stripe-shaped half reflection and half transmission prism, with the interval between insertion or removal of images pixel.
In above-mentioned four embodiment, adopted the pixel cell of liquid crystal light valve as point control type or row control type light valve.Also can adopt other light valve of crystal light valve, ferroelectric ceramic optical threshold or capable telecommunications number modulation printing opacity or reflective characteristic.
First, second is a transmission-type point control type combination light valve large screen projection colour display device with the 3rd embodiment for large screen projection display unit of the present invention, mainly is made up of signal processing circuitry and illumination imaging projection optical system.This illumination imaging projection optical system is respectively as Figure 31, Figure 32 and shown in Figure 33, different picture breakdowns, modulation and synthesis system are arranged respectively, and its illumination optically focused colour filter beam splitting system, colored synthesis system, projection lens system [40] are identical or similar with projection screen [41].Illumination optically focused colour filter beam splitting system mainly is made up of light source (xenon lamp) [1], UV filter [2], convergent lens system [3], IR filter [4], polarized light beam splitting prism [5], speculum [6], three dichroic mirror (abbreviation dichroic mirror) [7-9].Colored synthesis system mainly is made up of speculum [37], two dichroic mirror [38,39].Wherein, dichroic mirror [7] transmit blue, reflect green light and ruddiness; Dichroic mirror [8,38] reflect green light, transmit red light and blue light; Dichroic mirror [9,39] transmit red light, reflect green light and blue light.
In first embodiment of large screen projection display unit of the present invention, picture breakdown, modulation and synthesis system are as shown in figure 31, mainly decomposing synthesizer (parallel A type picture breakdown synthesizer [16-21,25-30]) by three transmission-type point control A type combination light valves [22-24] and six groups of images forms.
The natural daylight that light source produces through illumination optically focused colour filter beam splitting system, collimates and changes three kinds of monochromatic polarization parallel light beams of red, green, blue into.These three kinds monochromatic polarization parallel light beams corresponding to three width of cloth monochrome images, by three groups of parallel A type picture breakdown synthesizers [16-21], be decomposed into collimated light beam, incide on three transmission-type point control A type combination light valves [22-24] corresponding to three groups of monochromatic subimages.Through control circuit and these three combination light valve [22-24] spatial modulation, three groups of monochromatic subimages have been generated.Every group of monochromatic subimage synthesizes a complete monochrome image by corresponding one group of parallel A type picture breakdown synthesizer respectively.Then, by colored synthesis system, three width of cloth monochrome images are synthesized a width of cloth coloured image.At last, by projection lens system [40], image beam is projected on the large-screen [41].
In second embodiment of large screen projection display unit of the present invention, picture breakdown, modulation and synthesis system are shown in figure 32, mainly form by three transmission-type point control Type B combination light valve [22-24] vertical Type B picture breakdown synthesizers [10-15,31-36] with six groups.Each sub-light valve of each transmission-type Type B combination light valve can be point control A type light valve or plain edition light valve, and each vertical Type B picture breakdown synthesizer is vertical Type B picture breakdown and synthetic prisms.
The natural daylight that light source produces through illumination optically focused colour filter beam splitting system, collimates and changes three kinds of monochromatic polarization parallel light beams of red, green, blue into.These three kinds monochromatic polarization parallel light beams corresponding to three width of cloth monochrome images, by three groups of vertical Type B picture breakdown synthesizers [10-15], be decomposed into collimated light beam, incide on three transmission-type point control Type B combination light valves [22-24] corresponding to three groups of monochromatic subimages.Through control circuit and these three combination light valve [22-24] spatial modulation, three groups of monochromatic subimages have been generated.Every group of monochromatic subimage synthesizes a complete monochrome image by corresponding one group of vertical Type B picture breakdown synthesizer respectively.Then, by colored synthesis system, three width of cloth monochrome images are synthesized a width of cloth coloured image.At last, by projection lens system [40], image beam is projected on the large-screen [41].
In the 3rd embodiment of large screen projection display unit of the present invention, picture breakdown, modulation and synthesis system are as shown in figure 33, mainly by three transmission-type point control A type combination light valves [22-24], six groups of parallel A type picture breakdown synthesizer [16-21,25-30] vertical Type B picture breakdown synthesizer with six groups [10-15,31-36] composition.These six groups parallel A type picture breakdown synthesizers are formed six groups of comprehensive picture breakdown synthesizers with corresponding six groups of vertical Type B picture breakdown synthesizers.Wherein, every group of comprehensive picture breakdown synthesizer is made up of one group of vertical Type B picture breakdown synthesizer with a group of parallel A type picture breakdown synthesizer, and each vertical Type B picture breakdown synthesizer is made up of three speculums or right-angle prism or stripe-shaped half anti-mirror.
Three transmission-type point control A type combination light valves [22-24] are made up of four groups of transmission-type point control A type light valves respectively, can show that a width of cloth has the coloured image of 1920 * 1536 pixels.Wherein, every group has 9 sub-light valves, and each sub-light valve has 320 * 256 pixels, the monochromatic subimage that every group of 9 sub-light valve have 960 * 768 pixels with 3 * 3 the corresponding width of cloth of composition form.A corresponding combination light valve, the monochromatic subimage of 4 width of cloth can synthesize the monochrome image that a width of cloth has 1920 * 1536 pixels with 2 * 2 form.
The natural daylight that light source produces through illumination optically focused colour filter beam splitting system, collimates and changes three kinds of monochromatic polarization parallel light beams of red, green, blue into.These three kinds monochromatic polarization parallel light beams corresponding to three width of cloth monochrome images, by three groups of vertical Type B picture breakdown synthesizers [10-15] and corresponding three groups of parallel A type picture breakdown synthesizers [16-21], be decomposed into collimated light beam, incide on three transmission-type point control A type combination light valves [22-24] corresponding to three groups of monochromatic subimages.Through control circuit and these three combination light valve [22-24] spatial modulation, three groups of monochromatic subimages have been generated.Every group of monochromatic subimage synthesizes a complete monochrome image by corresponding one group of comprehensive picture breakdown synthesizer respectively, and eliminates the location interval of 9 sub-light valves with 3 * 3 composition form by vertical Type B picture breakdown synthesizer wherein.Then, by colored synthesis system, three width of cloth monochrome images are synthesized a width of cloth coloured image.At last, by projection lens system [40], image beam is projected on the large-screen [41].
As previously mentioned, in the illumination imaging projection optical system of first, second and the 3rd embodiment, also can adopt transmission-type plain edition light valve to replace transmission-type point control type light valve, form transmission-type plain edition combination light valve, to replace transmission-type point control type combination light valve.By adopting the picture breakdown synthesizer of making by stripe-shaped half anti-mirror, to reduce influencing each other between pixel.
In the illumination imaging projection optical system of first, second and the 3rd embodiment, as replacing point control A type combination light valve with row control A type combination light valve, correspondingly, in the picture breakdown synthesizer, remove parallel A type picture breakdown synthesizer [19-21,25-27], then can constitute transmission-type row control type combination light valve large screen projection colour display device.
The 4th embodiment of large screen projection display unit of the present invention is reflective point control type combination light valve large screen projection colour display device, mainly is made up of signal processing circuitry and illumination imaging projection optical system.This illumination imaging projection optical system mainly contains picture breakdown, modulation and synthesis system, illumination optically focused colour filter beam splitting system, colored synthesis system, projection lens system [40] and projection screen [41] as shown in figure 34.Illumination optically focused colour filter beam splitting system mainly is made up of light source (xenon lamp) [1], UV filter [2], convergent lens system [3], IR filter [4], polarized light beam splitting prism [5], speculum [6], three dichroic mirror (abbreviation dichroic mirror) [7-9].Speculum [6], dichroic mirror [8] and polarized light beam splitting prism [5] constitute colored synthesis system again.Wherein, dichroic mirror [7] transmit blue, reflect green light and ruddiness; Dichroic mirror [8] reflect green light, transmit red light and blue light; Dichroic mirror [9] transmit red light, reflect green light and blue light.
This picture breakdown, modulation and synthesis system are mainly decomposed synthesizer (parallel A type picture breakdown synthesizer [25-30]) vertical Type B picture breakdown synthesizer with three groups [31-36] and are formed by three reflective point control A type combination light valves [22-24], three groups of images.The vertical Type B picture breakdown synthesizers with three groups of these three groups parallel A type picture breakdown synthesizers [25-30] [31-36] are formed three groups of comprehensive picture breakdown synthesizers, wherein, every group of comprehensive picture breakdown synthesizer is made up of one group of vertical Type B picture breakdown synthesizer with a group of parallel A type picture breakdown synthesizer, and each vertical Type B picture breakdown synthesizer is made up of three speculums or right-angle prism or stripe-shaped half anti-mirror.
Three reflective point control A type combination light valves [22-24] are made up of four groups of reflective point control A type light valves respectively, can show that a width of cloth has the coloured image of 1920 * 1536 pixels.Wherein, every group has 9 sub-light valves, and each sub-light valve has 320 * 256 pixels, the monochromatic subimage that every group of 9 sub-light valve have 960 * 768 pixels with 3 * 3 the corresponding width of cloth of composition form.A corresponding combination light valve, the monochromatic subimage of 4 width of cloth can synthesize the monochrome image that a width of cloth has 1920 * 1536 pixels with 2 * 2 form.
The natural daylight that light source produces through illumination optically focused colour filter beam splitting system, collimates and changes three kinds of monochromatic polarization parallel light beams of red, green, blue into.These three kinds monochromatic polarization parallel light beams corresponding to three width of cloth monochrome images, by three groups of vertical Type B picture breakdown synthesizers [31-36] and corresponding three groups of parallel A type picture breakdown synthesizers [25-30], be decomposed into collimated light beam, incide on three reflective point control A type combination light valves [22-24] corresponding to three groups of monochromatic subimages.Through control circuit and these three combination light valve [22-24] spatial modulation, three groups of monochromatic subimages have been generated.Every group of monochromatic subimage synthesizes a complete monochrome image by corresponding one group of comprehensive picture breakdown synthesizer respectively, and eliminates the location interval of 9 sub-light valves with 3 * 3 composition form by vertical Type B picture breakdown synthesizer wherein.Then, by colored synthesis system, three width of cloth monochrome images are synthesized a width of cloth coloured image.At last, by projection lens system [40], image beam is projected on the large-screen [41].
As previously mentioned, in the illumination imaging projection optical system of the 4th embodiment of large screen projection display unit of the present invention, also can adopt reflective plain edition light valve to replace reflective point control type light valve, form reflective plain edition combination light valve, to replace reflective point control type combination light valve.By adopting the A type of forming by stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism to make up light valve picture breakdown synthesizer, to reduce influencing each other between the pixel.
In the illumination imaging projection optical system of the 4th embodiment of large screen projection display unit of the present invention, if decompose with row control A type combination light valve alternative image, point control A type combination light valve in modulation and the synthesis system, correspondingly, in the picture breakdown synthesizer, remove parallel A type picture breakdown synthesizer [25-27], perhaps decompose with row control Type B combination light valve alternative image, point control Type B combination light valve in modulation and the synthesis system, correspondingly, in the picture breakdown synthesizer, remove vertical Type B picture breakdown synthesizer [31], then can constitute reflective capable control type combination light valve large screen projection colour display device.
Large screen projection display unit the 5th of the present invention and the 6th embodiment are for being controlled three kinds of homogeneous beams of red, green, blue of incident respectively by three of a combination light valve or three groups of sub-light valves, be generated as monochrome image, by corresponding picture breakdown synthesizer, RGB three colour cells that three monochrome images of red, green, blue synthesized coloured image are closed light valve large screen projection colour display device, mainly are made up of signal processing circuitry and illumination imaging projection optical system.In this illumination imaging projection optical system,,,, synthesize coloured image with three monochrome images of red, green, blue directly by the picture breakdown synthesizer owing to need not adopt the dichroic mirror that is difficult for manufacturing.Thereby, reduced manufacture difficulty and cost, and can improve projected image brightness and improve picture quality.
As Figure 35 and shown in Figure 36, each pixel of display image is made up of three components of RGB (red, green, blue) or three sub-pixels.RGB three colour cells are closed light valve and are made up of three or three groups of point control type light valves, and the same colouring component of three components of the RGB of each pixel of display image (red, green, blue) or three sub-pixels or sub-pixel are distributed on corresponding one or the one group of point control type light valve.Among Figure 35, the elemental area of three components of RGB (red, green, blue) or three sub-pixels be display image single elemental area 25%.Among Figure 36, the different openings rate of the corresponding sub-light valve pixel of the elemental area of three components of RGB (red, green, blue) or three sub-pixels all can be greater than 25% of the single elemental area of display image.Corresponding RGB three colour cells shown in Figure 36 are closed light valve, need the elemental area of three components of corresponding RGB (red, green, blue) or three sub-pixels, design corresponding picture breakdown synthesizer, or the striped size of definite stripe-shaped half reflection and half transmission mirror.
In the 5th embodiment of large screen projection display unit of the present invention, illumination imaging projection optical system mainly contains picture breakdown, modulation and synthesis system, illumination optically focused filter system, projection lens system [40] and projection screen [41] as shown in figure 37.Illumination optically focused filter system mainly is made up of light source (xenon lamp) [1], UV filter [2], convergent lens system [3], IR filter [4].
This picture breakdown, modulation and synthesis system are mainly by a transmission-type point control A type combination light valve [22], a RGB three-color filter [42], two groups of parallel A type picture breakdown synthesizers [16,19,25,28] vertical Type B picture breakdown synthesizer [10 with two groups, 13,31,34] form.These two groups parallel A type picture breakdown synthesizers [16,19,25,28] are formed two groups of comprehensive picture breakdown synthesizers with corresponding two groups of vertical Type B picture breakdown synthesizers [10,13,31,34].Wherein, every group of comprehensive picture breakdown synthesizer is made up of one group of vertical Type B picture breakdown synthesizer with a group of parallel A type picture breakdown synthesizer, and each vertical Type B picture breakdown synthesizer is made up of three speculums or right-angle prism or stripe-shaped half anti-mirror.
This transmission-type point control A type combination light valve [22] is made up of three groups of sub-light valves, respectively corresponding RGB three primary colors.RGB three-color filter [42] is in three kinds of monochromes of three groups of zone difference transmission red, green, blues of corresponding three groups of sub-light valves.Every group of sub-light valve has 9 transmission-type point control A type light valves, and each sub-light valve has 640 * 480 pixels, the monochromatic subimage that the corresponding width of cloth of the composition form with 3 * 3 has 1920 * 1440 pixels.Corresponding RGB three colour cells are closed light valve, and the monochromatic subimage of 3 width of cloth can synthesize the coloured image that a width of cloth has 1920 * 1440 pixels.
The natural daylight that light source produces through illumination optically focused filter system, collimates and is collimated light beam.By one group of vertical Type B picture breakdown synthesizer [10,13] parallel A type picture breakdown synthesizer [16 with a group, 19], be decomposed into collimated light beam corresponding to the monochromatic subimage of three width of cloth, through RGB three-color filter [42] colour filter, three kinds of monochromatic collimated beam bundles of red, green, blue incide respectively on three groups of sub-light valves of this transmission-type point control A type combination light valve [22].Through control circuit and these three groups sub-light valve spatial modulation, generated the monochromatic subimage of three width of cloth.Then, synthesize a complete coloured image, and eliminate the location interval of 9 sub-light valves with 3 * 3 composition form by wherein vertical Type B picture breakdown synthesizer [31,34] by comprehensive picture breakdown synthesizer [25,28,31,34].At last, by projection lens system [40], image beam is projected on the large-screen [41].
In the 6th embodiment of large screen projection display unit of the present invention, illumination imaging projection optical system mainly contains picture breakdown, modulation and synthesis system, illumination optically focused filter system, projection lens system [40] and projection screen [41] as shown in figure 38.Illumination optically focused filter system mainly is made up of light source (xenon lamp) [1], UV filter [2], convergent lens system [3], IR filter [4], half reflection and half transmission prism [5].
This picture breakdown, modulation and synthesis system are mainly by a reflective point control A type combination light valve [22], a RGB three-color filter [42], one group of parallel A type picture breakdown synthesizer [25,28] vertical Type B picture breakdown synthesizer with a group [31,34] is formed.This parallel A type picture breakdown synthesizer [25,28] with vertical Type B picture breakdown synthesizer [31,34] form one group of comprehensive picture breakdown synthesizer, wherein, each vertical Type B picture breakdown synthesizer is made up of three speculums or right-angle prism or stripe-shaped half anti-mirror.
This reflective point control A type combination light valve [22] is made up of three groups of sub-light valves, respectively corresponding RGB three primary colors.RGB three-color filter [42] is in three kinds of monochromes of three groups of zone difference transmission red, green, blues of corresponding three groups of sub-light valves.Every group of sub-light valve has 9 reflective point control A type light valves, and each sub-light valve has 640 * 480 pixels, the monochromatic subimage that the corresponding width of cloth of the composition form with 3 * 3 has 1920 * 1440 pixels.Corresponding RGB three colour cells are closed light valve, and the monochromatic subimage of 3 width of cloth can synthesize the coloured image that a width of cloth has 1920 * 1440 pixels.
The natural daylight that light source produces through illumination optically focused filter system, collimates and is collimated light beam.By one group of vertical Type B picture breakdown synthesizer [31,34] parallel A type picture breakdown synthesizer [25 with a group, 28], be decomposed into collimated light beam corresponding to the monochromatic subimage of three width of cloth, through RGB three-color filter [42] colour filter, three kinds of monochromatic collimated beam bundles of red, green, blue incide respectively on three groups of sub-light valves of this reflective point control A type combination light valve [22].Through control circuit and these three groups sub-light valve modulation, generated the monochromatic subimage of three width of cloth.Then, organize comprehensive picture breakdown synthesizer by this and synthesize a complete coloured image, and eliminate the location interval of 9 sub-light valves with 3 * 3 composition forms by vertical Type B picture breakdown synthesizer wherein.At last, by projection lens system [40], image beam is projected on the large-screen [41].
As previously mentioned, in the illumination imaging projection optical system of large screen projection display unit the 5th of the present invention and the 6th embodiment, also can adopt the plain edition light valve to replace point control type light valve, form plain edition combination light valve, to replace point control type combination light valve.By adopting the A type of forming by stripe-shaped half reflection and half transmission mirror and speculum or right-angle prism to make up light valve picture breakdown synthesizer, to reduce influencing each other between the pixel.
In the illumination imaging projection optical system of the large screen projection display unit the the 3rd, the 4th, the 5th of the invention described above and the 6th embodiment, the parallel A type picture breakdown synthesizer in the comprehensive picture breakdown synthesizer is between vertical Type B picture breakdown synthesizer and combination light valve.Also can make in the comprehensive picture breakdown synthesizer vertical Type B picture breakdown synthesizer parallel A type picture breakdown synthesizer and the combination light valve between.In a kind of mode in back, because at each sub-light valve neighboring edge place, by pixel cell and non-pixel cell interlaced arrangement, therefore, help improving the synthetic precision of picture breakdown of vertical Type B picture breakdown synthesizer, maybe can reduce the accuracy of manufacture requirement of vertical Type B picture breakdown synthesizer, and can reduce the size of parallel A type picture breakdown synthesizer, thereby, reduce manufacturing cost.

Claims (10)

1. electrooptical imaging method based on light valve and control circuit, it is characterized in that: form the combination light valve by one group of sub-light valve, pixel is distributed on each sub-light valve, the outgoing beam of pixel on the combination light valve, by the picture breakdown synthesizer, synthesize image beam.
2. by the described electrooptical imaging method of claim 1, it is characterized in that: this sub-light valve,
(a) or for point control A type light valve, the capable and non-pixel column of laying out pixel, laying out pixel row and non-pixel at interval at interval
Row adopt the transistor switch addressing, arrange scan electrode bus and signal respectively at non-pixel column and non-pixel column
Electrode bus bars, corresponding each pixel is arranged transistor switching circuit,
(b) or for going control A type light valve, the capable and non-pixel column of interval laying out pixel, each row all is a pixel column, adopts
The transistor switch addressing is arranged row pixel control circuit at non-pixel column, and corresponding each pixel is arranged crystal
The pipe switching circuit,
(c) or be reflective point control Type B light valve, each provisional capital is a pixel column, and each row all is a pixel column, adopts brilliant
The addressing of body pipe switch at the back side, light valve pixel district, is arranged scan electrode bus and signal electrode respectively by row or column
Bus, corresponding each pixel is arranged transistor switching circuit,
(d) or be reflective row control Type B light valve, each provisional capital is a pixel column, and each row all is a pixel column, adopts crystalline substance
The addressing of body pipe switch at the back side, light valve pixel district, is arranged in a row capable pixel control circuit, corresponding each pixel,
Arrange transistor switching circuit,
(e) or be the plain edition light valve, i.e. other form light valve.
3. by the described electrooptical imaging method of claim 1, it is characterized in that: this picture breakdown synthesizer
(a) or be A type picture breakdown synthesizer, by stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission
Mirror and speculum or right-angle prism are formed, and it is semi-transparent that this stripe-shaped half reflection and half transmission mirror is divided into the stripe-shaped half reflection
Penetrate two types on flat mirror and stripe-shaped half reflection and half transmission prism, the flat mirror of stripe-shaped half reflection and half transmission is thoroughly
On Benq's body, on colouless optical glass or transparent plastic, corresponding to the size and the layout of pixel on the A type light valve
Form is made the streak reflex minute surface at interval, and stripe-shaped half reflection and half transmission prism is the inclined-plane at right-angle prism
On, corresponding to the size and the arrangement form of pixel on the light valve, make the ladder striped at interval, or by many little right angles
Prism and microplate lens are formed, and also stripe-shaped half reflection and half transmission prism and right-angle prism can be made one
Integral body forms A type picture breakdown and synthetic prisms, this A type picture breakdown synthesizer and A type combination light valve
Cooperate, or, be decomposed into the incident beam of each A type light valve incident beam, or going out each A type light valve
Irradiating light beam synthesizes image beam,
(b) or be Type B picture breakdown synthesizer, form by one group of speculum or right-angle prism or stripe-shaped half anti-mirror,
Also right-angle prism group or stripe-shaped half reflection and half transmission prism group can be made an integral body, form Type B figure
Picture decomposes and synthetic prisms, and this Type B picture breakdown synthesizer cooperates with Type B combination light valve, or with incident
Light beam is decomposed into the incident beam of each Type B light valve, or with the outgoing beam of each Type B light valve, synthetic
Be image beam,
(c) or be comprehensive picture breakdown synthesizer, form by A type and Type B picture breakdown synthesizer.
4. display device based on light valve is characterized in that:
(a) or for point control A type light valve, the capable and non-pixel column of laying out pixel, laying out pixel row and non-pixel at interval at interval
Row adopt the transistor switch addressing, arrange scan electrode bus and signal respectively at non-pixel column and non-pixel column
Electrode bus bars, corresponding each pixel is arranged transistor switching circuit,
(b) or for going control A type light valve, the capable and non-pixel column of interval laying out pixel, each row all is a pixel column, adopts
The transistor switch addressing is arranged row pixel control circuit at non-pixel column, and corresponding each pixel is arranged crystal
The pipe switching circuit,
(c) or be reflective point control Type B light valve, each provisional capital is a pixel column, and each row all is a pixel column, adopts brilliant
The addressing of body pipe switch at the back side, light valve pixel district, is arranged scan electrode bus and signal electrode respectively by row or column
Bus, corresponding each pixel is arranged transistor switching circuit,
(d) or be reflective row control Type B light valve, each provisional capital is a pixel column, and each row all is a pixel column, adopts crystalline substance
The addressing of body pipe switch at the back side, light valve pixel district, is arranged in a row capable pixel control circuit, corresponding each pixel,
Arrange transistor switching circuit.
5. display device based on light valve is characterized in that: form the combination light valve by one group of sub-light valve, pixel is distributed on each sub-light valve, and this makes up light valve
(a) or for point control A type combination light valve, mainly form by the described point control A of claim 4 type light valve,
(b) or for row control A type combination light valve, mainly form by the described row control of claim 4 A type light valve,
(c) or for point control Type B combination light valve, mainly by the described point control A of claim 4 type light valve or reflective
Point control Type B light valve is formed,
(d) or for going control Type B combination light valve, mainly by the described row control of claim 4 A type light valve or reflective
Row control Type B light valve is formed,
(e) or be common A type combination light valve, be that other form light valve is formed mainly by the plain edition light valve,
(f) or be common Type B combination light valve, be that other form light valve is formed mainly by the plain edition light valve.
6. picture breakdown synthesizer is characterized in that:
(a) or be A type picture breakdown synthesizer, by stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission
Mirror and speculum or right-angle prism are formed, and it is semi-transparent that this stripe-shaped half reflection and half transmission mirror is divided into the stripe-shaped half reflection
Penetrate two types on flat mirror and stripe-shaped half reflection and half transmission prism, the flat mirror of stripe-shaped half reflection and half transmission is thoroughly
On Benq's body, on colouless optical glass or transparent plastic, corresponding to the size and the layout of pixel on the A type light valve
Form is made the streak reflex minute surface at interval, and stripe-shaped half reflection and half transmission prism is the inclined-plane at right-angle prism
On, corresponding to the size and the arrangement form of pixel on the light valve, make the ladder striped at interval, or by many little right angles
Prism and microplate lens are formed, and also stripe-shaped half reflection and half transmission prism and right-angle prism can be made one
Integral body forms A type picture breakdown and synthetic prisms, this A type picture breakdown synthesizer and A type combination light valve
Cooperate, or, be decomposed into the incident beam of each A type light valve incident beam, or going out each A type light valve
Irradiating light beam synthesizes image beam,
(b) or be Type B picture breakdown synthesizer, form by one group of speculum or right-angle prism or stripe-shaped half anti-mirror,
Also right-angle prism group or stripe-shaped half reflection and half transmission prism group can be made an integral body, form Type B figure
Picture decomposes and synthetic prisms, and this Type B picture breakdown synthesizer cooperates with Type B combination light valve, or with incident
Light beam is decomposed into the incident beam of each Type B light valve, or with the outgoing beam of each Type B light valve, synthetic
Be image beam,
(c) or be comprehensive picture breakdown synthesizer, form by A type and Type B picture breakdown synthesizer.
7. projection display equipment, it is characterized in that: adopt the described electrooptical imaging method of claim 1, based on monochrome or colour projection's optical system of combination light valve and picture breakdown synthesizer, perhaps based on monochrome or colour projection's optical system of picture breakdown synthesizer.
8. by the described a kind of projection display equipment of claim 7, it is characterized in that: this combination light valve is made up of one group of sub-light valve, this sub-light valve,
(a) or for point control A type light valve, the capable and non-pixel column of laying out pixel, laying out pixel row and non-pixel at interval at interval
Row adopt the transistor switch addressing, arrange scan electrode bus and signal respectively at non-pixel column and non-pixel column
Electrode bus bars, corresponding each pixel is arranged transistor switching circuit,
(b) or for going control A type light valve, the capable and non-pixel column of interval laying out pixel, each row all is a pixel column, adopts
The transistor switch addressing is arranged row pixel control circuit at non-pixel column, and corresponding each pixel is arranged crystal
The pipe switching circuit,
(c) or be reflective point control Type B light valve, each provisional capital is a pixel column, and each row all is a pixel column, adopts brilliant
The addressing of body pipe switch at the back side, light valve pixel district, is arranged scan electrode bus and signal electrode respectively by row or column
Bus, corresponding each pixel is arranged transistor switching circuit,
(d) or be reflective row control Type B light valve, each provisional capital is a pixel column, and each row all is a pixel column, adopts crystalline substance
The addressing of body pipe switch at the back side, light valve pixel district, is arranged in a row capable pixel control circuit, corresponding each pixel,
Arrange transistor switching circuit,
(e) or be the plain edition light valve, i.e. other form light valve.
9. by the described a kind of projection display equipment of claim 7, it is characterized in that: this picture breakdown synthesizer
(a) or be A type picture breakdown synthesizer, by stripe-shaped half reflection and half transmission mirror or other half reflection and half transmission
Mirror and speculum or right-angle prism are formed, and it is semi-transparent that this stripe-shaped half reflection and half transmission mirror is divided into the stripe-shaped half reflection
Penetrate two types on flat mirror and stripe-shaped half reflection and half transmission prism, the flat mirror of stripe-shaped half reflection and half transmission is thoroughly
On Benq's body, on colouless optical glass or transparent plastic, corresponding to the size and the layout of pixel on the A type light valve
Form is made the streak reflex minute surface at interval, and stripe-shaped half reflection and half transmission prism is the inclined-plane at right-angle prism
On, corresponding to the size and the arrangement form of pixel on the light valve, make the ladder striped at interval, or by many little right angles
Prism and microplate lens are formed, and also stripe-shaped half reflection and half transmission prism and right-angle prism can be made one
Integral body forms A type picture breakdown and synthetic prisms, this A type picture breakdown synthesizer and A type combination light valve
Cooperate, or, be decomposed into the incident beam of each A type light valve incident beam, or going out each A type light valve
Irradiating light beam synthesizes image beam,
(b) or be Type B picture breakdown synthesizer, form by one group of speculum or right-angle prism or stripe-shaped half anti-mirror,
Also right-angle prism group or stripe-shaped half reflection and half transmission prism group can be made an integral body, form Type B figure
Picture decomposes and synthetic prisms, and this Type B picture breakdown synthesizer cooperates with Type B combination light valve, or with incident
Light beam is decomposed into the incident beam of each Type B light valve, or with the outgoing beam of each Type B light valve, synthetic
Be image beam,
(c) or be comprehensive picture breakdown synthesizer, form by A type and Type B picture breakdown synthesizer.
10. by the described a kind of projection display equipment of claim 7, it is characterized in that: in this colour projection's optical system,
(a) or by three transmission-types make up three kinds of homogeneous beams of red, green, blue that light valves are controlled transmission respectively, by corresponding
The picture breakdown synthesizer, synthesize monochrome image respectively, then, with three monochrome images of red, green, blue,
Synthesize coloured image,
(b) or by three reflective combination light valves control three kinds of homogeneous beams of red, green, blue of reflection respectively, by corresponding
Picture breakdown synthesizer and reflected light path, these three kinds of homogeneous beams are synthesized coloured image,
(c) or control the red, green, blue three of transmission respectively by three of transmission-type combination light valve or three groups of sub-light valves
Plant homogeneous beam, be generated as monochrome image, by corresponding picture breakdown synthesizer, with three of red, green, blues
Monochrome image synthesizes coloured image,
(d) or control the red, green, blue three of reflection respectively by three of a reflective combination light valve or three groups of sub-light valves
Plant homogeneous beam, be generated as monochrome image, by corresponding picture breakdown synthesizer, with three of red, green, blues
Monochrome image synthesizes coloured image.
CNB991085515A 1999-06-16 1999-06-16 Electro-optical imaging method and large-screen projecting display Expired - Fee Related CN1159926C (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368375A (en) * 2011-09-16 2012-03-07 广东威创视讯科技股份有限公司 Method and device for multiplying resolution ratio of dot-matrix display screen and dot-matrix display screen system
CN105376483A (en) * 2015-10-27 2016-03-02 京东方科技集团股份有限公司 Image reconstruction method and device, eyeglass device and display system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368375A (en) * 2011-09-16 2012-03-07 广东威创视讯科技股份有限公司 Method and device for multiplying resolution ratio of dot-matrix display screen and dot-matrix display screen system
CN102368375B (en) * 2011-09-16 2015-04-08 广东威创视讯科技股份有限公司 Method and device for multiplying resolution ratio of dot-matrix display screen and dot-matrix display screen system
CN105376483A (en) * 2015-10-27 2016-03-02 京东方科技集团股份有限公司 Image reconstruction method and device, eyeglass device and display system
US20170116711A1 (en) * 2015-10-27 2017-04-27 Boe Technology Group Co., Ltd. Image reconstruction method and device, glasses device and display system
CN105376483B (en) * 2015-10-27 2018-11-27 京东方科技集团股份有限公司 A kind of image rebuilding method and device, eyeglass device and display system

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