CN107885022A - Double-lens laser projector display device and its application method - Google Patents
Double-lens laser projector display device and its application method Download PDFInfo
- Publication number
- CN107885022A CN107885022A CN201711466544.7A CN201711466544A CN107885022A CN 107885022 A CN107885022 A CN 107885022A CN 201711466544 A CN201711466544 A CN 201711466544A CN 107885022 A CN107885022 A CN 107885022A
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- light
- lens
- liquid crystal
- double
- projection
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2073—Polarisers in the lamp house
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
Abstract
A kind of double-lens laser projector display device is provided.The double-lens laser projector display device includes：Projection light machine, including laser, launch white light in the first direction；The polarizer, the light incident thereon from projection light machine is converted into the first polarised light propagated in the first direction and the second polarised light propagated in a second direction；First liquid crystal display systems and the first projection lens, the first polarised light sequentially pass through the first liquid crystal display systems and the first projection lens, then form the first projected picture in a first direction；Second liquid crystal display systems and the second projection lens, the second polarised light sequentially pass through the second liquid crystal display systems and the second projection lens, then form the second projected picture in a second direction；Wherein, the first liquid crystal display systems includes the first polaroid and the first liquid crystal panel that order is set, and the second liquid crystal display systems includes the second polaroid and the second liquid crystal panel that order is set, wherein, first direction and second direction are different directions from each other.
Description
Technical field
The present invention relates to Color Laser Projection Technology field, more particularly, is related to a kind of double-lens laser projecting apparatus display dress
Put.
Background technology
Projecting apparatus has the advantages that small volume, conveniently moving, drop shadow spread are wide, has been widely used in meeting and has given lessons to work as
In.Laser display technology has the advantages that colour gamut is big, color saturation is high and low in energy consumption, compared with traditional display technologies
As the major technique of display field of future generation.
In the prior art, laser-projector is usually single-lens projecting apparatus as shown in Figure 1, and the single-lens projecting apparatus can only
(for example, X-direction) carries out Projection Display in one direction.However, for some public place (such as concert scene, roundtable conferences
The circular meeting-place such as view), it is necessary to Projection Display is carried out to multiple different directions, at this moment need at least four projecting apparatus to meet to throw
Shadow demand.Fig. 2 is the site layout project of roundtable conference, and such setting can cause high cost and complicated projection arrangement structure.
Therefore, it is desirable to a kind of improved projector architecture reduces cost and simplifies projection arrangement structure.
The content of the invention
The exemplary embodiment of the present invention is to provide a kind of double-lens laser projection display equipment so that the laser projection
Display device realizes that the twin-lens of two different directions projects using shared back light system, so as to reduce use cost and letter
Change projection arrangement structure.
According to one exemplary embodiment of the present invention, there is provided a kind of double-lens laser projector display device, including：Throw
Shadow ray machine, including laser, launch white light in the first direction；The polarizer, the light incident thereon from projection light machine is turned
The second polarised light for being changed to the first polarised light propagated in the first direction and propagating in a second direction；First liquid crystal display systems and
First projection lens, set in a first direction, wherein, the first polarised light sequentially passes through the first liquid crystal display systems and first and thrown
Shadow camera lens, the first projected picture is then formed in a first direction；Second liquid crystal display systems and the second projection lens, are arranged on
In second direction, wherein, the second polarised light sequentially passes through the second liquid crystal display systems and the second projection lens, then in second party
It is upwardly formed the second projected picture；Wherein, the first liquid crystal display systems includes the first polaroid and the first liquid crystal that order is set
Panel, the second liquid crystal display systems include the second polaroid and the second liquid crystal panel that order is set, wherein, first direction and the
Two directions are different directions from each other.
The polarizer can be Transflective polarizer, and a part for the light from projection light machine is transmitted simultaneously in the first direction
And the first polarised light is converted to, while another part of the light from projection light machine is reflected in a second direction and is converted to
Two polarised lights.
First polarised light and the second polarised light can be linearly polarized light, and the direction of vibration of the first polarised light and second
The direction of vibration of polarised light can be perpendicular to one another.
Light from projection light machine can be with 45 degree of incident angles to the polarizer.
First direction can perpendicular to one another with second direction.
The polarization direction of first polaroid can be second direction, and the polarization direction of the second polaroid can be the 3rd
Direction, wherein, third direction is the direction of the plane formed perpendicular to first direction and second direction.
First polarised light can enter back into the first projection lens after the electro-optical modulation of the first liquid crystal display systems and be formed
First projected picture, and the second polarised light can enter back into the second projection after the electro-optical modulation of the second liquid crystal display systems
Camera lens forms the second projected picture.
First projected picture can be with identical or different with the second projected picture.
Two or more double-lens laser projector display devices can be disposed adjacent to enter to multiple different directions
Row Projection Display.
Described two or more double-lens laser projector display devices can be used in concert scene or roundtable conference
Projected picture is shown in view in all directions.
Brief description of the drawings
By the description to embodiment carried out below in conjunction with the accompanying drawings, above-mentioned and/or other objects and advantages of the invention
It will become apparent, wherein：
Fig. 1 is the structure chart for showing single-lens projector display device of the prior art；
Fig. 2 is the site layout project figure for showing the roundtable conference using single-lens projector display device in the prior art；
Fig. 3 is the structure chart for the double-lens laser projector display device for showing the exemplary embodiment according to the present invention；
And
Fig. 4 is the round table using double-lens laser projector display device for showing the exemplary embodiment according to the present invention
The site layout project figure of meeting.
Embodiment
Embodiments of the invention are reference will now be made in detail, the example of the embodiment is shown in the drawings, wherein, identical mark
Number all the time identical part is indicated.The embodiment will be illustrated by referring to accompanying drawing below, to explain the present invention.
Fig. 1 is the structure chart for showing single-lens projector display device 100 of the prior art.
As shown in figure 1, single-lens projector display device 100 include light supply apparatus (not shown), polarization converter 110,
111 and 112, three speculums 120 of dichroscope, light combination mirror 130,140, three polaroid P1-P3 of projection lens and three
Liquid crystal display L1-L3.
In Fig. 1, the white natural light sent from light supply apparatus is incided on polarization converter 110 as incident light 150.
Polarization converter 110 causes natural light to be converted to the linearly polarized light of a direction so as to improve the utilization ratio of light, i.e. in Fig. 1
Incident light 150 by being changed into linearly polarized light 101 after polarization converter 110, the polarization direction of the linearly polarized light 101 and polarisation
Piece P1, polaroid P2 are consistent with polaroid P3 polarization direction.
Linearly polarized light 101 is incided on dichroscope 111, and dichroscope 111 transmits to blu-ray reflection and to gold-tinted, anti-
The blue light (for example, light 102) penetrated sequentially is incided in polaroid P1 and liquid crystal display L1 after the reflection of speculum 120, liquid crystal
Screen L1 can be modulated to form image to blue light, and then, the image of formation is incided on the first surface of light combination mirror 130.
The gold-tinted (for example, light 103) transmitted by dichroscope 111 is incided on dichroscope 112, dichroscope
112 pairs of green reflections and to red transmission, the green glow reflected (for example, light 104) incides polaroid P2 and liquid crystal display
In L2, liquid crystal display L2 is modulated to form image to green glow, and then, the image of formation incides the second surface of light combination mirror 130
On.
Incided by the feux rouges (for example, light 105) that dichroscope 112 transmits after two speculums 120 reflect
In polaroid P3 and liquid crystal display L3, liquid crystal display L3 is modulated to form image to feux rouges, and then, the image of formation incides conjunction beam
On 3rd surface of mirror 130.
Light combination mirror 130 is combined into a branch of and the image after synthesis is emitted from the 4th surface of light combination mirror 130 three width images,
It is then incident in projection lens 140, projection lens 140 projects the image of synthesis on screen or to spectators' projected picture.
Fig. 2 is the site layout project figure for showing the roundtable conference using single-lens projector display device 100 in the prior art.
Single-lens projector display device 100 in Fig. 1 (for example, X-direction) can only carry out Projection Display in one direction.Such as scheming
, it is necessary to set the single-lens projector display device of at least four in seat 210 in the site layout project of roundtable conference shown in 2
100 towards four different directions (for example, front, rear, left, right) to project, so as to auditorium 220 in all directions
Projection display picture.Such setting can cause high cost and complicated projection arrangement structure.
Fig. 3 is the structure for the double-lens laser projector display device 300 for showing the exemplary embodiment according to the present invention
Figure.
In figure 3, double-lens laser projector display device 300 is included arranging in a first direction in (for example, X-direction)
Projection light machine 310, the polarizer 320, the first liquid crystal display systems 331 and the first projection lens 341 and be arranged in second party
To the second liquid crystal display systems 332 and the second projection lens 342 in (for example, Y direction).First direction and second direction can
To be different directions from each other.
Projection light machine 310 can send white natural light 360, for example, projection light machine 310 can be red including launching respectively
The laser of the tricolor laser of light, green glow and blue light, or any type of laser of transmitting white light can be included.It is optional
Ground is selected, projection light machine 310 can also be other Ordinary Light Sources Haves of metal halid lamp, ultra high pressure mercury bulb etc..
The natural light 360 sent from projection light machine 310 can in a first direction with such as 45 degree of incident angles to
On the polarizer 320.The polarizer 320 can be converted to natural light 360 polarised light (for example, linearly polarized light), and the polarizer 320 can be with
It is such as Transflective polarizer, a part for natural light 360 is transmitted in the first direction and is converted to the first polarised light
361, while another part of natural light 360 is reflected in a second direction and is converted to the second polarised light 362.Here, first party
To that can be X-direction as shown in Figure 3, second direction can be Y direction as shown in Figure 3, and third direction can be vertical
The Z-direction (not shown) of the plane directly formed in first direction and second direction, so as to which first direction to third direction can be with
It is different from each other and perpendicular to one another.
First polarised light 361 and the second polarised light 362 can be linearly polarized light, for example, the first polarised light 361 is along the
The Y-direction linearly polarized light (direction of vibration is Y direction) that one direction is propagated, the second polarised light 362 are to be propagated along second direction
Z-direction linearly polarized light (direction of vibration is Z-direction).Selectively, the first polarised light 361 and the second polarised light 362 can be with
For other any type of polarised lights.
The first polarised light 361 propagated in the first direction sequentially passes through the first liquid crystal display systems 331 and the first projection lens
Then first 341 form the first projected picture in a first direction.Specifically, the first polarised light 361 passes through the first liquid crystal display
The first projection lens 341 is entered back into after the electro-optical modulation of system 331 and forms the first projected picture.First liquid crystal display systems
331 include the first polaroid P1 and the first liquid crystal panel L1 that order is set in a first direction.First polaroid P1 polarization
Direction can be identical with the direction of vibration of the first polarised light 361, for example, be Y direction, so as to which the first polarised light 361 can be from
First polaroid P1 exiting parallels.First liquid crystal panel L1 is alternatively referred to as liquid crystal display, for after the first polaroid P1
First polarised light 361 carries out electro-optical modulation and forms image, and afterwards, the image of formation enters the first projection lens 341.First throws
Shadow camera lens 341 can be conventional any type of projector lens, for forming the first projected picture in a first direction simultaneously
And project the picture to spectators or project the picture on screen.
The second polarised light 362 propagated in a second direction sequentially passes through the second liquid crystal display systems 332 and the second projection lens
Then first 342 form the second projected picture in a second direction.Specifically, the second polarised light 362 passes through the second liquid crystal display
The second projection lens 342 is entered back into after the electro-optical modulation of system 332 and forms the second projected picture.Second liquid crystal display systems
332 include the second polaroid P2 and the second liquid crystal panel L2 that order is set in a second direction.Second polaroid P2 polarization
Direction can be identical with the direction of vibration of the second polarised light 362, for example, be Z-direction, so as to which the second polarised light 362 can be from
Second polaroid P2 exiting parallels.Second liquid crystal panel L2 is alternatively referred to as liquid crystal display, for after the second polaroid P2
Second polarised light 362 carries out electro-optical modulation and forms image, and afterwards, the image of formation enters the second projection lens 342.Second throws
Shadow camera lens 342 can be conventional any type of projector lens, for forming the second projected picture in a second direction simultaneously
And project the picture to spectators or project the picture on screen.
Here, the direction of vibration of the direction of vibration (for example, Y direction) of the first polarised light 361 and the second polarised light 362
(for example, Z-direction) vertically, the first polaroid P1 polarization direction (for example, Y direction) is inclined with the second polaroid P2's
Direction (for example, Z-direction) shake vertically.In addition, the first polaroid P1 and the second polaroid P2 can be conventional transmissions
Type polaroid or other kinds of polaroid.
Therefore, double-lens laser projector display device 300 can use same back light system (for example, projection light machine
310) Projection Display on two different directions is realized, i.e. by the first projection lens 341 project first in a first direction
Picture, the second picture is projected by the second projection lens 342 in a second direction.
In a further exemplary embodiment, although being not shown, the natural light 360 that is sent from projection light machine 310 can be with
In a first direction the polarizer is incided with other incidence angles (any angle in addition to 45 degree between 0 degree to 90 degree)
On 320, for example, natural light 360 can be with 30 degree or 60 degree of incident angles to the polarizer 320.The polarizer 320 still will
A part for natural light 360 transmits and is converted to the first polarised light 361 in the first direction, while by another portion of natural light 360
Divide and reflect in a second direction and be converted to the second polarised light 362, at this moment, first direction and second direction can be different directions
And mutual out of plumb.As it was previously stated, the first liquid crystal display systems 331 and the first projection lens 341 are set in sequence in first direction
On, the second liquid crystal display systems 332 and the second projection lens 342 are set in sequence in second direction, descriptions thereof will not be repeated.This
The double-lens laser projector display device of sample still can be realized in two different directions to enter using same back light system
Row Projection Display.
In addition, according to the needs of display, pass through the first liquid crystal display systems 331 and the Projection Display of the first projection lens 341
The first projected picture can with by the second liquid crystal display systems 332 and the Projection Display of the second projection lens 342 second throw
Shadow picture is identical or different.It is, for example, possible to use controller individually controls the first liquid crystal display systems 331 and the second liquid crystal
Display system 332 is to show different images.
Fig. 4 is shown according to exemplary embodiment of the invention using double-lens laser projector display device 300
The site layout project figure of roundtable conference.
As shown in figure 4, can in seat 210 two double-lens laser projector display devices 300 are adjacent and phase
The anti-each projection lens being configured so that in projecting apparatus is towards four different directions, for example, a double-lens laser projection
Two projection lens in instrument display device 300 are respectively for front and right, another double-lens laser projecting apparatus display dress
Two projection lens in 300 are put respectively for rear and left, so as to comprehensive to the spectators in circular auditorium 220
Ground projection display picture.For example, two double-lens laser projector display devices 300 can to the front of auditorium 220, top or
The curtain at rear carries out Projection Display, so as to which the spectators in auditorium 220 can watch projected picture by curtain, but originally
Inventive concept not limited to this, the position of double-lens laser projector display device 300, auditorium, projection screen can be carried out
It is various to convert to meet to watch needs.
Furthermore, it is possible to according to performance or the stage needs at meeting scene, by two double-lens laser projector display devices
300 is adjacent and be oppositely arranged and (for example, being symmetrical arranged or minute surface is set, be not shown) to cause each projection lens in projecting apparatus
The direction different towards three, so as to spectators' projection display picture in auditorium.
Selectively, two or more double-lens laser projector display devices 300 adjacent can be set as needed
Put to carry out (or non-in all directions) Projection Display in all directions to multiple different directions, for example, in concert scene or circle
Projected picture is shown in table meeting.
Same back light system is used according to the double-lens laser projector display device 300 of above-mentioned example embodiment
(for example, projection light machine) realizes the Projection Display on two different directions, simplifies projection structure, obtains multi-angle or full side
The drop shadow effect of position, meets round table demand and reduces use cost.
Although having show and described some exemplary embodiments of the present invention, it will be understood by those skilled in the art that
, can be to these in the case where not departing from the principle of the invention that its scope is limited by claim and its equivalent and spirit
Embodiment is modified.
Claims (10)
- A kind of 1. double-lens laser projector display device, it is characterised in that the double-lens laser projector display device bag Include：Projection light machine, including laser, launch white light in the first direction；The polarizer, the light incident thereon from projection light machine is converted into the first polarised light propagated in the first direction and edge The second polarised light that second direction is propagated；First liquid crystal display systems and the first projection lens, set in a first direction, wherein, the first polarised light sequentially passes through the One liquid crystal display systems and the first projection lens, then form the first projected picture in a first direction；Second liquid crystal display systems and the second projection lens, set in a second direction, wherein, the second polarised light sequentially passes through the Two liquid crystal display systems and the second projection lens, then form the second projected picture in a second direction,Wherein, the first liquid crystal display systems includes the first polaroid and the first liquid crystal panel that order is set, the second liquid crystal display System includes the second polaroid and the second liquid crystal panel that order is set,Wherein, first direction and second direction are different directions from each other.
- 2. double-lens laser projector display device according to claim 1, wherein, the polarizer is Transflective polarization Piece, a part for the light from projection light machine is transmitted in the first direction and is converted to the first polarised light, while hauled oneself willingly into the future Another part of the light of shadow ray machine reflects and is converted to the second polarised light in a second direction.
- 3. double-lens laser projector display device according to claim 2, wherein, the light from projection light machine is with 45 degree Incident angles on the polarizer.
- 4. double-lens laser projector display device according to claim 3, wherein, first direction and second direction are each other Vertically.
- 5. double-lens laser projector display device according to claim 4, wherein, the first polarised light and the second polarised light It is linearly polarized light, and the direction of vibration of the first polarised light is perpendiculared to one another with the direction of vibration of the second polarised light.
- 6. double-lens laser projector display device according to claim 5, wherein, the first polarised light is from the first polaroid Exiting parallel, the second polarised light is from the second polaroid exiting parallel.
- 7. double-lens laser projector display device according to claim 6, wherein, the first polarised light passes through the first liquid crystal The first projection lens is entered back into after the electro-optical modulation of display system and forms the first projected picture, and the second polarised light passes through second The second projection lens is entered back into after the electro-optical modulation of liquid crystal display systems and forms the second projected picture.
- 8. double-lens laser projector display device according to claim 7, wherein, the first projected picture and the second projection Picture is identical or different.
- 9. a kind of application method of double-lens laser projector display device, it is characterised in that will be according in claim 1 to 8 Any one described in two or more double-lens laser projector display devices be disposed adjacent with to multiple different sides To progress Projection Display.
- 10. the application method of double-lens laser projector display device according to claim 9, wherein, it is disposed adjacent Described two or more double-lens laser projector display device 360 degrees omnidirections ground projected picture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466544.7A CN107885022A (en) | 2017-12-28 | 2017-12-28 | Double-lens laser projector display device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466544.7A CN107885022A (en) | 2017-12-28 | 2017-12-28 | Double-lens laser projector display device and its application method |
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| Publication Number | Publication Date |
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| CN107885022A true CN107885022A (en) | 2018-04-06 |
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| CN201711466544.7A Pending CN107885022A (en) | 2017-12-28 | 2017-12-28 | Double-lens laser projector display device and its application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143604A (en) * | 2018-08-09 | 2019-01-04 | 深圳市华星光电技术有限公司 | Projection display equipment |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997014076A1 (en) * | 1995-10-13 | 1997-04-17 | Unic View Ltd. | Projector |
| US20020041361A1 (en) * | 2000-10-09 | 2002-04-11 | Prokia Technology Co., Ltd. | Triple-lens type projection display with uniform optical path lengths for different color components |
| CN2586979Y (en) * | 2002-11-29 | 2003-11-19 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal display module |
| CN1462897A (en) * | 2002-05-30 | 2003-12-24 | Nec液晶技术株式会社 | Reflecting LCD and mfg. method of same |
| CN101021641A (en) * | 2006-02-13 | 2007-08-22 | 三星电子株式会社 | Method of fabricating liquid crystal display and liquid crystal display fabricated by the same |
| CN101169517A (en) * | 2006-10-26 | 2008-04-30 | 中强光电股份有限公司 | Projecting apparatus |
| CN101779158A (en) * | 2007-10-18 | 2010-07-14 | 夏普株式会社 | Liquid crystal display device |
| CN201556017U (en) * | 2009-10-29 | 2010-08-18 | 天津三星电子有限公司 | Double-lens projector |
| CN102325242A (en) * | 2011-04-08 | 2012-01-18 | 香港应用科技研究院有限公司 | Many image projection devices |
| CN102360136A (en) * | 2011-10-26 | 2012-02-22 | 南京中电熊猫液晶显示科技有限公司 | Anti-peep liquid crystal display |
| US20130235280A1 (en) * | 2010-12-01 | 2013-09-12 | Lemoptix Sa | Projection system |
| CN103713419A (en) * | 2013-12-26 | 2014-04-09 | 京东方科技集团股份有限公司 | Display system |
| CN104142605A (en) * | 2014-07-14 | 2014-11-12 | 深圳雅图数字视频技术有限公司 | Projector |
-
2017
- 2017-12-28 CN CN201711466544.7A patent/CN107885022A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997014076A1 (en) * | 1995-10-13 | 1997-04-17 | Unic View Ltd. | Projector |
| US20020041361A1 (en) * | 2000-10-09 | 2002-04-11 | Prokia Technology Co., Ltd. | Triple-lens type projection display with uniform optical path lengths for different color components |
| CN1462897A (en) * | 2002-05-30 | 2003-12-24 | Nec液晶技术株式会社 | Reflecting LCD and mfg. method of same |
| CN2586979Y (en) * | 2002-11-29 | 2003-11-19 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal display module |
| CN101021641A (en) * | 2006-02-13 | 2007-08-22 | 三星电子株式会社 | Method of fabricating liquid crystal display and liquid crystal display fabricated by the same |
| CN101169517A (en) * | 2006-10-26 | 2008-04-30 | 中强光电股份有限公司 | Projecting apparatus |
| CN101779158A (en) * | 2007-10-18 | 2010-07-14 | 夏普株式会社 | Liquid crystal display device |
| CN201556017U (en) * | 2009-10-29 | 2010-08-18 | 天津三星电子有限公司 | Double-lens projector |
| US20130235280A1 (en) * | 2010-12-01 | 2013-09-12 | Lemoptix Sa | Projection system |
| CN102325242A (en) * | 2011-04-08 | 2012-01-18 | 香港应用科技研究院有限公司 | Many image projection devices |
| CN102360136A (en) * | 2011-10-26 | 2012-02-22 | 南京中电熊猫液晶显示科技有限公司 | Anti-peep liquid crystal display |
| CN103713419A (en) * | 2013-12-26 | 2014-04-09 | 京东方科技集团股份有限公司 | Display system |
| CN104142605A (en) * | 2014-07-14 | 2014-11-12 | 深圳雅图数字视频技术有限公司 | Projector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143604A (en) * | 2018-08-09 | 2019-01-04 | 深圳市华星光电技术有限公司 | Projection display equipment |
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Application publication date: 20180406 |