CN108254908A - A kind of light-source system and display device - Google Patents
A kind of light-source system and display device Download PDFInfo
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- CN108254908A CN108254908A CN201611236551.3A CN201611236551A CN108254908A CN 108254908 A CN108254908 A CN 108254908A CN 201611236551 A CN201611236551 A CN 201611236551A CN 108254908 A CN108254908 A CN 108254908A
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- light
- source
- photorefractive element
- source system
- photorefractive
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The invention discloses a kind of light-source system and display devices.The light-source system includes：Light source assembly, for emission source light；Optical modulator, in the light path of source light, for being modulated to obtain modulation light to source light；Photorefractive element has the region of at least two different refractivities, for being reflected to modulation light；Controller, for controlling light source assembly driving synchronous with photorefractive element, so that source photoperiodism enters optical modulator, and the region of synchronous at least two different refractivities Jing Guo photorefractive element carries out different refractions, and the superposition of pixel is realized to generate pixel-shift.By the above-mentioned means, the present invention can improve image resolution ratio, so as to provide user experience.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of light-source system and display device.
Background technology
In order to improve image resolution ratio, usual pixel cell size can more do smaller, and illumination light is in DMD (Digital
Micromirror Device, digital micro-mirror device) diffraction effect that generates on panel can becoming smaller with pixel cell size
Serious, the reduction of the efficiency that can lead to the display devices such as optical projection system that becomes smaller of pixel cell size more.In order to maintain to send out
Light efficiency usually requires the panel of bigger and higher cost.
In the prior art, usually resolution ratio is improved by following two technologies：
The first：The light being incident on liquid crystal board, i.e., be divided by E-shift (electronic migration) technology by birefringence principle
Different direction outgoing.Specifically, please referring to Fig.1-Fig. 2, incident light is polarised light, after polarised light injects liquid crystal board 10
Light can occur to reflect (as shown in Figure 1) after entering back into deflecting plate 11, and the pixel of final projection on the screen can also shift
(as shown in Figure 2), and for same pixel unit, due to the pixel superposition that pixel-shift is brought, finally obtain higher
Image in different resolution, in other words, user can see finer and smoother clearer picture.
But although good picture can be obtained, its scheme used there are it is corresponding the defects of：
1. cannot be directed to natural light since it carries out refraction processing only for polarization state light and carry out light processing, answering
With in range by larger limitation；
2. the easy aging of liquid crystal cell.
Second：Smooth picture (smooth picture) technology is the mode of machinery, specific as shown in Figure 3.Mainly
After incident light is injected DMD 41, then after the leaded light of light splitting light-combining prism that two prisms 42 form, then pass through
It crosses the sheet glass 43 of one or so reciprocating linear motion and a sheet glass 44 being obliquely installed is reflected and is emitted.The program
Equally it is since pixel-shift finally brings the raising of resolution ratio.
In second scheme, when 44 groups of the sheet glass that light is injected the sheet glass 43 of linear reciprocal movement and is obliquely installed
During conjunction, the light of injection can enter to the incident angle of offset, offset and light, the refractive index of sheet glass and sheet glass
The factors such as thickness are related, and relationship is as follows：
Wherein, Δ y is the offset of light, and t is the thickness of sheet glass, and θ is the incident angle of light, and n is sheet glass
Refractive index.
Due to the offset of light, the offset of location of pixels on projection screen is eventually brought, human eye can pass through sunset glow effect
The pixel of offset is overlapped, the final raising for realizing image resolution ratio.
However, there are a shortcomings for the program：Due to the linear movement of sheet glass, the light of outgoing can not be in a certain state
Stay longer (as shown in Figure 4), finally formed image pixel can not be in a certain state stay longer, image pixels
Be constantly in dynamic, can not be superimposed, therefore the topography formed may be relatively fuzzy, it is unintelligible, the offer that can not stablize compared with
High-resolution image, therefore user demand can not be met.
Invention content
The invention mainly solves the technical problem of providing a kind of light-source system and display devices, can improve the resolution of image
Rate, to obtain good user experience.
In order to solve the above technical problems, one aspect of the present invention is：A kind of light-source system is provided, the light source
System includes：
Light source assembly, for emission source light；
Optical modulator, in the light path of the source light, for being modulated to obtain modulation light to the source light；
Photorefractive element has the region of at least two different refractivities, for being reflected to the modulation light；
Controller, for controlling light source assembly driving synchronous with the photorefractive element so that the source photoperiod
Property the entrance optical modulator, and at least two different refractivity Jing Guo the photorefractive element region carry out not
Same refraction, the superposition of pixel is realized to generate pixel-shift.
Wherein, the light source assembly includes：
Light source sends out exciting light；
Fluorescent element, in the light path of the exciting light, for receiving the exciting light to generate the source light.
Wherein, any one of optical modulator DMD, LCD or LCOS.
Wherein, at least one region of photorefractive element is the structure of through-hole, and the through-hole is with the refractive index of air to warp
The light crossed is reflected.
Wherein, the region of all different refractivities of photorefractive element is using entity material quality, with the entity material quality of use
Refractive index the light of process is reflected.
Wherein, the region of the different refractivity of photorefractive element uses different materials, and different materials passes through gluing
Mode or integrally formed mode are attached.
Wherein, the region of the different refractivity of photorefractive element uses identical material, by setting different thickness
To realize different refractive index.
Wherein, the shape of photorefractive element is disk, strip or crawler belt shape.
Wherein, light-source system further includes prism, is arranged between the light source assembly and the optical modulator, for into
The light entered carries out guide-lighting；
The photorefractive element is arranged between the prism and camera lens or is arranged on the optical modulator and the rib
Between mirror.
Wherein, light-source system further includes first driving means and the second driving device, wherein the first driving means are used
In driving the fluorescent element, second driving device is used to drive the photorefractive element；
The controller controls the fluorescence member by controlling the first driving means and second driving device
Part is synchronous with the photorefractive element.
Wherein, there is the region of M different refractivity, controller control the first driving dress in photorefractive element
It is speed that second driving device drives the photorefractive element to put and drive the speed of the fluorescent element
At least M times, wherein, the M is the integer more than or equal to 2.
Wherein, it is respectively provided with mark position in fluorescent element and the photorefractive element, and the fluorescent element and described
The side of photorefractive element is respectively provided with sensor, and the sensor detects the position of the fluorescent element and the photorefractive element
It puts, and the information of the position is issued into the controller, the controller controls the fluorescence according to the information of the position
Element is synchronous with the photorefractive element.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of display device is provided, this is aobvious
Showing device includes any one of previously described light-source system.
The beneficial effects of the invention are as follows：The situation of the prior art is different from, the present invention provides a kind of light-source system and display
Device, light-source system include light source assembly, optical modulator, photorefractive element and controller, wherein, light source assembly is used to emit
Source light, optical modulator are located in the light path of source light, and for being modulated to source light to obtain modulation light, photorefractive element has extremely
The region of few two different refractivities, for being reflected to modulation light, controller is first for controlling light source assembly and anaclasis
Part synchronizes driving so that source photoperiodism enters optical modulator, and the synchronous at least two different foldings Jing Guo photorefractive element
The region for penetrating rate carries out different refractions, and the superposition of pixel is realized to generate pixel-shift.Therefore, the present invention can improve image
Resolution ratio, to obtain good user experience.
Description of the drawings
Fig. 1 is a kind of refraction schematic diagram for display device that the prior art provides；
Fig. 2 is the pixel-shift figure of display device shown in FIG. 1；
Fig. 3 is the structure diagram for another display device that the prior art provides；
Fig. 4 is the trajectory diagram of the emergent light of display device shown in Fig. 3；
Fig. 5 is a kind of structure diagram of light-source system provided in an embodiment of the present invention；
Fig. 6 is the structure diagram of another light-source system provided in an embodiment of the present invention；
Fig. 7 is the structure diagram of another light-source system provided in an embodiment of the present invention
Fig. 8-Figure 14 is respectively the structure diagram of different photorefractive elements；
Figure 15 is the trajectory diagram of the emergent light of the light-source system of the embodiment of the present invention.
Specific embodiment
Referring to Fig. 5, it is a kind of structure diagram of light-source system provided in an embodiment of the present invention.As shown in figure 5, this reality
The light-source system 50 for applying example includes light source assembly 51, optical modulator 52, photorefractive element 53 and controller 54.
Wherein, light source assembly 51 is used for emission source light.The light source assembly of the present embodiment includes light source 511 and fluorescent element
512.Light source 511 is preferably laser light source, for sending out exciting light.Fluorescent element 512 is located in the light path of the exciting light, is used for
The exciting light is received with generating source light.In the present embodiment, the laser is exactly being excited of being generated after fluorescent element 512 is stimulated
Light.In the present embodiment, fluorescent element 512 can be disc-shape, streaky shape etc..
Optical modulator 52 is located in the light path of source light, for being modulated to obtain modulation light to the source light.Wherein, light tune
Device 52 processed is DMD, LCD (Liquid Crystal Display, liquid crystal display) or LCOS (Liquid Crystal on
Silicon, the attached silicon of liquid crystal) in any one.The number of optical modulator 52 can be one, two, three or more.
Photorefractive element 53 has the region of at least two different refractivities, for being reflected to modulation light.This implementation
In example the shape of photorefractive element 53 be discoid (as shown in Figure 5 and Figure 6), strip structure or belt like (as shown in Figure 7) etc..
The material of photorefractive element 53 can be chosen as needed, such as glass may be used.
Further, light-source system 50 further includes prism 57, and in Figure 5, the prism 57 includes two 571 Hes of prism
572, it is used for the excitation light directing optical modulator 52 for sending out light source assembly 51.In the present embodiment, photorefractive element 53 is set
Between prism 57 and camera lens (not shown), as shown in Figure 5.The light that light source assembly 51 is emitted reaches light modulation after prism 57
Device 52 injects the anaclasis driven by driving device after the modulation light that optical modulator 52 is modulated again passes by 57 leaded light of prism
Element 53.
In other embodiments, photorefractive element 53 can also be provided between optical modulator 52 and prism 57, such as Fig. 6 and figure
Shown in 7, wherein the photorefractive element of Fig. 6 is discoid, and the photorefractive element of Fig. 7 is caterpillar band type.It is possible thereby to so that light tune
The distance of device 52 processed and photorefractive element 53 closer to so that light was more concentrated beats in photorefractive element 53, so as to reduce mirror
The BFL of head (Back focal length carry on the back intercept).
In the present embodiment, the setting in the region of the different refractivity of photorefractive element 53 is including following two：
The first sets the photorefractive element 53 with through-hole structure, i.e. at least one region of photorefractive element 53 is logical
The structure in hole, through-hole reflect the light of process with the refractive index of air.Specifically, have two with photorefractive element 53
For the region of a different refractivity.It in practical applications, can be by the anaclasis member of identical material in order to which technique is easy to make
Part 53 is arranged to the structure with through-hole, respectively as shown in FIG. 8 and 9, glass is used as example using the material of photorefractive element 53, schemes
8 be the glass disk with through-hole, and Fig. 9 is the glass bar of the strip structure with through-hole.With reach photorefractive element 53 tool there are two types of
The refractive index of refractive index, i.e. via regions is exactly the refractive index n1 of air, and another region is exactly 53 script material of photorefractive element
The refractive index n2 of matter.Further, in order to make 53 uniform rotation of photorefractive element, through-hole can be symmetrical arranged, please specifically join
It reads shown in Figure 10 and Figure 11, Figure 10 is to set through-hole respectively around the symmetrical position of shaft of glass disk, and Figure 11 is with glass
The center line of stick is symmetrical arranged through-hole on both sides respectively for symmetry axis.
In the present embodiment, the offset of the light and incident angle of light, the refractive index of photorefractive element 53 and light are rolled over
The thickness for penetrating element 53 is related, i.e.,
Wherein, Δ y is the offset of light, and t is the thickness of photorefractive element 53, and θ is the incident angle of light, and n is light
The refractive index of refracting element 53.
According to above-mentioned relation, in the case where t and θ is equal, when through-hole (corresponding folding of the light Jing Guo photorefractive element 53
Penetrate the region that rate is n1) when, due to the refractive index that n1 is air, no better than 1, therefore light is propagated along former direction, and light
When injecting the region of refractive index n2, due to the refractive index that n2 is photorefractive element 53, not equal to 1, therefore light will occur partially
It moves, the image pixel that the final light for the corresponding outgoing in two regions projects on the screen can be superimposed to be divided so as to reach to improve
Resolution.
It if, can be in the region other than through-hole during region of the photorefractive element 53 with the different resolution of 3 or more
Different materials is respectively adopted or identical material realizes different refractive index, specific setting can refer to introduced below second
Kind setting method.
Second, the region of all different refractivities of photorefractive element 53 is using entity material quality, with the entity of use
The refractive index of material reflects the light of process.That is in second of setting method, photorefractive element 53 is not provided with through-hole structure.
This kind of setting method includes following two different plans of establishment again：
The one of which plan of establishment is：The region of the different refractivity of photorefractive element 53 uses different materials, energy
It is enough effectively to solve the problems, such as that photorefractive element 53 balances, while preferably solves the above-mentioned photorefractive element 53 with through-hole in hole
Stray light is led to the problem of on edge.Specifically, can be disk with photorefractive element 53 by 53 subsection setup of photorefractive element
For structure, as shown in figs. 12-14, it is 2 sections, 4 sections and 8 sections respectively to divide photorefractive element 53, wherein, every section of area is excellent
Phase selection is same.And the material of every section of use is arranged as required to, it can be with every section using the material of different refractivity or a few sections of uses
The material of identical refractive index.As long as setting the material of A kind refractive index to specific region, wherein, A is photorefractive element
The quantity of 53 refractive index included.
For example, if photorefractive element 53 includes the region of two kinds of different refractivities of n1 and n2, refractive index can be used as n1
With the material of n2, as shown in figs. 12-14.In fig. 12, it is 2 sections photorefractive element 53 to be divided, n1 and n2 refractive index is respectively adopted
Material.In Figure 13 and 14, photorefractive element 53 is divided for 4 sections and 8 sections respectively, alternately using the material of n1 and n2 refractive index
Matter.
In the present embodiment, the material of different refractivity can be connected by way of glued, and the gap between material is avoided to lead
Image is caused to obscure.Another scheme, the material of different refractivity can be used integrally formed mode and formed, and realize that refractive index is different
Material seamless connection.
Described above is the asynchronous setting of material of different refractivity.In the present embodiment, same material can also be used
Matter realizes different refractive index, specifically, realizing different refractive index by setting the thickness of material of the same race different.
Referring again to Fig. 5, in the present embodiment, controller 54 is for controlling the drive synchronouss with photorefractive element 53 of light source assembly 51
It is dynamic so that source photoperiodism enters optical modulator 52, and synchronous at least two different refractivities Jing Guo photorefractive element 53
Region carry out different refraction, realize the superposition of pixel to generate pixel-shift.Specifically, light-source system 50 further includes
For driving fluorescent element 512, second drives for 55 and second driving device 56 of first driving means, wherein first driving means 55
Device 56 is used to drive photorefractive element 53.In the present embodiment, 55 and second driving device 56 of first driving means is preferably driven
Dynamic motor.
Controller 54 controls fluorescent element 512 particular by control 55 and second driving device 56 of first driving means
It is synchronous with photorefractive element 53.If having the region of M different refractivity in photorefractive element 53, the control of controller 54 first
Driving device 55 drives the speed that the speed of fluorescent element 512 is the second driving device 56 driving photorefractive element 53
At least M times, wherein, M is integer more than or equal to 2.
In the present embodiment, for the ease of the control of controller 54, the shape of fluorescent element 512 and photorefractive element 53 is preferred
It is identical, such as be all discoid or strip etc..By taking fluorescent element 512 and photorefractive element 53 are all discoid as an example, if light is rolled over
The region that element 53 includes two different refractivities is penetrated, then controls the second driving device 56 driving photorefractive element 53 rotation one
Week, control first driving means 55 drive fluorescent element 512 to rotate at least two weeks, as the period for controlling first driving means 55 is
120HZ, then the period for controlling the second driving device 56 is 60HZ, and two field pictures are superposed to piece image；Similarly, if anaclasis is first
Part 53 includes the region of four different refractivities, then the second driving device 56 driving photorefractive element 53 is controlled to rotate one week, control
First driving means 55 processed drive fluorescent element 512 to rotate at least surrounding.It, can in the case where needing to reach expected resolution ratio
It is synchronous with photorefractive element 53 to meet fluorescent element 512 by changing the rotating speed of fluorescent element, change can also be passed through
Photorefractive element 53 is synchronous with photorefractive element 53 to meet fluorescent element 512.According to change photorefractive element 53 scheme,
It then needs to consider the segmental structure in photorefractive element 53, if photorefractive element 53 is set as 2 such as Figure 12-14,4 and 8 sections,
The rotating speed that photorefractive element 53 can then be set is respectively 3600rpm, 1800rpm, 900rpm, so that the movement of emergent light
The period of track just more horn of plenty.
Further, setting flag position on fluorescent element 512, (figure is not for 512 side of fluorescent element setting sensor
Show).Setting flag position in photorefractive element 53,53 side of photorefractive element setting sensor (not shown).Sensor detects
The position of fluorescent element 512 and photorefractive element 53, and the information of position is issued into controller 54, controller 54 is according to position
Information control fluorescent element 512 is synchronous with photorefractive element 53.
Therefore, the present embodiment realizes the switching of different refractivity using photorefractive element 53, and controls fluorescent element 512
It is synchronous with photorefractive element 53, so that the light of outgoing is in a certain state stay longer (as shown in figure 15), finally
The image pixel of formation can not only overcome refractive index oscillation in traditional technology and cause in a certain state stay longer
Image it is unclear, but also the structure of machine is simpler.
In addition, the controller 54 of the present embodiment also further control light source 511, fluorescent element 512, optical modulator 52 and
Photorefractive element 53 synchronizes.
The embodiment of the present invention also provides a kind of display device, which includes light-source system as previously described.It is aobvious
Showing device is educates projecting apparatus, laser television, micro- throwing or movie theatre machine.
In conclusion the present invention improves the resolution ratio of image, to obtain good user experience.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (13)
1. a kind of light-source system, which is characterized in that the light-source system includes：
Light source assembly, for emission source light；
Optical modulator, in the light path of the source light, for being modulated to obtain modulation light to the source light；
Photorefractive element, including at least two regions, the refractive index in each region is different, for being rolled over to the modulation light
It penetrates；
Controller, for controlling light source assembly driving synchronous with the photorefractive element so that the source photoperiodism
Into the optical modulator, and at least two region Jing Guo the photorefractive element carries out different refractions, to generate
Pixel-shift realizes the superposition of pixel.
2. light-source system according to claim 1, which is characterized in that the light source assembly includes：
Light source sends out exciting light；
Fluorescent element, in the light path of the exciting light, for receiving the exciting light to generate the source light.
3. light-source system according to claim 1, which is characterized in that the optical modulator is in DMD, LCD or LCOS
It is any.
4. light-source system according to claim 1, which is characterized in that at least one region of the photorefractive element is logical
The structure in hole, the modulation photoperiodism pass through the through-hole and another region to be reflected to the modulation light.
5. light-source system according to claim 1, which is characterized in that at least two region of the photorefractive element
Using entity material quality, the modulation light, which respectively enters, uses at least two region of entity material quality with to the modulation light
It is reflected.
6. light-source system according to claim 5, which is characterized in that at least two region of the photorefractive element
Using different materials, different materials is by way of glued or integrally formed mode is attached.
7. light-source system according to claim 5, which is characterized in that at least two region of the photorefractive element
Using identical material, pass through the refractive index that different thickness is set to realize different.
8. light-source system according to claim 1, which is characterized in that the shape of the photorefractive element is disk, strip
Or crawler belt shape.
9. light-source system according to claim 2, which is characterized in that the light source assembly further includes prism, for by source
Light directing optical modulator；
The photorefractive element be arranged between the prism and camera lens or be arranged on the optical modulator and the prism it
Between.
10. light-source system according to claim 2, which is characterized in that the light-source system further includes first driving means
With the second driving device, wherein the first driving means are used to drive the fluorescent element, second driving device is used for
Drive the photorefractive element；
The controller by control the first driving means and second driving device control the fluorescent element and
The photorefractive element synchronizes.
11. light-source system according to claim 10, which is characterized in that there is M different folding in the photorefractive element
The region of rate is penetrated, it is described second that the controller, which controls the first driving means to drive the speed of the fluorescent element,
Driving device drives at least M times of the speed of the photorefractive element, wherein, the M is the integer more than or equal to 2.
12. light-source system according to claim 11, which is characterized in that on the fluorescent element and the photorefractive element
Mark position is respectively provided with, and the side of the fluorescent element and the photorefractive element is respectively provided with sensor, the sensor
The position of the fluorescent element and the photorefractive element is detected, and the information of the position is issued into the controller, it is described
Controller controls the fluorescent element synchronous with the photorefractive element according to the information of the position.
13. a kind of display device, which is characterized in that the display device includes such as claim 1-12 any one of them light sources
System.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236551.3A CN108254908A (en) | 2016-12-28 | 2016-12-28 | A kind of light-source system and display device |
| PCT/CN2017/109324 WO2018121058A1 (en) | 2016-12-28 | 2017-11-03 | Light source system and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236551.3A CN108254908A (en) | 2016-12-28 | 2016-12-28 | A kind of light-source system and display device |
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| CN108254908A true CN108254908A (en) | 2018-07-06 |
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| CN113721415A (en) * | 2021-08-30 | 2021-11-30 | 歌尔光学科技有限公司 | Projection light machine |
| WO2023044736A1 (en) * | 2021-09-24 | 2023-03-30 | 华为技术有限公司 | Projection display system and full-color projection light machine |
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| JP2001356316A (en) * | 2000-06-16 | 2001-12-26 | Sharp Corp | Projection type image display device |
| US20030090597A1 (en) * | 2000-06-16 | 2003-05-15 | Hiromi Katoh | Projection type image display device |
| CN201654427U (en) * | 2009-12-04 | 2010-11-24 | 孙顺庆 | Laser light source projector provided with phase modulator |
| CN105988266A (en) * | 2015-02-05 | 2016-10-05 | 深圳市绎立锐光科技开发有限公司 | Projection equipment, projection control system and projection control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721415A (en) * | 2021-08-30 | 2021-11-30 | 歌尔光学科技有限公司 | Projection light machine |
| WO2023044736A1 (en) * | 2021-09-24 | 2023-03-30 | 华为技术有限公司 | Projection display system and full-color projection light machine |
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| Publication number | Publication date |
|---|---|
| WO2018121058A1 (en) | 2018-07-05 |
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