CN109729323A - Optical projection system - Google Patents
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- CN109729323A CN109729323A CN201711023325.1A CN201711023325A CN109729323A CN 109729323 A CN109729323 A CN 109729323A CN 201711023325 A CN201711023325 A CN 201711023325A CN 109729323 A CN109729323 A CN 109729323A
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- escope
- local dimming
- imaging display
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Abstract
The present invention discloses a kind of optical projection system.The system comprises a light source modules, one first microscope group, one local dimming escope, one second microscope group, one imaging display and a projection lens, first microscope group, the local dimming escope, second microscope group, the imaging display and the projection lens are arranged on a predetermined optical path, a light caused by the light source module passes through first microscope group, the local dimming escope, second microscope group, the imaging display and projection lens, to form an image light source, the regulation that light caused by the light source module passes through the local dimming escope, to adjust the luminous flux of light, one regulatory region of the local dimming escope corresponds to an at least pixel region for the imaging display.Whereby, invention achieves the effects for the contrast for promoting image.
Description
Technical field
The present invention relates to a kind of optical projection systems, more particularly to a kind of optical projection system that can promote image contrast.
Background technique
Firstly, with the arrival of imformation age, along with the development of optics science and technology and projection display technique, height can be exported
The numerical digit projector of resolution and big picture, it has also become enterprise's bulletin, education and training, even becomes home entertaining at meetings and activities
In, the indispensable ring on vision imaging is being provided.Therefore, the high image quality, high brightness of projector, volume are light and handy,
Have become great index of the consumer on choosing.
However, in the prior art, existing optical projection system is in order to adjust the contrast (Contrast Ratio) of image
It is dynamic contrast technology mostly, i.e., is adjusted using dynamic universe light modulation (Dynamic Global Dimming).But it is dynamic
The mechanism of state universe light modulation is integrally to dim image or lighten, and therefore, the visual effect performance that will lead to image is poor.
Summary of the invention
Technical problem to be solved by the present invention lies in, provide in view of the deficiencies of the prior art it is a kind of can be promoted image nature
The optical projection system of contrast does not need dynamic sharing i.e. and can reach the technology for promoting contrast.
In order to solve the above technical problems, a wherein technical solution of the present invention is to provide a kind of projection system
System comprising a light source module, one first microscope group, a local dimming escope, one second microscope group, an imaging display and
One projection lens.The light source module can generate one along a predetermined optical path light, first microscope group neighboringly sets
It sets by a side of the light source module, and first microscope group is located on the predetermined optical path, the local dimming
Escope is neighboringly arranged in by a side of the light source module, and the local dimming escope is located at described make a reservation for
On optical path, second microscope group is neighboringly arranged in by a side of the light source module, and second microscope group is located at
On the predetermined optical path, the imaging display is neighboringly arranged in by a side of the light source module, and it is described at
Picture display is located on the predetermined optical path, and a side of the light source module is neighboringly arranged in the projection lens
Side, and the projection lens is located on the predetermined optical path, wherein the light can be by first microscope group, described
Local dimming escope, second microscope group, the imaging display and the projection lens, wherein the light is logical
The imaging display and the projection lens are crossed to form an image light source imaged on a screen.
Further, the resolution of the local dimming escope is less than or equal to the parsing of the imaging display
Degree.
Further, the local dimming escope has multiple regulatory regions, and the imaging display has more
A pixel region, and each described regulatory region of the local dimming escope corresponds respectively to the imaging display
The one or more pixel regions.
Further, the local dimming escope is LCoS panel, DLP panel or LCD panel.
Further, the imaging display is LCoS panel, DLP panel or LCD panel.
Further, the imaging display is single piece type framework or multiple-piece framework.
Further, the local dimming escope is arranged on a light source first time imaging area, and the imaging is aobvious
Show that device is arranged on second of imaging area of a light source.
Further, the optical projection system may further comprise: that a control module, the control module are electrically connected at
The local dimming escope and imaging display.
Further, the local dimming escope is by the control of the control module, to adjust across described
The luminous flux of the light of local dimming escope.
An other technical solution of the present invention is to provide a kind of optical projection system comprising a light source module, one
One microscope group, a local dimming escope, one second microscope group, an imaging display and a projection lens.Wherein, described first
Microscope group, the local dimming escope, second microscope group, the imaging display and the projection lens are arranged one
On predetermined optical path.Wherein, a light caused by the light source module passes through first microscope group, the local dimming type
Display, second microscope group, the imaging display and the projection lens, to form an image light source.Wherein, described
The light caused by light source module is led to by the regulation of the local dimming escope with adjusting the light of the light
Amount.Wherein, a regulatory region of the local dimming escope corresponds to an at least pixel region for the imaging display.
A wherein beneficial effect of the invention is that optical projection system provided by the embodiment of the present invention can utilize " described
Light can pass through first microscope group, the local dimming escope, second microscope group, the imaging display and institute
State projection lens " technical solution, and the contrast of image can be promoted.
Be further understood that feature and technology contents of the invention to be enabled, please refer to below in connection with it is of the invention specifically
Bright and attached drawing, however provided attached drawing is merely provided for reference and description, is not intended to limit the present invention.
Detailed description of the invention
Fig. 1 is the schematic diagram of the optical path of the optical projection system of first embodiment of the invention.
Fig. 2 is that the local dimming escope of the embodiment of the present invention and the one pair of them of imaging display answer schematic diagram.
Fig. 3 is that the local dimming escope of the embodiment of the present invention and the another pair of imaging display answer schematic diagram.
Fig. 4 is the function block schematic diagram of the optical projection system of the embodiment of the present invention.
Fig. 5 is the schematic diagram of the optical path of the optical projection system of second embodiment of the invention.
Fig. 6 is the schematic diagram of the optical path of the optical projection system of third embodiment of the invention.
Fig. 7 is the schematic diagram of the optical path of the optical projection system of fourth embodiment of the invention.
Fig. 8 is the schematic diagram of the optical path of the optical projection system of fifth embodiment of the invention.
Specific embodiment
It is to illustrate the presently disclosed embodiment in relation to " optical projection system " by particular specific embodiment below,
Those skilled in the art can understand advantages of the present invention and effect by content disclosed in this specification.The present invention can pass through other
Different specific embodiments is implemented or is applied, and the various details in this specification may be based on different viewpoints and application,
The various modifications of lower progress without departing from the spirit and change.In addition, attached drawing of the invention is only simple schematically illustrate, not
According to the description of actual size, stated.The relevant technologies content of the invention will be explained in further detail in the following embodiments and the accompanying drawings,
But the technical scope that disclosure of that is not intended to limit the invention.
It should be understood that although various elements or signal etc. may be described using term first, second, third, etc. herein,
But these elements or signal should not be limited by these terms.These terms are to distinguish an element and another element, Huo Zheyi
Signal and another signal.In addition, as used herein, term "or" may include depending on actual conditions and associated list project
Any of or multiple all combinations.
First embodiment
Firstly, refering to Figure 1, Fig. 1 is the schematic diagram of the optical path of the optical projection system of first embodiment of the invention.
The present invention provides a kind of optical projection system U comprising a light source module 1, one first microscope group 2,3 (area of a local dimming escope
Domain Light modulating type display panel), one second microscope group 4, an imaging display 5 and a projection lens 6.Light source module 1 can generate one
Along the light L in a predetermined optical path, for example, light source module 1 can be a Ultra-High Efficiency
(UHE) or the ultrahigh pressure mercury lamps such as Ultra-High Performance (UHP), furthermore, or a light-emitting diode
(Light-Emitting Diode, LED) or laser etc., in addition, in other embodiments, light source module 1 be also possible to by
Three light source units (please refer to shown in Fig. 7 and Fig. 8, first light source unit 11, second light source unit 12 and third light source unit
13) it is formed, and three light source units can generate feux rouges (being generated by first light source unit 11), green light (by second light source respectively
Unit 12 generates) and blue light (being generated by third light source unit 13).It should be noted that Fig. 1 in the first embodiment is with letter
It wants schematic diagram to be used as and illustrates that this case main concept, specific embodiment will further illustrate in subsequent embodiment.
Hold above-mentioned, for first embodiment, the first microscope group 2 can be neighboringly arranged in by a side of light source module 1, and
First microscope group 2 is located on predetermined optical path.Then, local dimming escope 3 can neighboringly be arranged in the one of light source module 1
By side, and local dimming escope 3 is located on predetermined optical path.In addition, light source can be neighboringly arranged in the second microscope group 4
By a side of module 1, and the second microscope group 4 is located on predetermined optical path.Furthermore (the Imaging Micro of imaging display 5
Display) can neighboringly be arranged in by a side of light source module 1, and imaging display 5 is located on predetermined optical path.Into
One step, projection lens 6 can be neighboringly arranged in by a side of light source module 1, and projection lens 6 is located at predetermined optical path
On.For the embodiment of the present invention, local dimming escope 3 be may be provided between the first microscope group 2 and the second microscope group 4, imaging
Display 5 may be provided between the second microscope group 4 and projection lens 6, and whereby, light L caused by light source module 1 can pass through first
Microscope group 2, local dimming escope 3, the second microscope group 4, imaging display 5 and projection lens 6.That is, light L can sequentially pass through
Local dimming escope 3 and imaging display 5.Furthermore, it is understood that after light L is by imaging display 5 and projection lens 6,
An image light source (not shown) imaged on a screen 7 (screen 7 can be wall or projection screen) can be formed.
In addition, it should be noted that, the tool of the first microscope group 2, the second microscope group 4, imaging display 5 and projection lens 6 in optical projection system U
Body framework is technology known to technical field personnel, and details are not described herein.
It holds above-mentioned, should be specified, the light L by (or can claim across) first microscope group 2 is to throw image-wise
It penetrating on local dimming escope 3, that is to say, that the light L by local dimming escope 3 is the light type being imaged,
For example, local dimming escope 3 can be penetration panel, and so invention is not limited thereto, in other embodiments,
Local dimming escope 3 can also be used reflective LCoS (Liquid Crystal on Silicon, liquid crystal on silicon) panel or
Numerical digit light processing (Digital Light Processing, DLP) panel, but collocation such as polarizing prism or complete interior is needed at this time
Reflecting prism (Total Internal Reflection Prism, TIR Prism) uses.In addition, light L is aobvious by imaging
After showing device 5 and projection lens 6, it can image on screen 7.That is, local dimming escope 3 may be provided at a light source for the first time
On imaging area, imaging display 5 be may be provided on second of imaging area of a light source.Whereby, local dimming escope 3 can conduct
One light valve uses.In addition, it is worth noting that, for first embodiment, imaging display 5 can be LCoS (Liquid
Crystal on Silicon, liquid crystal on silicon) display, however, in other embodiments, it can also be by changing the first mirror
The framework of group 2 and the second microscope group 4, and imaging display 5 is made to be LCD (Liquid Crystal Display) or DLP
(Digital Light Processing), system that invention is not limited thereto.In other words, imaging display 5 can be LCoS
Panel, DLP panel or LCD panel.
Then, please refer to shown in 2, Fig. 2 be the embodiment of the present invention local dimming escope and imaging display its
In a corresponding schematic diagram, the corresponding relationship between local dimming escope 3 and imaging display 5 described further below.
Specifically, local dimming escope 3 can have multiple regulatory regions (P11~Pij), and imaging display 5 can have multiple
Multiple regulatory region Pij of pixel region (M11~Mij), local dimming escope 3 can correspond respectively to imaging display 5
Multiple pixel region Mij.For example, the resolution of local dimming escope 3 may be less than or equal to imaging display 5
Resolution.Preferably, the resolution of local dimming escope 3 is smaller than the resolution of imaging display 5, with reach reduce at
This effect.
Furthermore, it is understood that referring back to shown in Fig. 2, for the embodiment of Fig. 2, the solution of local dimming escope 3
Analysis degree can be equal to the resolution of imaging display 5.Meanwhile multiple regulatory region Pij of local dimming escope 3 can distinguish
For a trellis region, and each trellis region can be by the driving chip (not shown) control of local dimming escope 3
System so that each regulatory region Pij property of can choose open or close.Whereby, aobvious by local dimming type with adjustment
Show the luminous flux of the light L of device 3.That is, light L caused by light source module 1 passes through the regulation of local dimming escope 3, with
Adjust the luminous flux of light L.In other words, institute of the embodiment of the present invention can be made by the setting of local dimming escope 3
The optical projection system U of offer has the effect of local dimming (local dimming) control.Whereby, it can be further improved and image in
The contrast of image light source on screen 7.Whereby, for the embodiment of the present invention, local dimming escope 3 can have pixel
The effect of grade light modulation (Pixel Level Dimming, abbreviation PLD), that is, local dimming escope 3 can be a Pixel-level
Dimmer display (Pixel Level Dimming Micro Display).In other words, it is assumed that local dimming escope 3
For two mega pixels, it can there is 2,000,000 regulatory region Pij to can be controlled separately the light across these regulatory regions Pij
L。
It holds above-mentioned, please refers to shown in Fig. 3, Fig. 3 is the local dimming escope and imaging display of the embodiment of the present invention
Another pair answer schematic diagram, for the embodiment of Fig. 3, it is aobvious that the resolution of local dimming escope 3 is smaller than imaging
Show the resolution of device 5, that is to say, that local dimming escope 3 has multiple regulatory region Pij, and imaging display 5 has more
A pixel region Mij, and each regulatory region Pij of local dimming escope 3 corresponds at least the two of imaging display 5
A pixel region Mij.That is one of regulatory region Pij of local dimming escope 3 at least corresponds to imaging display 5
One of pixel region Mij.Therefore, by Fig. 3 compared with Fig. 2 it is found that in the embodiment of fig. 3, local dimming type is aobvious
Show that one of regulatory region Pij of device 3 can correspond to four pixel region Mij of imaging display 5, however, in other realities
It applies in mode, one of regulatory region Pij of local dimming escope 3 is also possible to four corresponding to imaging display 5
A above pixel region Mij or two to four pixel region Mij, system that invention is not limited thereto.That is, local dimming
Each regulatory region Pij of escope 3 can correspond respectively to one or more pixel region Mij of imaging display 5.
Then, it please refers to shown in Fig. 4, Fig. 4 is the function block schematic diagram of the optical projection system of the embodiment of the present invention, with this hair
For bright embodiment, optical projection system U may also include a control module 8, and control module 8 can be electrically connected at local dimming type and show
Device 3 and imaging display 5.In addition, local dimming escope 3 can be by the control of control module 8, to adjust across region tune
The luminous flux of the light L of light type display 3.It for example, may include a video processing unit (Video in control module 8
Processing Unit, VPU, are not shown in the figure) and one for the multiple of selectively control area light modulation escope 3
Local dimming processing unit (the Proprietary Pixel Level Dimming of regulatory region Pij opened or closed
Processing Unit, is not shown in the figure).In addition, may include a local dimming escope in local dimming escope 3
Chip (not shown) is driven, and may include imaging display driving chip (not shown) in imaging display 5, and
Control module 8 can be electrically connected at local dimming escope driving chip and imaging display driving chip, and then foundation
One signal and control area dim escope 3.In other words, a light L caused by light source module 1 can pass through local dimming
Escope 3, and pass through a control module 8 to adjust the luminous flux of light L, and a control region of local dimming escope 3
Domain Pij can correspond to an at least pixel region Mij for imaging display 5.Furthermore, it is understood that can be by control module 8 according to institute
The signal that receives and judge that the brightness in which region needs to adjust, and then improve the contrast of image.
Hold it is above-mentioned, referring back to shown in Fig. 2 and Fig. 4, will be further illustrated below 8 control area of control module light modulation
The mode of multiple regulatory region Pij of escope 3.For example, local dimming escope 3 and imaging display 5 can be with
For converging module composed by a three-chip type R (red), G (green) and B (blue) display panel, and each color has 8
The grayscale of member shows that therefore, the state of regulatory region Pij can satisfy following relationship: Pij=WR*Rij+WG*Gij+WB*
Bij, wherein WR、WGAnd WBThe weighted value of three colors is respectively represented, wherein WR+WG+WB=1, such as: WR=WG=WB=1/3,
Or the ratio value combination after other optimizations, and Rij, Gij and Bij are the grayscale value of three colors.Therefore, if assuming region tune
The contrast of light type display 3 is 1000:1, and the contrast of imaging display 5 is 1000:1, and whereby, optical projection system U's is each
The contrast of a pixel can reach (1000) by individually regulation2: 1.However, it should be noted that, the present invention is not with above-mentioned
The control mode illustrated is limited.
Second embodiment
Firstly, please referring to shown in Fig. 5, Fig. 5 is the schematic diagram of the optical path of the optical projection system of second embodiment of the invention.
For second embodiment, optical projection system U may include a light source module 1 (for example, light source module 1 can be UHP), one first
Microscope group 2, a local dimming escope 3, one second microscope group 4, an imaging display 5 and a projection lens 6.In addition, first
Microscope group 2, local dimming escope 3, the second microscope group 4, imaging display 5 and projection lens 6 are arranged on a predetermined optical road
On diameter.Meanwhile local dimming escope 3 can be between imaging display 5 and light source module 1.It should be specified,
Relationship between local dimming escope 3 and imaging display 5 is similar with previous embodiment, and details are not described herein, that is,
It says, local dimming escope 3 can be by the control of control module 8, to adjust the light L across local dimming escope 3
Luminous flux.
Then, referring back to shown in Fig. 5, for second embodiment, optical projection system U provided by second embodiment can be with
For the projection framework of three-chip type LCD.Imaging display 5 may include that the imaging display of one first imaging display unit 51, one second is single
Member 52 and a third imaging display unit 53.In addition, the first imaging display unit 51, the second imaging display unit 52 and third at
As display unit 53 can be used as red imaging, green and blue display.Furthermore, it is understood that for second embodiment,
After light L caused by light source module 1 passes through the first microscope group 2, local dimming escope 3 and the second microscope group 4, a throwing can be formed
The first projection light P1 for being incident upon on the first imaging display unit 51, one are projected to the second projection on the second imaging display unit 52
Light P2 and one is projected to the third projection light P3 on third imaging display unit 53.Then, a light combination unit (figure can be passed through again
In it is unlabeled) and the first projection light P1, the second projection light P2 and third projection light P3 are subjected to light combination, and be projected to projection lens
In 6, and then form an image light source imaged on a screen 7.
It holds above-mentioned, for example, the first microscope group 2 may include that (PS-Converter is not marked in figure an at least polarisation converter
Number) and lens group (unlabeled in figure).Meanwhile second may include in microscope group 4 an at least color separation film (Dichroic Mirror,
It is unlabeled in figure), a reflecting mirror (unlabeled in figure) and lens group (unlabeled in figure).It should be noted that the first microscope group 2
Optical element (such as the color separation film, reflecting mirror and thoroughly of optical element (such as polarisation converter and lens group) and the second microscope group 4
Lens group group), it is technology known to technical field personnel, details are not described herein.
3rd embodiment
Firstly, please referring to shown in Fig. 6, Fig. 6 is the schematic diagram of the optical path of the optical projection system of third embodiment of the invention.
As Fig. 6 compared with Fig. 5 it is found that 3rd embodiment and second embodiment it is maximum the difference is that: provided by 3rd embodiment
Second microscope group 4 and imaging display 5 can be different from aforementioned second embodiment.For 3rd embodiment, imaging display 5 can
Think LCoS display.In addition, imaging display 5 may include one first imaging display unit 51, one second imaging display unit
52 and a third imaging display unit 53.In addition, the first imaging display unit 51, the second imaging display unit 52 and third imaging
Display unit 53 can be used as red imaging, green and blue display.
Furthermore, it is understood that light source module 1 (for example, light source module 1 can be by UHP) produces for 3rd embodiment
After raw light L passes through the first microscope group 2, local dimming escope 3 and the second microscope group 4, one can be formed and be projected to the first imaging
The first projection light P1, a second projection light P2 and one being projected on the second imaging display unit 52 on display unit 51 are thrown
The third projection light P3 being incident upon on third imaging display unit 53.Then it, then by the first imaging display unit 51, second is imaged aobvious
Show that unit 52 and third imaging display unit 53 are projected on a light combination unit (unlabeled in figure) to carry out light combination.Finally, throwing
It is incident upon in projection lens 6, to form an image light source imaged on a screen 7.
In addition, it should be noted that, light source module 1, the first microscope group 2, local dimming escope 3 in optical projection system U,
The structure feature and previous embodiment of two microscope groups 4, imaging display 5 and projection lens 6 are similar, and details are not described herein, also
It is to say, local dimming escope 3 can be by the control of control module 8, to adjust the light across local dimming escope 3
The luminous flux of L.Furthermore the optical element of the optical element of the first microscope group 2 and the second microscope group 4, for technical field personnel institute
Well known technology, details are not described herein.
Fourth embodiment
Firstly, please referring to shown in Fig. 7, Fig. 7 is the schematic diagram of the optical path of the optical projection system of fourth embodiment of the invention.
For fourth embodiment, optical projection system U may include a light source module 1 (for example, light source module 1 can for LED or
Laser), one first microscope group 2, a local dimming escope 3, one second microscope group 4, an imaging display 5 and a projection lens
First 6.In addition, the first microscope group 2, local dimming escope 3, the second microscope group 4, imaging display 5 and the setting of projection lens 6 exist
On one predetermined optical path.Meanwhile local dimming escope 3 can be between imaging display 5 and light source module 1.Palpus
It illustrates, the relationship and previous embodiment between local dimming escope 3 and imaging display 5 are similar, herein not
It repeats again, that is to say, that local dimming escope 3 can be aobvious across local dimming type with adjustment by the control of control module 8
Show the luminous flux of the light L of device 3.
Hold above-mentioned, for fourth embodiment, light source module 1 may include a first light source unit 11, a second light source list
Member 12 and a third light source unit 13, and light L can be by first light source unit 11, second light source unit 12 and third light source
One first light L1, the one second light L2 and a third light L3 that unit 13 generates respectively are formed, and the first light
L1, the second light L2 and third light L3 can generate red, green and blue light respectively.Meanwhile the first light L1, the second light
L2 and third light L3 can be by the light combination of the first microscope group 2, and passes through the first microscope group 2, local dimming escope 3, the second mirror
It organizes 4 and is projected on imaging display 5.For example, imaging display 5 provided by fourth embodiment can show for LCoS
Device, so invention is not limited thereto.Furthermore the optical element of the optical element of the first microscope group 2 and the second microscope group 4 is affiliated skill
Technology known to the personnel of art field, details are not described herein.
5th embodiment
Firstly, please referring to shown in Fig. 8, Fig. 8 is the schematic diagram of the optical path of the optical projection system of fifth embodiment of the invention.
As Fig. 8 compared with Fig. 7 it is found that the 5th embodiment and fourth embodiment it is maximum the difference is that: provided by the 5th embodiment
First microscope group 2, the second microscope group 4 and imaging display 5 can be different from aforementioned fourth embodiment.Furthermore, it is understood that the 5th implements
Example provided by optical projection system U framework can for single piece type numerical digit light processing (Digital Light Processing,
DLP) framework.Therefore, the imaging display 5 in the 5th embodiment can be a numerical digit microreflection mirror element (Digital
Micromirror Device, DMD).Whereby, the first light L1, the second light L2 and third light L3 can pass through the first microscope group
2, local dimming escope 3, the second microscope group 4 and be projected on imaging display 5.In addition, it should be noted that, in other implementations
In mode, imaging display 5 or single piece type framework or multiple-piece framework.
It should be specified, the relationship between local dimming escope 3 and imaging display 5 and previous embodiment phase
Imitative, details are not described herein, that is to say, that local dimming escope 3 can be by the control of control module 8, to adjust across area
Domain dims the luminous flux of the light L of escope 3.In addition, it should be noted that, the optical element of the first microscope group 2 and the second microscope group 4
Optical element, be technical field personnel known to technology, details are not described herein.
A wherein beneficial effect of the invention can be that optical projection system U provided by the embodiment of the present invention can be utilized
" light L can pass through the first microscope group 2, local dimming escope 3, the second microscope group 4, imaging display 5 and projection lens 6 "
Technical solution, and promote the contrast of image.
Content disclosed above is only preferred possible embodiments of the invention, not thereby limits to right of the invention and wants
The protection scope of book is sought, so all equivalence techniques variations done with description of the invention and accompanying drawing content, are both contained in
In the protection scope of claims of the present invention.
Claims (10)
1. a kind of optical projection system, which is characterized in that the optical projection system includes:
One light source module, the light source module can generate one along a predetermined optical path light；
One first microscope group, first microscope group are neighboringly arranged in by a side of the light source module, and first microscope group
On the predetermined optical path；
A side of the light source module is neighboringly arranged in one local dimming escope, the local dimming escope
Side, and the local dimming escope is located on the predetermined optical path；
One second microscope group, second microscope group are neighboringly arranged in by a side of the light source module, and second microscope group
On the predetermined optical path；
One imaging display, the imaging display are neighboringly arranged in by a side of the light source module, and the imaging
Display is located on the predetermined optical path；And
One projection lens, the projection lens are neighboringly arranged in by a side of the light source module, and the projection lens
On the predetermined optical path；
Wherein, the light can by first microscope group, the local dimming escope, second microscope group, it is described at
As display and the projection lens；
Wherein, the light is by the imaging display and the projection lens to form an image imaged on a screen
Light source.
2. optical projection system according to claim 1, which is characterized in that the resolution of the local dimming escope is less than
Or the resolution equal to the imaging display.
3. optical projection system according to claim 1, which is characterized in that the local dimming escope has multiple regulations
Region, the imaging display have multiple pixel regions, and each described control region of the local dimming escope
Domain corresponds respectively to the one or more pixel region of the imaging display.
4. optical projection system according to claim 1, which is characterized in that the local dimming escope be LCoS panel,
DLP panel or LCD panel.
5. optical projection system according to claim 1, which is characterized in that the imaging display is LCoS panel, DLP panel
Or LCD panel.
6. optical projection system according to claim 1, which is characterized in that the imaging display is single piece type framework or multi-disc
Formula framework.
7. optical projection system according to claim 1, which is characterized in that the local dimming escope is arranged in a light source
On first time imaging area, the imaging display is arranged on second of imaging area of a light source.
8. optical projection system according to claim 1, which is characterized in that the optical projection system may further comprise: a control
Module, the control module are electrically connected at the local dimming escope and imaging display.
9. optical projection system according to claim 8, which is characterized in that the local dimming escope passes through the control
The control of module, to adjust the luminous flux of the light across the local dimming escope.
10. a kind of optical projection system, which is characterized in that the optical projection system includes: a light source module, one first microscope group, a region
Dim escope, one second microscope group, an imaging display and a projection lens；
Wherein, first microscope group, the local dimming escope, second microscope group, the imaging display and institute
Projection lens is stated to be arranged on a predetermined optical path；
Wherein, a light caused by the light source module is by first microscope group, the local dimming escope, described
Second microscope group, the imaging display and the projection lens, to form an image light source；
Wherein, the light caused by the light source module is by the regulation of the local dimming escope, to adjust
State the luminous flux of light；
Wherein, a regulatory region of the local dimming escope corresponds to an at least pixel region for the imaging display
Domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023325.1A CN109729323B (en) | 2017-10-27 | 2017-10-27 | Projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023325.1A CN109729323B (en) | 2017-10-27 | 2017-10-27 | Projection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109729323A true CN109729323A (en) | 2019-05-07 |
| CN109729323B CN109729323B (en) | 2021-06-15 |
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| CN113885195A (en) * | 2021-08-17 | 2022-01-04 | 屏丽科技成都有限责任公司 | Color field correction method for eliminating image deviation of light combination prism |
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| CN113885195A (en) * | 2021-08-17 | 2022-01-04 | 屏丽科技成都有限责任公司 | Color field correction method for eliminating image deviation of light combination prism |
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