CN208903641U - Projection arrangement - Google Patents
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- CN208903641U CN208903641U CN201821571435.1U CN201821571435U CN208903641U CN 208903641 U CN208903641 U CN 208903641U CN 201821571435 U CN201821571435 U CN 201821571435U CN 208903641 U CN208903641 U CN 208903641U
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- update rate
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Abstract
A kind of projection arrangement.Projection arrangement includes picture update rate conversion chip, spatial light modulation circuit and control circuit.Picture update rate converts chip and carries out picture update rate conversion to the first vision signal and generate the second vision signal.Control circuit couples picture update rate conversion chip and spatial light modulation circuit, the resolution and picture update rate of projection image caused by the picture update rate adjustment space light modulation circuit according to the second vision signal.
Description
Technical field
The utility model relates to a kind of display device, and in particular to a kind of projection arrangement.
Background technique
Projector is a kind of for generating the display device of large scale picture.The image-forming principle of projector is by light source module
Generated illuminating bundle is converted into image strip by light valve (light valve), then image strip is passed through projection lens
It projects on screen or metope to form image.With the progress of shadow casting technique and the reduction of manufacturing cost, the use of projector
It gradually expands from commercial use to domestic use.
In current 4K projector, be only capable of receive resolution 1080P, picture update rate 60Hz video signal, and
Under the framework of 4K projector, resolution 1080P, picture update rate 60Hz video signal from image source (such as computer,
Computer) input 4K projector will generate the delay of 83.2 milliseconds (ms) to the time interval for outputing signal to light valve is converted to
Time so will lead to the phenomenon that projected picture postpones, and influence the use quality of 4K projector.Such as when 4K is projected
Machine for showing game picture, the delay phenomenon of projected picture will lead to player can not for game content event immediately into
Row reaction, and influence the quality of playing of game.
" background technique " paragraph is used only to help to understand the content of the present invention, therefore is taken off in " background technique " paragraph
The content of dew may include some known technologies without constituting road known to those skilled in the art.In " background technique " paragraph institute
The content of exposure does not represent the content or the utility model one or more embodiment problem to be solved, does not represent yet
It has been readily known to those persons skilled in the art or has recognized before the present utility model application.
Utility model content
The utility model provides a kind of image device, can be effectively improved the delay phenomenon of projected picture, and improves projection arrangement
Use quality.
The other objects and advantages of the utility model can be obtained from the technical characteristic disclosed by the utility model into one
The understanding of step.
It is to provide one kind up to one of above-mentioned or part or all of purpose or other purposes, an embodiment of the utility model
Projection arrangement comprising picture update rate converts chip, spatial light modulation circuit and control circuit.Picture update rate conversion is brilliant
Piece carries out picture update rate conversion to the first vision signal and generates the second vision signal.Control circuit couples picture update rate and turns
Chip and spatial light modulation circuit are changed, according to produced by the picture update rate adjustment space light modulation circuit of the second vision signal
Projection image resolution and picture update rate.
Based on above-mentioned, picture update rate control spatial light modulation circuit of the embodiments of the present invention according to vision signal
The resolution and picture update rate of generated projection image, to reduce prolonging for projected picture depending on the application scenarios of projection arrangement
The slow time, and the use quality of projection arrangement can be effectively improved.
In order to make the above-mentioned features and advantages of the utility model more obvious and understandable, special embodiment below, and cooperate attached drawing
It is described in detail below.
Detailed description of the invention
Fig. 1 is the schematic diagram according to a kind of projection arrangement of the embodiments of the present invention.
Fig. 2 is the schematic diagram according to a kind of projection arrangement of another embodiment of the utility model.
Fig. 3 is the signal according to the resolution and picture update rate of the adjustment projection image of the embodiments of the present invention
Figure.
Fig. 4 is the flow chart according to the projecting method of the projection arrangement of the embodiments of the present invention.
Fig. 5 is the flow chart according to the projecting method of the projection arrangement of another embodiment of the utility model.
Specific embodiment
Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to the excellent of attached drawing
It selects in the detailed description of embodiment, can clearly present.The direction term being previously mentioned in following embodiment, such as: upper and lower,
It is left and right, front or rear etc., it is only the direction with reference to attached drawing.Therefore, the direction term used is intended to be illustrative and not intended to limit this
Utility model.
Fig. 1 is to please refer to Fig. 1 according to a kind of schematic diagram of projection arrangement of the embodiments of the present invention.Projection arrangement
100 include that picture update rate conversion chip 102, control circuit 104 and spatial light modulation circuit 106, control circuit 104 couple
Picture update rate converts chip 102 and spatial light modulation circuit 106.Coupling is defined as being electrically connected.Picture update rate conversion is brilliant
Piece 102 can for example using MSD6A838 chip (manufacturer as ChenXing semiconductor Co., Ltd MStar Semiconductor,
Inc.) implement, be so not limited, there is the video letter of processing resolution 1080P (1920 × 1080 pixel), 240Hz
Number ability.Picture update rate conversion chip 102 can carry out picture update rate to vision signal (the first vision signal) S1 and turn
It changes and generates vision signal (the second vision signal) S2, wherein the picture update rate of vision signal S2 can be equal to or be less than video and believes
The picture update rate of number S1, such as vision signal S1 may be, for example, the vision signal of resolution 1080P, picture update rate 240Hz,
And vision signal S2 may be, for example, resolution 1080P, the vision signal of picture update rate 240Hz or resolution 1080P, picture
The vision signal of turnover rate 60Hz, is so not limited.
Control circuit 104 is used for produced by the picture update rate adjustment space light modulation circuit 106 according to vision signal S2
Projection image L3 resolution and picture update rate, adjust projection arrangement 100 to correspond to the use demand of user
Projection mode.For example, when user is intended to higher resolution to watch projected picture, picture update rate converts chip
102 can be converted to vision signal S1 the vision signal S2 with lower picture update rate, such as vision signal S1 is converted to
The vision signal S2 of resolution 1080P, picture update rate 60Hz.Control circuit 104 can be according to the frame updating of vision signal S2
Rate come judge vision signal S2 be belong to vision signal with lower picture update rate (the first default picture update rate) or
Vision signal with higher picture update rate (the second default picture update rate), control circuit 104, which is worked as, judges vision signal
When the picture update rate of S2 is equal to the first default picture update rate, control circuit 104 has high solution according to vision signal S2 projection
The image frame of analysis degree and lower picture update rate, such as resolution 4K2K (4096 × 2160 pixel), picture update rate
The image frame of 60Hz.
Similarly, when user is intended to higher picture update rate to watch projected picture, picture update rate conversion is brilliant
Vision signal S1 can be converted to the vision signal S2 with higher picture update rate (the second default picture update rate) by piece 102,
Such as vision signal S1 is converted to the vision signal S2 of resolution 1080P, picture update rate 240Hz.Control circuit 104, which is worked as, to be sentenced
When the picture update rate of disconnected vision signal S2 out is equal to the second default picture update rate, control circuit 104 can be according to vision signal
S2 projection has the image frame compared with low-res and high picture update rate, such as resolution 1080P, picture update rate
The image frame of 240Hz.Converting chip 102 and control circuit 104 all due to picture update rate has the high frame updating of processing
The ability of the vision signal of rate (such as 240Hz), therefore can significantly reduce projection arrangement 100 and generate throwing according to vision signal S1
Time needed for shadow image L3, projection arrangement 100 is under the application scenarios more demanding to picture update rate, such as display game
Under the application scenarios of picture, the situation of picture delay can be effectively improved, the quality of playing for influencing game is avoided.
So penetrate picture update rate adjustment space light modulation circuit 106 institute of the control circuit 104 according to vision signal S2
The resolution and picture update rate of the projection image L3 of generation can correspond to the use demand of user to adjust projection arrangement
100 projection mode, and effectively increase the usage mode of projection arrangement.
Fig. 2 is according to a kind of schematic diagram of projection arrangement of another embodiment of the utility model, referring to figure 2..In this reality
It applies in example, control circuit 104 may include control chip 202, image processing circuit 204 and image processing circuit 206, spatial light
Modulation circuit 106 then may include spatial modulator 208 and optical actuator 210.It controls chip 202 and couples picture update rate turn
Change chip 102, image processing circuit 204, image processing circuit 206 and optical actuator 210, image processing circuit 204 with
And image processing circuit 206 more couples spatial modulator 208.Controlling chip 202 is, for example, live programmable logic lock array
(Field Programmable Gate Array, FPGA), for example with Texas Instrument (Texas Instruments, TI)
The XPR3821 chip of manufacture is implemented, and is so not limited, also have processing resolution 1080P (1920 × 1080 pixel),
The ability of the vision signal of 240Hz.Vision signal S2 can be divided into sub-video signal (the first sub-video letter by control chip 202
Number) S21 and sub-video signal (the second sub-video signal) S22, and be respectively transmitted to image processing circuit 204 and figure
As processing circuit 206 so that image processing circuit 204 and image processing circuit 206 respectively according to sub-video S21 signal and
Sub-video signal S22 generates video signal (the first video signal) SD1 and video signal (the second video signal) SD2 to space
Modulator 208.Image processing circuit 204 and image processing circuit 206 are, for example, that the DDP4422 chip of Texas Instrument's manufacture comes
Implement, is so not limited.For example, when user is intended to higher picture update rate to watch projected picture, image
Signal SD1 includes resolution (960 × 1080 pixel), picture update rate 240Hz, video signal SD2 include resolution (960 ×
1080 pixels), picture update rate 240Hz.Video signal SD1 and video signal SD2 is transferred to spatial modulator 208, such as empty
Between modulator 208 images of 1920 × 1080 pixels can be presented, therefore video signal SD1 corresponds to the left side of spatial modulator 208
Region (960 × 1080), video signal SD2 correspond to the right area (960 × 1080) of spatial modulator 208.
Therefore, spatial modulator 208 can adjust illuminating bundle L1 according to video signal SD1 and video signal SD2
System, and generate modulation light beam L2.Spatial modulator 208 may be, for example, that liquid crystal covers silicon plate (Liquid Crystal On Silicon
Panel, LCoS panel), the reflecting lights modulation such as digital micromirror elements (Digital Micro-mirror Device, DMD)
Device, also or light transmitting liquid crystal panel (Transparent Liquid Crystal Panel), electro-optic modulators (Electro-
Optical Modulator), maganeto-optic modulators (Maganeto-Optic modulator), acousto-optic light modulation (Acousto-
Optic Modulator, AOM) etc. penetration light modulator, be so not limited.
In addition, control chip 202 can also control the swing of optical actuator 210 according to the picture update rate of vision signal S2
Mode to adjust the light path of modulation light beam L2, and projection image L3 is adjusted to higher resolution and lower picture
Projection image L3 is adjusted to the image compared with low-res and higher picture update rate by the image of turnover rate.Come in detail
It says, the schematic diagram of the resolution and picture update rate that adjust projection image L3 can be as shown in figure 3, optical actuator 210 be arranged
Between spatial modulator 208 and projection lens 302, illuminating bundle L1 is modulated via spatial modulator 208 and is converted into tune
After light beam L2 processed, control chip 202 according to vision signal S2 picture update rate control optical actuator 210 swing mode and
Projection image L3 is generated, projection image L3 penetrates projection lens 302 again and is projected onto projection target (such as metope or projection cloth
Curtain) on and form projected picture.
For example, when the picture update rate of vision signal S2 is 60Hz, control chip 202 controls optical actuator
It swings to 210 reciprocation types, to change the light path of modulation light beam L2, and then changes projection image L3 and be projected on projection target
Position, and achieve the effect that viewer viewing get up have increase pixel and image edge it is smooth.As shown in figure 3, working as optics
When actuator 210 falls in position PA, the projection pattern I1 that projection image L3 is formed on projection target, and work as optical actuator
210 when falling in position PB, the projection pattern I2 that projection image L3 is formed on projection target, wherein projection pattern I1 and perspective view
Case I2 can deviation distance D1, be so overlapped the projection pattern that multiple positions deviate from each other and using visual persistence effect principle will
It can reach the effect that pixel increases and image is smooth, and improve projected picture resolution.Such as during each picture frame suitably
Position is deviated from each other, the effect of 4K resolution will be can reach.
In another example control chip 202 controls optical actuator 210 when the picture update rate of vision signal S2 is 240Hz
It stops swinging, the light path for modulating light beam L2 at this time will not change with the swing of optical actuator 210 again, that is to say, that projection shadow
The same position that will be projected onto as L3 with the picture update rate of 240Hz on projection target.Compared to above-mentioned vision signal S2's
Situation when picture update rate is 60Hz, although the resolution of projection image L3 is not enhanced, the picture of projection image L3 is more
New rate will increase to 4 times.
By the utility model, it can significantly shorten the time that projection arrangement 200 handles vision signal S1, by image frame
Delay time foreshorten to 14.6 milliseconds, and projection arrangement 100 can be met and be applied to display such as the high picture of game picture needs
The demand of turnover rate.
Fig. 4 is the flow chart according to the projecting method of the projection arrangement of the embodiments of the present invention.By above-described embodiment
It is found that the projecting method of projection arrangement can include at least the following steps.First, it is determined that picture update rate (the step of vision signal
S402), the parsing of projection image caused by spatial light modulation circuit is then controlled according to the picture update rate of vision signal again
Degree and picture update rate (step S404).Such as spatial light modulation circuit can be controlled according to the picture update rate of vision signal and incited somebody to action
Projection image is adjusted to the first resolution and the first picture update rate or projection image is adjusted to have the second parsing
Degree and the second picture update rate, wherein the first resolution is greater than the second resolution or the first picture update rate less than second
Picture update rate.
For example, as shown in figure 5, can determine whether that the picture update rate of vision signal is the first default picture update rate or the
Two default picture update rates (step S502), wherein the first default picture update rate is less than the second default picture update rate.If depending on
The picture update rate of frequency signal is the first default picture update rate, and control circuit controls spatial light modulation circuit for projection image's tune
Whole is with the first resolution and the first picture update rate (step S504).And if the picture update rate of vision signal is second
Default picture update rate, control circuit control spatial light modulation circuit and are adjusted to have the second resolution and for projection image
Two picture update rates (step S506).Furthermore, it is understood that spatial light modulation circuit may include optical actuator, by according to video
Projection image, can be adjusted to have the first resolution and first by the swing of the picture update rate control optical actuator of signal
Projection image is adjusted to have the second resolution and the second picture update rate by picture update rate.Wherein, the first default picture
Face turnover rate and the first picture update rate may be, for example, 60Hz, and the second default picture update rate and the second picture update rate can
For example, 240Hz, the first resolution may be, for example, 4096 × 2160 pixels, and the second resolution may be, for example, 1920 × 1080 pictures
Element is so not limited.
In conclusion picture update rate of the embodiments of the present invention using control circuit according to vision signal adjusts sky
Between projection image caused by light modulation circuit resolution and picture update rate, adjusted with corresponding to the use demand of user
The projection mode of whole projection arrangement, and effectively increase the usage mode of projection arrangement.
The above, the only preferred embodiment of the utility model are implemented when that cannot limit the utility model with this
Range, i.e., it is all according to simple equivalence changes made by the utility model claims book and utility model description with repair
Should, all still belong to the utility model patent covering in the range of.In addition, any embodiment or claim of the utility model are not necessary to
Reach whole purposes or advantage or feature disclosed by the utility model.In addition, abstract and utility model title be intended merely to it is auxiliary
It helps patent document retrieval to be used, not is used to limit the interest field of the utility model.Furthermore referred in specification first,
Second ... etc., it is only used for indicating the title of element, is not used to the quantitative upper limit of restriction element or lower limit.
Claims (7)
1. a kind of projection arrangement, which is characterized in that the projection arrangement includes:
Picture update rate converts chip, carries out picture update rate conversion to the first vision signal and generates the second vision signal；
Spatial light modulation circuit；And
Control circuit couples the picture update rate conversion chip and the spatial light modulation circuit, according to second view
The picture update rate of frequency signal adjusts the resolution and frame updating of projection image caused by the spatial light modulation circuit
Rate.
2. projection arrangement according to claim 1, which is characterized in that wherein the control circuit is according to second video
The picture update rate of signal control the spatial light modulation circuit by the projection image be adjusted to have the first resolution and
The projection image is adjusted to have the second resolution and the second picture update rate by the first picture update rate, wherein described
First resolution is greater than second resolution, and first picture update rate is less than second picture update rate.
3. projection arrangement according to claim 2, which is characterized in that wherein the control circuit judges second video
The picture update rate of signal is the first default picture update rate or the second default picture update rate, wherein the first default picture
Turnover rate is less than the described second default picture update rate, if the picture update rate of second vision signal is described first default
Picture update rate, the control circuit control the spatial light modulation circuit and the projection image are adjusted to have described first
Resolution and first picture update rate, if the picture update rate of second vision signal is the described second default picture
Turnover rate, the control circuit control the spatial light modulation circuit and the projection image are adjusted to have second parsing
Degree and second picture update rate.
4. projection arrangement according to claim 3, which is characterized in that wherein the described first default picture update rate and institute
Stating the first picture update rate is 60Hz, and the second default picture update rate and second picture update rate are 240Hz, institute
Stating the first resolution is 4096 × 2160 pixels, and second resolution is 1920 × 1080 pixels.
5. projection arrangement according to claim 2, which is characterized in that the spatial light modulation circuit includes:
Spatial modulator couples the control circuit, is modulated to light beam, and generates modulation light beam；And
Optical actuator couples the control circuit, picture update rate of the control circuit according to second vision signal
The projection image is adjusted to have first resolution and described first by the swing for controlling the optical actuator
The projection image is adjusted to have second resolution and second picture update rate by picture update rate.
6. projection arrangement according to claim 5, which is characterized in that wherein the control circuit includes:
Chip is controlled, the picture update rate conversion chip is coupled, the picture update rate according to second vision signal controls
The swing of the optical actuator, and second vision signal is divided into the first sub-video signal and the second sub-video letter
Number；
First image processing circuit generates the first video signal according to the first sub-video signal；And
Second image processing circuit generates the second video signal, first video signal according to the first sub-video signal
With second video signal for being transferred to the spatial modulator.
7. projection arrangement according to claim 1, which is characterized in that wherein the control circuit is according to second video
The picture update rate of signal control the spatial light modulation circuit by the projection image be adjusted to have the first resolution and
The projection image is adjusted to have the second resolution and the second picture update rate by the first picture update rate, wherein described
First picture update rate is less than second picture update rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821571435.1U CN208903641U (en) | 2018-09-26 | 2018-09-26 | Projection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821571435.1U CN208903641U (en) | 2018-09-26 | 2018-09-26 | Projection arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN208903641U true CN208903641U (en) | 2019-05-24 |
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| CN201821571435.1U Active CN208903641U (en) | 2018-09-26 | 2018-09-26 | Projection arrangement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110956910A (en) * | 2018-09-26 | 2020-04-03 | 中强光电股份有限公司 | Projection device and projection method thereof |
| CN114974149A (en) * | 2021-02-19 | 2022-08-30 | 瑞昱半导体股份有限公司 | Control circuit and control method applied to display panel |
-
2018
- 2018-09-26 CN CN201821571435.1U patent/CN208903641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110956910A (en) * | 2018-09-26 | 2020-04-03 | 中强光电股份有限公司 | Projection device and projection method thereof |
| CN114974149A (en) * | 2021-02-19 | 2022-08-30 | 瑞昱半导体股份有限公司 | Control circuit and control method applied to display panel |
| CN114974149B (en) * | 2021-02-19 | 2024-05-03 | 瑞昱半导体股份有限公司 | Control circuit and control method applied to display panel |
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