CN105163100A - Laser display system and laser display method - Google Patents
Laser display system and laser display method Download PDFInfo
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Abstract
The invention discloses a laser display system and a laser display method. According to the system, an aspect ratio of an integrated display image is as follows: tan (thetaW/2)/tan (thetaH/2), wherein the thetaW expresses a horizontal coverage angel of a split vision view field of a human eye and the thetaH expresses a longitudinal coverage angle of a split vision view field of a human eye. With the system and method, display of the split vision view field of the human eyes can be realized.
Description
Technical field
The present invention relates to laser display field.More specifically, a kind of laser display system and laser display method is related to.
Background technology
TV, color monitor have become modern life necessity, particularly the large-screen home theater of rising in recent years has become the hot product that people pursue, due to huge market potential and the profit of this series products, each state be all devoted to development high definition and large-screen home theater to meet the demand of people to the continuous renewal of this product, such as: large screen plasma body home theater (PDP), liquid crystal flat-panel home theater (LCD) etc.But display systems all at present, comprises large-screen household audio and video system, all there is image frame frame on human eye vision.Deposit in case at image frame frame, no matter how Content addressable network changes, even if use existing 3D technology, people still just at the image frame of viewing activity, are difficult to stay among image frame, produce the interaction of soul.Films and television programs want to move spectators, most importantly spectators will be allowed exactly to have a kind of sensation experienced personally.If spectators can incorporate in the environment set by works, produce interaction with the plot of works, then can produce the communication in soul, on one's own initiative with the personage in plot, scene mutual exchange and effect, to reach higher level enjoyment.But current existing display system, existing in the system of frame at image frame, is be difficult to reach above-mentioned effect.If the display that a kind of display system realizes Rimless can be designed, namely the display system of human eye remaining light visual field is realized, be presented in spectators at the moment be no longer live image picture with frame, but in the environment that spectators can be led to enter set by image frame, produce the sensation of being personally on the scene, in the soul of spectators is incorporated plot that works bring, produce the higher boundary of body and mind blending, really enter virtual reality world, thus the Sheng enjoying vision in high level is offered to.
From physiology and the physical viewpoint of human eye, the clear visual field of people's eyes refers to human eye laterally 35 ° and longitudinal 20 ° of regions contained.Generally speaking, reflect the image on human eye retina, in the clear visual field of people's eyes, spectators can see the existence of object at once clearly and have what action.Being referred to as human eye remaining light visual field horizontal 120 ° of people's eyes with longitudinal 60 ° of regions contained, is the maximum region that people's eyes can be contained.If people are in certain sighting distance of display device, the size of picture exceedes the remaining light visual field of human eye, then spectators will visually not observe the frame of image frame, namely produces the remaining light visual field of Rimless.At the image frame of this activity of viewing, people enter in the environment that image frame provides seemingly, place oneself in the midst of among image frame, incorporate in plot.
According to statistics for flat panel display, people's the best view and admire distance, resolution and screen-picture height three meet correlation formula: the best is viewed and admired apart from (centimetre)=screen height ÷ vertical resolution × 3400.It is different and different that above-mentioned relation complies with watched programme signal.TV programme divides by definition can be divided into SD and high definition.High-definition program, is mainly divided into 1280 × 720 and 1920 × 1080 Resolutions, is called that 720P and 1080P is full HD, certainly also has 1366 × 768, the resolution such as 1080i.Wherein 1366 × 768 resolution are the resolution of small size LCD TV, and the rare this resolution of high-definition program.Current 1080P is full HD becomes main flow, and in fact 1920 × 1080 have become the unified standard in the whole world, are commonly called as 2K definition.For the display device of 2K definition, the best observation sighting distance of people is 1.7 meters.And in 1.7 meters of best observation sighting distances, the observation realizing human eye remaining light visual field then requires that picture screen should at 5890mm × 1960mm, i.e. the screen of 240 inches.Contrast the panel TV of current 42 inches, screen size is only 954mm × 568mm.The panel TV of current corresponding 2K definition, no matter be plasma system or liquid crystal system, from technological angle, now and all can not realize the making of the screen size of 240 inches in the future.No matter be plasma display systems simultaneously, or all there is different colour temperature in liquid crystal display systems, so utilize multiple stage to realize the assembled system of device, the difference of the color of each sub-screen can be produced, thus can not be formed seamless spliced with the picture forming unified colour temperature completely.So current existing household audio and video system can not realize human eye remaining light visual field.
Therefore, need to provide a kind of laser display system and laser display method, realize human eye remaining light visual field.
Summary of the invention
The object of the present invention is to provide a kind of laser display system and laser display method, realize the display of human eye remaining light visual field.
For achieving the above object, the present invention adopts following technical proposals:
A kind of laser display system,
The ratio of width to height of the entirety display image of this system is:
In formula, θ
wfor the transverse direction of human eye remaining light visual field contains angle, θ
hfor the longitudinal direction of human eye remaining light visual field contains angle.
Preferably, this system comprises: fused controlling device and at least two laser display apparatus, described fused controlling device carries out Fusion Edges to the display image that each laser display apparatus penetrates, thus the display image co-registration penetrated by each laser display apparatus is overall display image, described entirety display image is of a size of:
W＝tan(θ
W/2)*L*2
H＝tan(θ
H/2)*L*2；
In formula, the lateral length of W entirety display image, H is the longitudinal length of overall display image, and L is sighting distance.
Preferably, the transverse direction of described human eye remaining light visual field contains angle θ
wbe about 120 °, the longitudinal direction of described human eye remaining light visual field contains angle θ
hbe about 60 °.
Preferably, described entirety display image is the full HD image of 1080P, and described sighting distance L is 1.7 meters.
Preferably, described laser display apparatus comprises:
Red laser module, green (light) laser module and blue laser module;
Collimating and correcting module, the eliminating coherence device of order setting respectively on the output light path of described red laser module, green (light) laser module and blue laser module; And
The light valve arranged in the light path thereafter of described red laser module, green (light) laser module and blue laser module respectively, and beam merging apparatus three beams of laser bundle being closed bundle; Or
The beam merging apparatus for the three light beams of described red laser module, green (light) laser module and blue laser module being carried out combiner of order setting thereafter, and light valve; And
For the imaging lens of imaging.
Preferably, described light valve is 2K light valve.
A kind of laser display method, the ratio of width to height of the entirety display image of laser imaging is:
In formula, θ
wfor the transverse direction of human eye remaining light visual field contains angle, θ
hfor the longitudinal direction of human eye remaining light visual field contains angle.
Preferably, the method comprises:
By image to be displayed frame imaging;
Utilize fusion method by each width image co-registration for entirety shows image, described entirety display image is of a size of:
W＝tan(θ
W/2)*L*2
H＝tan(θ
H/2)*L*2；
In formula, W, H are respectively lateral length, the longitudinal length of overall display image, and L is sighting distance.
Preferably, the transverse direction of described human eye remaining light visual field contains angle θ
wbe about 120 °, the longitudinal direction of described human eye remaining light visual field contains angle θ
hbe about 60 °.
Beneficial effect of the present invention is as follows:
Technical scheme of the present invention adopts the tricolor laser diode (led) module of adjustable color control as LASER Light Source.By regulating the power of red, green, blue tricolor laser device, the colour temperature realizing display regulates, and can be used for the fields such as Large Screen Laser Display is seamless spliced, thus realizes the display of human eye remaining light visual field.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 illustrates the schematic diagram of human eye linear resolution.
Fig. 2 illustrates the schematic diagram of the laser display system that embodiment 1 provides.
Fig. 3 illustrates the schematic diagram of the laser display system that embodiment 2 provides.
Embodiment
In order to be illustrated more clearly in the present invention, below in conjunction with preferred embodiments and drawings, the present invention is described further.Parts similar in accompanying drawing represent with identical Reference numeral.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive, should not limit the scope of the invention with this below.
As shown in Figure 1, in Fig. 1, d=L* θ, θ are human eye resolution angle, and L is sighting distance, and d is that human eye differentiates dot spacing, the clear visual field of people's eyes: laterally about 35 °, longitudinally about 20 °; People's eyes remaining light visual field: be laterally about 120 °, longitudinally about 60 °; Human eye resolution angle: ~ 1 '.If under the condition of the 2K definition of main flow, and at 1.7 meters of best viewing sighting distance places, if display screen is greater than 5890mm × 1960mm, then will realize human eye remaining light visual field.And in the viewing of 1.7 meters of optimum viewing distances, demand fulfillment two prerequisites: first display screen can not produce injury to human eye, it two is the resolution that definition will reach human eye viewing.The brightness of previous conditional decision screen luminescence can not injure human eye, and second condition is that the screen being greater than 5890mm × 1960mm size will reach high definition simultaneously, and this needs screen definition more than 7K.It can only be laser display system that these two prerequisites determine the system that can realize the display of human eye remaining light visual field.Because laser display system adopts projection display, screen is passive luminescence, under 1.7 meters of best image sighting distances, clear picture and brightness soft to human eye viewing do not produce any injury, and laser display can realize the seamless spliced of the colourless temperature difference, therefore the seamless spliced of high definition the small screen can be realized, thus realize the display of human eye remaining light visual field.
Therefore, laser display system provided by the invention utilizes laser display apparatus to merge, and realizes human eye remaining light visual field.
Laser display system provided by the invention, the ratio of width to height of the entirety display image of this system is:
In formula, θ
wfor the transverse direction of human eye remaining light visual field contains angle, θ
hfor the longitudinal direction of human eye remaining light visual field contains angle.
The entirety display image of the laser display of above-mentioned the ratio of width to height can realize the display of human eye remaining light visual field.
According to the present invention, this laser display system comprises:
Fused controlling device and at least two laser display apparatus, laser display apparatus is for showing picture frame, fused controlling device carries out Fusion Edges to each picture frame, by the power ratio of adjustment laser red, green, blue three primary colors, realize the seamless spliced of the colourless temperature difference, thus the picture frame that each laser display apparatus penetrates is fused to general image shows, the size of overall display image is at least:
W＝tan(θ
W/2)*L*2
H＝tan(θ
H/2)*L*2；
In formula, W, H are respectively lateral length, the longitudinal length of image, θ
w, θ
hbe respectively the horizontal, longitudinal of human eye remaining light visual field and contain angle, L is sighting distance.
The several laser display apparatus of concrete selection is used for picture frame display and depends on that formation meets remaining light field size and requires overall display image needs and determine.
According to physiology and the physical research of human eye, the transverse direction of human eye remaining light visual field contains angle θ
wbe 120 °, the longitudinal direction of described human eye remaining light visual field contains angle θ
hit is 60 °.
Under realizing the full HD condition of the 1080P of main flow, display image and overall display image are the full HD image of 1080P, and optimum viewing distance L is 1.7 meters, and general image is of a size of lateral length and is more than or equal to 5890mm, and longitudinal length is more than or equal to 1960mm.
According to the present invention, include for each laser display apparatus showing picture frame:
Red laser module, green (light) laser module, blue laser module, collimating and correcting module, eliminating coherence device, combiner device, light valve, imaging lens,
Equal subsequent application collimating and correcting module and eliminating coherence device on the output light path of red laser module, green (light) laser module and blue laser module; First three beams of laser after the process of described eliminating coherence device passes through the light valve in self light path, then carries out combiner, or first carries out combiner, then enters same light valve, by a described imaging lens injection framing display image.
In each framing display image, when RGB tricolor laser chromaticity coordinates is (x
r, y
r), (x
g, y
g), (x
b, y
b), brightness is L respectively
r, L
g, L
b, then tristimulus values is
Y＝L
According to this formula, tricolor laser tristimulus values X can be calculated
r, X
g, X
b, Y
r, Y
g, Y
b, Z
r, Z
g, Z
b.According to colour mixture principle, secondary colour tristimulus values is
X＝X
R+X
G+X
B
Y＝Y
R+Y
G+Y
B
Z＝Z
R+Z
G+Z
B
Therefore, secondary colour tristimulus values can be write as
Y＝L
R+L
G+L
B
According to chromaticity coordinate
According to x+y+z=1, calculate target color coordinates (x, y),
According to above formula, known D65 chromaticity coordinate (0.3127,0.3291), people just can by controlling tricolor laser brightness L
r, L
g, L
bcontrol white colour temperature point.Otherwise, by solving an equation, also can in the hope of three primary colors proportion relation in different-colour situation.By adjusting the chromaticity coordinate of each sub-screen, control laser display, the colour temperature that can obtain each sub-screen is completely the same, and form seamless link, color is homogeneous, without the complete image of vision difference.
Laser display apparatus adopts red-green-blue laser device laser as three primary light source, according to above-mentioned principle, the clear visual field of laser display system can be extended to remaining light visual field, realizes Rimless display on the spot in person; Laser easily realizes the more high brightness in visually-perceptible district in addition, the display of the such as above brightness of 100 nit, therefore can realize large-screen and the over-large screen display system of high-contrast under higher ambient brightness
According to a preferred embodiment of the invention, in each laser display apparatus, the wave-length coverage that red laser module exports is 635nm-670nm; The wave-length coverage that green (light) laser module exports is 515nm-530nm; The wave-length coverage that blue laser module exports is 440nm-460nm.
According to a preferred embodiment of the invention, each laser display apparatus also comprises temperature control module and three radiating modules; Red laser module, green (light) laser module and blue laser module are separately fixed on radiating module; Temperature control module controls the heat dissipation capacity of described three radiating modules respectively, thus controls the wavelength of institute's Emission Lasers.The wavelength of semiconductor laser module under specific power output, particularly relatively high power can be regulated by control temperature by temperature control module.
Red laser module at least comprises a red light semiconductor laser unit, and the centre wavelength of each laser element is variant and their combination can cover the wave-length coverage that red laser module exports; Green (light) laser module at least comprises a green (light) laser unit, and the centre wavelength of each green (light) laser unit is variant and their combination can cover the wave-length coverage that green (light) laser module exports; Blue laser module at least comprises a blue laser unit, and the centre wavelength of each blue laser unit is variant and their combination can cover the wave-length coverage that described blue laser module exports.
Each laser module is all preferably semiconductor laser module, and each laser element is preferably semiconductor laser element, and each laser element is preferably made up of semiconductor laser single tube or semiconductor laser array.
Laser display apparatus also comprises laser control module, laser control module can control the blue laser unit in the red laser unit in red laser module, the green (light) laser unit in green (light) laser module, blue laser module respectively, select the laser element of suitable centre wavelength in red, green, blue laser module to make it luminous according to the color requirements of display, thus make the chromatic triangle of formation cover corresponding color region; The color gamut that the corresponding chromatic triangle formed by the mutual wavelength combinations of red, green, blue laser element can be covered and the color gamut that laser display system provided by the invention can cover, obviously the chromatic triangle that formed than the red, green, blue tricolor laser of single wavelength of its color domain coverage ratio is large.
Combiner device, is specially X prism, TIR prism or space sequential beam merging apparatus.
According to a preferred embodiment of the invention, first three beams of laser after the process of described eliminating coherence device carries out combiner, then enter same light valve to show image, or sequentially pass through reflective membrane, light guide plate and liquid crystal panel with the three beams of laser after the process of eliminating coherence device and show image.
Light valve is 2K light valve, such as 2K transmission liquid crystal light valve, 2K reflective liquid crystal light valve or 2K digital micro-mirror.
Collimating and correcting module is such as non-spherical lens, post lens or spherical lens;
Eliminating coherence device is be such as micro-optical device, vibrations speculum, rotating wave plate, multimode fiber or optical beam scanner.
After adopting 2K light valve to set up above-mentioned laser display apparatus, utilize multiple laser display apparatus to show picture frame respectively, each picture frame merges through the splicing of fused controlling device, forms the seamless spliced large-size screen monitors that colour temperature is consistent, realizes the display of human eye remaining light visual field.
The invention provides a kind of laser display method realizing remaining light visual field, propose a kind of the ratio of width to height realizing the laser entirety display image of remaining light visual field, this ratio of width to height is
In formula, θ
wfor the transverse direction of human eye remaining light visual field contains angle, θ
hfor the longitudinal direction of human eye remaining light visual field contains angle.
The entirety of carrying out laser display with above-mentioned the ratio of width to height shows the display that image can realize human eye remaining light visual field.
This laser display method comprises step: utilize multiple laser display apparatus to show each picture frame shown for realizing remaining light visual field respectively, the framing display image co-registration that each laser display apparatus penetrates by fused controlling device is overall display image, and the size of this entirety display image is at least:
W＝tan(θ
W/2)*L*2
H＝tan(θ
H/2)*L*2；
In formula, W, H are respectively lateral length, the longitudinal length of overall display image, θ
w, θ
hbe respectively the horizontal, longitudinal of human eye remaining light visual field and contain angle, L is sighting distance.
Wherein
According to physiology and the physical research of human eye, the transverse direction of human eye remaining light visual field contains angle θ
wbe about 120 °, the longitudinal direction of human eye remaining light visual field contains angle θ
hbe about 60 °.
Under realizing the full HD condition of the 1080P of main flow, framing display image and overall display image are the full HD image of 1080P, optimum viewing distance L is 1.7 meters, and overall display image is of a size of lateral length and is more than or equal to 5890mm, and longitudinal length is more than or equal to 1960mm.
With two specific embodiments, laser display system provided by the invention is described further below.
Embodiment 1
As shown in Figure 2, the laser display system that this example provides is 240 inches of human eye remaining light visual field home theater display system, utilize 4 4K laser projections, adopt 2 × 2 layout arrangements, four laser projection white colour temperatures are realized consistent by computer control, thus realize no color differnece 8K resolution, 240 inches of home theater laser display systems, realize the display of human eye remaining light visual field.
Embodiment 2
As shown in Figure 3, the laser display system that this example provides is hemisphere 3D display system.Hemisphere curtain system really realizes full filed super large picture exhibition, and beholder both also can watch in the inside of hemisphere curtain in the viewing of the outside of hemisphere curtain, realized the display of human eye remaining light visual field.Can feel when participating in the cintest by the superpower of omnibearing experience dynamic hemisphere curtain image from hemisphere curtain is inner, people is placed oneself in the midst of among picture seemingly.In hemisphere curtain, beholder can depart from anaglyph spectacles completely and become stereoscopic vision with helmet-shaped, can produce the shock sense of high strength, spinning sensation and strong stimulation.Allow spectators can experience a kind of sensation of novelty from hemisphere curtain outside, a hemisphere face picture that is colorful, that rotate when playing dynamic menu, can be seen.
The laser projector system of the present embodiment carries out anastomosing and splicing by 5 laser projections and has shown, the display that this system controls whole large screen system by fused controlling device participates in splicing, and realized merging by 25 channel edge fusion devices, each sub-screen edge emergence anastomosing and splicing.Merge the Lights section and adopt concentrated temperature control-radiating mode.The light source of multiple stage laser projection can share a recirculated water cooling unit, by the unified circulating water flow controlling each light source of flow distributor, and by temperature sensor Real-Time Monitoring water temperature.All laser projections are undertaken unifying switching manipulation by the computer of control desk.
In this embodiment, every platform laser projection can adopt colour temperature, the continuously adjustable tricolor laser digital light of brightness, and adopt system automatic dynamic adjustment control system to regulate the colour temperature of each projecting apparatus and brightness, ensure the consistency of each fusion passage display colour temperature, brightness to greatest extent, colour temperature is adjusted to 6500K ~ 9300K.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all execution modes, every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (9)
1. a laser display system, is characterized in that,
The ratio of width to height of the entirety display image of this system is:
In formula, θ
wfor the transverse direction of human eye remaining light visual field contains angle, θ
hfor the longitudinal direction of human eye remaining light visual field contains angle.
2. laser display system according to claim 1, it is characterized in that, this system comprises: fused controlling device and at least two laser display apparatus, and the display image co-registration that each laser display apparatus penetrates by described fused controlling device is overall display image, and described entirety display image is of a size of:
W＝tan(θ
W/2)*L*2
H＝tan(θ
H/2)*L*2；
In formula, the lateral length of W entirety display image, H is the longitudinal length of overall display image, and L is sighting distance.
3. laser display system according to claim 1 and 2, is characterized in that, the transverse direction of described human eye remaining light visual field contains angle θ
wbe about 120 °, the longitudinal direction of described human eye remaining light visual field contains angle θ
hbe about 60 °.
4. laser display system according to claim 2, is characterized in that, described entirety display image is the full HD image of 1080P, and described sighting distance L is 1.7 meters.
5. laser display system according to claim 2, is characterized in that, described laser display apparatus comprises:
Red laser module, green (light) laser module and blue laser module;
Collimating and correcting module, the eliminating coherence device of order setting respectively on the output light path of described red laser module, green (light) laser module and blue laser module; And
The light valve arranged in the light path thereafter of described red laser module, green (light) laser module and blue laser module respectively, and beam merging apparatus three beams of laser bundle being closed bundle; Or
The beam merging apparatus for the three light beams of described red laser module, green (light) laser module and blue laser module being carried out combiner of order setting thereafter, and light valve; And
For the imaging lens of imaging.
6. laser display system according to claim 5, is characterized in that, described light valve is 2K light valve.
7. a laser display method, is characterized in that, the ratio of width to height of the entirety display image of laser imaging is:
In formula, θ
wfor the transverse direction of human eye remaining light visual field contains angle, θ
hfor the longitudinal direction of human eye remaining light visual field contains angle.
8. laser display method according to claim 7, it is characterized in that, the method comprises:
By image to be displayed frame imaging;
Utilize fusion method by each width image co-registration for entirety shows image, described entirety display image is of a size of:
W＝tan(θ
W/2)*L*2
H＝tan(θ
H/2)*L*2；
In formula, W, H are respectively lateral length, the longitudinal length of overall display image, and L is sighting distance.
9. the laser display method according to claim 7 or 8, is characterized in that, the transverse direction of described human eye remaining light visual field contains angle θ
wbe about 120 °, the longitudinal direction of described human eye remaining light visual field contains angle θ
hbe about 60 °.
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| CN105609027A (en) * | 2016-03-10 | 2016-05-25 | 杭州虹视科技有限公司 | Laser large screen display device for eliminating color temperature difference |
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