CN109389911A - A kind of design method of light field display screen - Google Patents
A kind of design method of light field display screen Download PDFInfo
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- CN109389911A CN109389911A CN201710655460.1A CN201710655460A CN109389911A CN 109389911 A CN109389911 A CN 109389911A CN 201710655460 A CN201710655460 A CN 201710655460A CN 109389911 A CN109389911 A CN 109389911A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
Abstract
System of the present invention provides a kind of design method of light field display screen, the following steps are included: being provided with s × t pixel unit on display screen, all pixel units are all distributed in x/y plane, each pixel unit includes the pixel of v three-dimensional distribution, each pixel has independent display structure, the light shooting angle of each pixel is all different in same pixel unit, and the light source of display screen is rgb light emitting source, and each pixel of display screen all meets following formula: The present invention is broken up the conventional pixel point in traditional display screen again, angle variables are increased to the design of pixel, same pixel unit shows different images in different angles, i.e. user can obtain different images from display screen under different viewing angles, the authenticity of display effect is strong, and the visual experience of user is good.
Description
Technical field
The present invention relates to field of display screens, specifically disclose a kind of design method of light field display screen.
Background technique
Existing pixels of display screen meets expression formula: Lpixel[p(xm,yn)]=Lrgb[r(xm,yn),g(xm,yn),b(xm,
yn)], wherein 1≤m≤M, 1≤n≤N, M, N are respectively maximum transversal location of pixels and the longitudinal maximum pixel position of display screen
It sets, m, n are the horizontal axis coordinate and ordinate of orthogonal axes of display screen, and L indicates the set of color and luminance information, and p represents pixel (m, n)
Color and luminance information, r represents the luminance information of pixel (m, n) red scale, and g represents pixel (m, n) green cordinant
Luminance information, b represents the luminance information of pixel (m, n) blue color coordinates, xm,ynFor the corresponding picture position of pixel.Such as figure
1 show the partial schematic diagram of traditional monitor pixel distribution, there is 4 × 5 pixels, and each pixel includes one group of RGB
Light emitting source.
Traditional display screen be all it is as shown in Figure 1, conventional pixel point 11 is set on plane bottom plate 10, single tradition picture
Vegetarian refreshments 11 its light emitting angle each orientation isotropism, i.e., in 180 ° of half-plane, the Illuminant chromaticity of all angles and bright
Degree is consistent, i.e., from carrying out from which angle to display screen regardless of user, image obtained is almost identical, but
In real world, as long as the position of human eye slightly difference, image obtained is different, the display effect of traditional display screen
Authenticity is weaker, and the visual experience of user is lower.
Summary of the invention
Based on this, it is necessary to be directed to prior art problem, provide a kind of design method of light field display screen, to display screen image
The design of vegetarian refreshments increases the variable of angle, so that user can obtain different images, display effect under different viewing angles
Authenticity is strong.
To solve prior art problem, the present invention discloses a kind of design method of light field display screen, comprising the following steps:
It is provided with s × t pixel unit, installation space coordinate system xyz on a display screen, all pixel units are all distributed
In x/y plane, each pixel unit includes the pixel of v three-dimensional distribution, and each pixel has independent display structure,
The light shooting angle of each pixel is all different in same pixel unit, and the light source of display screen is rgb light emitting source, display screen
Each pixel all meets following formula:
Wherein, L indicates the set of color and luminance information, and p represents pixelColor and luminance information, r generation
Table pixelThe luminance information of red scale, g represent pixelThe luminance information of green cordinant, b are represented
PixelThe luminance information of blue color coordinates, xm,ynFor the position of pixel in the plane,θjFor the pixel space of points
The position of angle.
Further, retina screen is set, and the relationship of two neighboring pixel and pupil of human is full in same pixel unit
Sufficient following formula:
(d/R) × (180/ π) < 1/60
The spacing that two neighboring pixel is arranged meets following formula:
D < (R/60) × (π/180)
R is distance of exit pupil, and d is the spacing of two neighboring pixel in same pixel unit.
Further, the left and right pupil that human eye is arranged obtains two pixels of same pixel unit, same pixel unit
In the relationship of two pixels and pupil of human meet following formula:
α < (p/u) × (180/ π)
α is the optical axis included angle of two neighboring pixel emergent light in same pixel unit, p be people's eye pupil away from, u be observation away from
From.
Further, the optical axis included angle of two neighboring pixel emergent light is α in same pixel unit, and α≤π/k, k are represented
The pixel number being arranged in y-axis or x-axis in same pixel unit.
Further, the optical axis included angle in same pixel unit between maximum two pixels of angle difference is less than or equal to
180°。
Further, pixel unit is hemispherical, and pixel constitutes the spherical surface of pixel unit.
Further, rgb light emitting source is rgb light emitting diode.
The invention has the benefit that the present invention discloses a kind of design method of light field display screen, it will be in traditional display screen
Conventional pixel point broken up again, if conventional pixel point be pixel unit, pixel unit break up again after obtain the present invention in
Pixel increases angle variables to the design of pixel, so that the different pixels point in same pixel unit is possessed different light and go out
In each azimuthal anisotropy of light emitting angle, same pixel unit shows not in different angles for firing angle degree, i.e. pixel
Same image, user can obtain the different pixels point in same pixel unit under different viewing angles, i.e., user is different
Different images can be obtained under visual angle from display screen, the authenticity of display effect is strong, the picture shown down to a certain degree
The effect mixed the spurious with the genuine can be obtained, the visual experience of user is good, can satisfy the demand in market.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional display screen.
Fig. 2 is the coordinate schematic diagram of pixel in the present invention.
Fig. 3 is the display screen structure schematic diagram that the embodiment of the present invention one obtains.
Fig. 4 is the structural schematic diagram of pixel unit in the embodiment of the present invention one.
Fig. 5 is the structural schematic diagram of pixel unit in the embodiment of the present invention two.
Fig. 6 is the structural schematic diagram of pixel unit in the embodiment of the present invention three.
Appended drawing reference are as follows: plane bottom plate 10, conventional pixel point 11, pixel unit 20, half ball seat 21, arc rgb light emitting source
211, pixel 22, small-sized rgb light emitting source 221, light restraining structure 222, intensity control element 223.
Specific embodiment
To further understand the features of the present invention, technological means and specific purposes achieved, function, below with reference to
Present invention is further described in detail with specific embodiment for attached drawing.
Referring to figs. 1 to Fig. 6.
The present invention discloses a kind of design method of light field display screen, comprising the following steps:
It is provided with s × t pixel unit 20 on a display screen, installation space coordinate system xyz, all pixel units 20 are all
It is distributed in x/y plane, each pixel unit 20 includes the pixel 22 of v three-dimensional distribution, it is preferable that pixel unit 20 is in half
Spherical shape, pixel 22 constitute the spherical surface of pixel unit 20；Each pixel 22 has independent display structure, same pixel unit
The light shooting angle of each pixel 22 is all different in 20, and the light source of display screen is rgb light emitting source, it is preferable that rgb shines
Source is rgb light emitting diode, and each pixel 22 of display screen all meets following formula:
Wherein, L indicates the set of color and luminance information, and p represents pixelColor and luminance information, r
Represent pixelThe luminance information of red scale, g represent pixelThe brightness of green cordinant is believed
Breath, b represent pixelThe luminance information of blue color coordinates, xm,ynFor the position of pixel 22 in the plane, i.e. picture
The transverse and longitudinal coordinate of vegetarian refreshments 22,θjFor the position of 22 space angle of pixel, as shown in Fig. 2,For origin to pixel 22
The angle of projection and z-axis of the line in zy plane, θjFor origin to the line of pixel 22 and the angle of x-axis.
The above method is broken up the conventional pixel point 11 in traditional display screen again, if conventional pixel point is pixel unit
20, pixel unit 20 obtains the pixel 22 in the present invention after breaking up again, increases angle variables to the design of pixel 22, makes same
Different pixels point 22 in one pixel unit possesses different light shooting angles, i.e., pixel 22 is in each orientation of light emitting angle
Anisotropy, same pixel unit 20 show different images in different angles, and user can obtain under different viewing angles
The different pixels point 22 in same pixel unit 20 is obtained, i.e. user can obtain different from display screen under different viewing angles
The authenticity of image, display effect is strong, and the picture shown down to a certain degree can obtain the effect mixed the spurious with the genuine, and improves user
Visual experience, can satisfy the demand in market.
For the display effect for improving display screen, the resolution ratio of display screen is improved, is 1/60 degree according to the angular resolution of human eye,
Reach the limit of resolution of eye, retina screen is set, two neighboring pixel 22 and human eye pupil in same pixel unit 20
The relationship in hole meets following formula:
(d/R) × (180/ π) < 1/60
The spacing that two neighboring pixel 22 is arranged meets following formula:
D < (R/60) × (π/180)
R is distance of exit pupil, and d is the spacing of two neighboring pixel 22 in same pixel unit 20, and above formula setting is same
The spacing of each two neighboring pixel 22, can effectively improve the display effect of display screen in pixel unit 20.
Widely used current stereo display technique is non-naked eye 3D display technology, main to realize 3D by cooperation 3D glasses
The presentation of effect.And naked eye 3D display causes practical application fewer since technology is immature, real experiences are bad, it is existing
Naked eye 3D display technology provides comfortable angle of visibility very little, and user can only watch in limited angle, it is restricted compared with
By force；In addition, the image that existing naked eye 3D display technology is observed with different view is almost identical, and real world
In, as long as the position of human eye slightly difference, image obtained is different, the true effect of existing naked eye 3D display technology
It is poor, it is unable to reach real 3D effect.
To obtain naked eye 3D effect, the left and right pupil that human eye is arranged obtains two pixels 22 of same pixel unit 20,
The relationship of two pixels 22 and pupil of human meets following formula in same pixel unit 20:
α < (p/u) × (180/ π)
α is the optical axis included angle of two neighboring 22 emergent light of pixel in same pixel unit 20, and p is people's eye pupil away from u is to see
Ranging from.The left and right pupil of human eye can obtain two pixels 22 different in same pixel unit 20, i.e., each picture respectively
Plain unit 20 can bring the effect of naked eye 3D to user, and the angle of visibility of user is big, can obtain from all angles naked
Eye 3D effect, the true effect of naked eye 3D display are strong.
To reduce production cost in the case where not influencing display effect, display screen is arranged perpendicular to horizontal plane for user
In use, pixel 22 in pixel unit 20 is upper only in horizontal direction to carry out angular divisions, due to the eyes horizontal tectonics of people,
And the metastable section of average adult's height is 1.5-1.8m, this means that the height of human eye is relatively stable, horizontal direction
Visual angle becomes the principal element for influencing display effect, carries out the angular divisions in horizontal direction only for pixel 22, i.e., same
The angle θ of all pixels point 22 is all identical in pixel unit 20, can simplify institute of the present invention in the case where not influencing display effect
The structure for obtaining display screen reduces production cost.
Since the indication range of display screen is generally in 180 °, maximum two pictures of angle difference in same pixel unit 20
Angle is less than or equal to 180 ° between the optical axis of the issued light of vegetarian refreshments 22, and two neighboring pixel 22 is emitted in same pixel unit 20
The optical axis included angle of light is α, and α≤π/k, k represent the number for the pixel 22 being arranged in y-axis in same pixel unit 20 or x-axis.Most
Excellently, angle is equal between the optical axis of the issued light of maximum two pixels 22 of angle difference in same pixel unit 20
180 °, α=π/k.
Embodiment one is set as shown in figure 3, designing the pixel 22 of display screen with the inventive method in plane bottom plate 10
There are 4 × 5 pixel units 20, be illustrated in figure 4 the schematic diagram of the section structure of the present embodiment pixel unit 20, pixel unit 20 wraps
Half ball seat 21 is included, the planar section of half ball seat 21 is fixedly connected with plane bottom plate 10, if the hemisphere face part of half ball seat 21 is equipped with
Dry pixel 22, the spacing of two neighboring pixel 22 are d, and d < (R/60) × (π/180) are arranged, and pixel 22 includes small-sized
Rgb light emitting source 221, light restraining structure 222, it is preferable that light restraining structure 222 is the cone of both ends connection, small-sized rgb
Light emitting source 221 is fixed in one end of light restraining structure 222, and the light that small-sized rgb light emitting source 221 issues is from light restraining structure
222 other end issues, and light restraining structure 222 is fixed on half ball seat 21 close to one end of small-sized rgb light emitting source 221
On, the angle between the optical axis of the issued light of two neighboring light restraining structure 222 is α, α < (p/u) × (180/ π) is set,
When display screen is arranged perpendicular to horizontal plane, user can obtain in same pixel unit 20 in horizontal and vertical each position
The image of different pixels point 22.The light that different small-sized rgb light emitting sources 221 issues in the present embodiment is different, thus different pictures
Vegetarian refreshments 22 shows different images, and the high resolution of display screen, has naked eye 3D effect, and the angle of visibility of naked eye 3D is big.
Embodiment two designs the pixel 22 of display screen with the inventive method, is equipped with s × t picture in plane bottom plate 10
Plain unit 20, as shown in figure 5, being the schematic diagram of the section structure of the present embodiment pixel unit 20, pixel unit 20 includes whirler
Structure 23, the rotating part of rotating mechanism 23 are fixed with small-sized rgb light emitting source 221, are arranged with light about outside small-sized rgb light emitting source 221
Binding structure 222, light restraining structure 222 are the cone of both ends connection, and the light that small-sized rgb light emitting source 221 issues passes through light
Restraining structure 222 is emitted at an angle, and rotating mechanism 23 is that an angular unit rotates with α, α < (p/u) × (180/
π), one α angle of the every rotation of rotating mechanism 23, forms a pixel 22, while the initial position of rotating mechanism 23 is also one
A pixel 22 reduces production cost for the structure for simplifying display screen, and rotating mechanism 23 need to only be rotated along x-axis, can effectively be dropped
The production cost and production difficulty of low display screen.The present embodiment lights same picture in time-multiplexed method in different times
Different pixel 22 in plain unit 20, different pixels 22 show different images, and Yao Shixian user is from different angles
Degree, which carries out observation, can obtain the image of different pixels point 22 in same pixel unit 20, and the speed of rotating mechanism 23 will foot
Enough height, time consumed by 180 ° of rotation of setting rotating mechanism 23 are less than or equal to 0.1s.
Embodiment three designs the pixel 22 of display screen with the inventive method, is equipped with s × t picture in plane bottom plate 10
Plain unit 20, as shown in fig. 6, being the schematic diagram of the section structure of the present embodiment pixel unit 20, pixel unit 20 includes arc rgb
Light emitting source 211, the longitudinal section of arc rgb light emitting source 211 are semicircular arc, and the light-emitting surface of arc rgb light emitting source 211 is equipped with several
Pixel 22, pixel 22 include light restraining structure 222, intensity control element 223, it is preferable that light restraining structure 22 is
Cone, the intensity control element 223 of both ends connection are liquid crystal valve, and arc rgb hair is fixed in 22 one end of light restraining structure
The other end of light source 211, arc rgb light emitting source 211 is fixedly connected with intensity control element 223, due to the horizontal structure of the eyes of people
It makes, under normal circumstances, the height of human eye is relatively stable, for the structure for simplifying display screen, reduces production cost, same pixel unit
The angle θ of all pixels point 22 is all identical in 20, and being produced into for display screen can be effectively reduced in the case where ensuring display effect
Sheet and production difficulty.The present embodiment controls the light issued from light restraining structure 22, different pictures by intensity control element 223
Vegetarian refreshments 22 shows different images, so that difference in same pixel unit 20 can be obtained by observing user from different angles
The image of pixel 22, to for bringing true visual experience.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (7)
1. a kind of design method of light field display screen, which comprises the following steps:
It is provided with s × t pixel unit, installation space coordinate system xyz on a display screen, all pixel units are all distributed in xy
Plane, each pixel unit include the pixel of v three-dimensional distribution, and each pixel has independent light emitting display structure,
The light shooting angle of each pixel is all different in same pixel unit, and the light source of display screen is rgb light emitting source, display screen
Each pixel all meets following formula:
Wherein, L indicates the set of color and luminance information, and p represents pixelColor and luminance information, r represents picture
Vegetarian refreshmentsThe luminance information of red scale, g represent pixelThe luminance information of green cordinant, b represent pixel
PointThe luminance information of blue color coordinates, xm,ynFor the position of pixel in the plane,θjFor pixel space angle
Position.
2. a kind of design method of light field display screen according to claim 1, which is characterized in that setting retina screen, together
The relationship of two neighboring pixel and pupil of human meets following formula in one pixel unit:
(d/R) × (180/ π) < 1/60
The spacing that two neighboring pixel is arranged meets following formula:
D < (R/60) × (π/180)
R is distance of exit pupil, and d is the spacing of two neighboring pixel in same pixel unit.
3. a kind of design method of light field display screen according to claim 1, which is characterized in that the left and right pupil of human eye is arranged
Hole obtains two pixels of same pixel unit, in same pixel unit the relationship of two pixels and pupil of human meet with
Lower expression formula:
α < (p/u) × (180/ π)
α is the optical axis included angle of two neighboring pixel emergent light in same pixel unit, and p is people's eye pupil away from u is observed range.
4. a kind of design method of light field display screen according to claim 1, which is characterized in that phase in same pixel unit
The optical axis included angle of adjacent two pixel emergent lights is α, and α≤π/k, k represent the picture being arranged in y-axis in same pixel unit or x-axis
Vegetarian refreshments number.
5. a kind of design method of light field display screen according to claim 1, which is characterized in that angle in same pixel unit
The optical axis included angle spent between maximum two pixels of difference is less than or equal to 180 °.
6. a kind of design method of light field display screen according to claim 1, which is characterized in that pixel unit is in hemisphere
Shape, pixel constitute the spherical surface of pixel unit.
7. a kind of design method of light field display screen according to claim 1, which is characterized in that rgb light emitting source is rgb hair
Optical diode.
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