CN108020928B - 3 d display device - Google Patents
3 d display device Download PDFInfo
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- CN108020928B CN108020928B CN201610965003.8A CN201610965003A CN108020928B CN 108020928 B CN108020928 B CN 108020928B CN 201610965003 A CN201610965003 A CN 201610965003A CN 108020928 B CN108020928 B CN 108020928B
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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
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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Abstract
A kind of 3 d display device includes light source module, straight display module (Portrait Display Module) and first, second and third column lens array.Light source module is to provide multiple groups timing light according to multiple timing in light period.First column lens array is set in front of light source module.Second column lens array is set in front of the first column lens array.Straight display module is set in front of the second column lens array.By the secondary optics Fourier transform of the first, second column lens array, each group timing light will focus on each sub-portion of each pixel of straight display module respectively.Straight display module is to be respectively converted into multiple groups pixel light for the timing light for focusing to each pixel.Third column lens array is set in front of straight display module, pixel light is separately directed to multiple kens.
Description
Technical field
The present invention relates to a kind of 3 d display devices.
Background technique
Because left eye, with right eye position difference, the scene respectively observed also has subtle difference, this species diversity is
Relief basic reason is generated, 3D stereoscopic display is that the fine visual characteristic of eye is utilized to generate three-dimensional sense.
It is spatial reuse method that tradition, which reaches relief method, i.e., distributes multiple kens (View) in the pixel on screen
Information is assembled under ornamental distance through the spectrophotometric result of lens, generates multiple kens, and observer regards corresponding to two of them
Domain makes two to correspond to different images and reaches 3D visual effect.
In order to further improve every characteristic of 3D stereoscopic display, related fields is all painstakingly developed.How to mention
It is real to belong to one of current important research and development project for a kind of 3D stereoscopic display with preferable display effect, also become currently associated
Field needs improved target.
Summary of the invention
A technical aspect of the invention is to provide a kind of 3 d display device.3 d display device utilizes simple light
The effect of learning structure, just making 3 d display device generation time multiplexing method and spatial reuse method.
According to embodiment of the present invention, a kind of 3 d display device includes light source module, the first cylindrical lenses battle array
Column, the second column lens array, straight display module (Portrait Display Module) and third cylindrical lenses battle array
Column.Light source module is to provide multiple groups timing light according to multiple timing in light period.The setting of first column lens array
In front of light source module, advance guided the timing light from light source module respectively towards multiple directions group, wherein light
Source module is located on the focal plane of the first column lens array.Before second column lens array is set to the first column lens array
Side.Straight display module is set in front of the second column lens array, wherein straight display module is located at the second cylindrical lenses battle array
On the focal plane of column, straight display module includes multiple pixels, and each pixel includes multiple sub-portions, and the second column lens array is by court
The timing light of all directions group focuses to multiple groups focal zone respectively, and difference group focal zone corresponds respectively to different sub-portions,
The timing light for focusing to different groups of focal zones is respectively converted into multiple groups pixel light by straight display module.Third column is saturating
Lens array is set in front of straight display module, different groups of pixel light are separately directed to multiple kens.
In one or more embodiments of the invention, 3 d display device also has mutually perpendicular first direction
(for example, horizontal direction) and second direction (for example, vertical direction), wherein pixel along a first direction with second party
To arrangement, each pixel include different colours multiple sub-pixels, sub-pixel along second direction side by side, the first cylindrical lenses battle array
Column have multiple first cylindrical lenses, and the second column lens array has multiple second cylindrical lenses, third column lens array
With multiple third cylindrical lenses, for the long axis of the first cylindrical lenses perpendicular to first direction, the long axis of the second cylindrical lenses is vertical
In first direction, the long axis of third cylindrical lenses is inclined compared to first direction.
In one or more embodiments of the invention, straight display module is located at the focal plane of third column lens array
On.
In one or more embodiments of the invention, wherein the first column lens array has the first focal length, the
Each first cylindrical lenses have first segment away from the second column lens array has the second focal length, in a first direction on one direction
Upper each second cylindrical lenses have the second pitch, the ratio and first segment of the first focal length and the second focal length away from the second pitch
Ratio is identical.
In one or more embodiments of the invention, pixel has the first width, the first width in a first direction
Size be equal to the second pitch size.
In one or more embodiments of the invention, light source module includes multiple groups white light source.
In one or more embodiments of the invention, each first cylindrical lenses are divided into K portion along a first direction
Point, K part corresponds respectively to K group white light source.First column lens array is guiding K group timing light respectively towards K
A direction group advances, and each pixel includes K sub-portion, when the second column lens array is to by K group towards K direction group
Sequence light focuses to K group focal zone respectively, and K group focal zone corresponds respectively to K sub-portion.
In one or more embodiments of the invention, light source module includes multiple groups red light source, multiple groups green light source
With multiple groups blue-light source.
In one or more embodiments of the invention, each first cylindrical lenses are divided into 3K portion along a first direction
Point, 3K part corresponds respectively to K group red light source, K group green light source and K group blue-light source, and K group red light source, K group are green
Color light source and K group blue-light source form 3K group timing light in K timing.First column lens array is to by 3K group timing
Light guides respectively to advance towards 3K direction group.Each pixel includes K sub-portion, wherein each sub-portion includes red sub-pixel
Sub-portion, blue subpixels sub-portion and green sub-pixels sub-portion.Second column lens array is to will be towards the 3K of 3K direction group
Group timing light focuses to 3K group focal zone respectively, and 3K group focal zone corresponds respectively to K red sub-pixel sub-portion, K
Blue subpixels sub-portion and K green sub-pixels sub-portion.
In above embodiment of the present invention, by the first column lens array and the second column lens array to light source die
Difference provided by block organizes light and carries out optical fourier transform twice, and then each group light will focus on each group sub- picture respectively
Sub-prime portion.Because each group light is respectively to generate in the first timing and the second timing, each pixel can the first timing with
Second timing shows different pictures respectively, to make by converting the picture for focusing on each group light of each group sub-pixel sub-portion and being formed
Plain light shows different pictures.Because can be drawn respectively by third cylindrical lenses in the pixel light that each group sub-pixel sub-portion is formed
The different kens (because the setting position of each group sub-pixel sub-portion is different) are directed at, are formed by pixel light in the first timing
It will be guided by third column lens array to the different kens.For example, if there are two timing in total, and in the first timing institute
The pixel light of formation is guided by third column lens array to five kens, then is formed by pixel light meeting in the second timing
It is guided by third column lens array to other five kens.Therefore, in this example, observed by human eye is in each ken
To image resolution will be straight display module resolution ratio 1/5th, but 3 d display device but produces position
In the different images of ten kens.In other words, 3 d display device utilizes simple optical texture, just makes 3 d display device
Generation time is multiplexed the effect of method and spatial reuse method.Specifically, spatial reuse method keeps human eye observed in each ken
To image resolution be straight display module resolution ratio M/mono- in the case where generate be located at the M ken different shadows
Picture, time-multiplexed rule make the quantity of the ken become N times (quantity of N timing), that is, become the N × M ken.
Detailed description of the invention
Fig. 1 is the schematic top plan view according to the 3 d display device of an embodiment of the present invention.
Fig. 2 is to be shown according to the light source module of an embodiment of the present invention and the main view of a part of the first column lens array
It is intended to.
Fig. 3 is to be illustrated according to the vertical view of the optical path of the light source module and the first column lens array of an embodiment of the present invention
Figure.
Fig. 4 is saturating according to the straight display module of an embodiment of the present invention, the second column lens array and third column
The schematic front view of a part of lens array.
Fig. 5 is the master according to a part of the straight display module and third column lens array of an embodiment of the present invention
Depending on schematic diagram.
Fig. 6 is the schematic front view according to a part of the straight display module of an embodiment of the present invention.
Fig. 7 is the main view according to a part of the light source module and the first column lens array of another embodiment of the present invention
Schematic diagram.
Fig. 8 is the schematic front view according to a part of the straight display module of another embodiment of the present invention.
Fig. 9 is a part of the straight display module and third column lens array according to another embodiment of the present invention
Schematic front view.
Wherein, appended drawing reference
100: 3 d display device
110: light source module
112b: the first blue-light source
112g: the first green light source
112r: the first red light source
112w: the first white light source
113g: the second green light source
113b: the second blue-light source
113r: the second red light source
113w: the second white light source
120: the first column lens arrays
121: the first cylindrical lenses
122,128: the first cylindrical lenses first part
123,129: the first cylindrical lenses second part
124: the first cylindrical lenses Part III
125: the first cylindrical lenses Part IV
126: the first cylindrical lenses Part V
130: the second column lens arrays
131: the second cylindrical lenses
140: straight display module
141: pixel
141r: red sub-pixel
141r1: the first sub-portion of red sub-pixel
141r2: the second sub-portion of red sub-pixel
141g: green sub-pixels
141g1: the first sub-portion of green sub-pixels
141g2: the second sub-portion of green sub-pixels
141b: blue subpixels
141b1: the first sub-portion of blue subpixels
141b2: the second sub-portion of blue subpixels
141x: the first sub-portion of pixel
141y: the second sub-portion of pixel
142g, 144g: the first sub-portion of green sub-pixels
143g, 145g: the second sub-portion of green sub-pixels
150: third column lens array
151: third cylindrical lenses
151a: third cylindrical lenses first part
151b: third cylindrical lenses second part
151c: third cylindrical lenses Part III
151d: third cylindrical lenses Part IV
151e: third cylindrical lenses Part V
151f: third cylindrical lenses Part VI
151g: third cylindrical lenses Part VII
151h: third cylindrical lenses Part VIII
151i: third cylindrical lenses Part IX
151j: third cylindrical lenses Part X
211,221: the first focal zone
212,222: the second focal zone
213: tertiary focusing region
214: the four focal zones
215: the five focal zones
216: the six focal zones
D: third direction
G1, G1 ', G2, G3, G3 ': spacing
H: first direction
LT1: the first light
LT2: the second light
P1, P2, P3: pitch
V: second direction
W1, W2: width
901,908,909: label
Specific embodiment
Technology contents of the invention are described in detail below in conjunction with attached drawing and multiple embodiments, in order to the present invention
Technology contents clearly stated, the details in many practices will be explained in the following description.However, it is understood that this
Details in a little practices should not be taken to limit the present invention.That is, in some embodiments of the present invention, in these practices
Details is non-essential.In addition, some known usual structures and element in the accompanying drawings will be in a manner of easy to simplify attached drawing
It indicates.
Fig. 1 is the schematic top plan view of the 3 d display device 100 of an embodiment of the invention.Different implementations of the invention
Mode provides a kind of 3 d display device 100.3 d display device 100 utilizes simple optical texture (predominantly three columns
Lens array) make the effect of 100 generation time of 3 d display device multiplexing method is with spatial reuse method.Furthermore, it is understood that three-dimensional aobvious
Showing device 100 is the display device with straight display module.
As shown in Figure 1,3 d display device 100 includes light source module 110, the first column lens array 120, the second column
Lens array 130, straight display module 140 and third column lens array 150.Light source module 110 is to according to the week that shines
Interim multiple timing provide multiple groups timing light.First column lens array 120 is set to 110 front of light source module and (refers to edge
The direction of propagation of light), advance guided the timing light from light source module 110 respectively towards multiple directions group, wherein
Light source module 110 is located on the focal plane of the first column lens array 120.Second column lens array 130 is set to the first column
120 front of lens array.Straight display module 140 is set to 130 front of the second column lens array, wherein straight display module
140 are located on the focal plane of the second column lens array 130, and straight display module 140 includes multiple pixels 141, each pixel 141
Comprising multiple sub-portions, the second column lens array 130 focuses to more respectively to the timing light that will advance towards all directions group
Group focal zone, difference group focal zone correspond respectively to different sub-portions, and straight display module 140 will be will focus to different groups
The timing light of focal zone is respectively converted into multiple groups pixel light (being detailed in aftermentioned).Third column lens array 150 is set to
Straight 140 front of display module, different groups of pixel light are separately directed to multiple kens.
Fig. 2 is the main view of the light source module 110 of an embodiment of the present invention and a part of the first column lens array 120
Schematic diagram.As shown in Fig. 2, light source module 110 includes multiple light sources, light source includes multiple first red light source 112r, Duo Ge
Two red light source 113r, multiple first green light source 112g, multiple second green light source 113g, multiple first blue-light source 112b
And multiple second blue-light source 113b.
3 d display device 100 has mutually perpendicular first direction H and second direction V.In the present embodiment, first
Direction H is horizontal direction, and second direction V is vertical direction.Light source has width W1 on H in a first direction.First green light source
112g is set to the lower right of the first red light source 112r, and the center of the first red light source 112r and the first green light source 112g
Center space projection in the length on first direction H be width W1 half.First blue-light source 112b is set to
The lower right of first green light source 112g, and between the center of the first blue-light source 112b and the center of the first green light source 112g
The half for being width W1 away from the length being projected on first direction H.Second red light source 113r is set to the first red light
The right side of source 112r, and the spacing at the center of the second red light source 113r and the center of the first red light source 112r is equal to width
W1, the second green light source 113g are set to the right side of the first green light source 112g, and the center of the second green light source 113g and the
The spacing at the center of one green light source 112g is equal to width W1, and the second blue-light source 113b is set to the first blue-light source 112b's
Right side, and the spacing at the center of the second blue-light source 113b and the center of the first blue-light source 112b is equal to width W1.First is red
The spacing of color light source 112r H and the first adjacent red light source 112r along a first direction are six times of width W1, the first green
The spacing of light source 112g H and the first adjacent green light source 112g along a first direction are six times of width W1, the first blue light
The spacing of source 112b H and the first adjacent blue-light source 112b along a first direction are six times of width W1.
First column lens array 120 has multiple first cylindrical lenses 121, and the long axis of the first cylindrical lenses 121 is vertical
In first direction H.It is six times of width W1 that each first cylindrical lenses 121, which have pitch P1, pitch P1, on H in a first direction.
Specifically, light source is LED source.It will be understood that the specific embodiment of light source provided above is only
Example is not intended to limit the invention, any to be familiar with general technical staff of the technical field of the invention, can be according to practical need
It wants, the specific embodiment of elasticity selection light source.
H divides for first part 122, second part 123, Part III each first cylindrical lenses 121 along a first direction
124, Part IV 125 and Part V 126.First part 122 corresponds to the first red light source 112r, and second part 123 is right
Should be in the first green light source 112g, Part III 124 corresponds to the first blue-light source 112b and the second red light source 113r, and the 4th
Part 125 corresponds to the second green light source 113g, and Part V 126 corresponds to the second blue-light source 113b.It should be noted that
First cylindrical lenses 121 are in addition to first part 122, second part 123, Part III 124, Part IV 125 and Part V
Also there are other parts, details are not described herein again except 126.
In addition, the first red light source 112r, the first green light source 112g and the first blue-light source 112b are in the first timing
Emit light, the second red light source 113r, the second green light source 113g and the second blue-light source 113b emit in the second timing
Light.
Refer to first part 122 perpendicular to the specifically, first part 122 corresponds to the first red light source 112r
One direction H and the projection on the direction of second direction V are Chong Die with the center of the first red light source 112r.Second part 123
Refer to second part 123 on the direction perpendicular to first direction H and second direction V corresponding to the first green light source 112g
It projects Chong Die with the center of the first green light source 112g.Part III 124 corresponds to the first blue-light source 112b and second
Red light source 113r refers to projection and first of the first part 122 on the direction perpendicular to first direction H and second direction V
Blue-light source 112b is Chong Die with the center of the second red light source 113r.Part IV 125 corresponds to the second green light source
113g refers to projection and second green light source of the Part IV 125 on the direction perpendicular to first direction H and second direction V
The center of 113g is overlapped.Part V 126 correspond to the second blue-light source 113b refer to Part V 126 perpendicular to
First direction H and the projection on the direction of second direction V are Chong Die with the center of the second blue-light source 113b.
Fig. 3 is that the light source module 110 of an embodiment of the present invention and the vertical view of the optical path of the first column lens array 120 are shown
It is intended to.As shown in Figure 2 and Figure 3, because the first red light source 112r and the second red light source 113r correspond respectively to the first column
The first part 122 of lens array 120 and Part III 124, so the first column lens array 120 is by the first red light source
The first light L that 112r emits in the first timingT1Guidance is advanced towards first direction group, and the second red light source 113r is existed
The the second light L emitted when the second timingT2Guidance is advanced towards second direction group.Similarly, because the first green light source 112g,
Second green light source 113g, the first blue-light source 112b and the second blue-light source 113b correspond respectively to the first column lens array
120 different piece, so the first column lens array 120 can be respectively by the first green light source 112g, the second green light source
113g, the first blue-light source 112b and the second blue-light source 113b transmitting light guidance towards different directions group advance (because
First blue-light source 112b and the second red light source 113r all corresponds to the Part III 124 of the first column lens array 120, institute
First blue-light source 112b and the second red light source 113r is guided into group in the same direction with the first column lens array 120
Advance).
Specifically, first direction group can only include a direction, or the direction different comprising multiple angles.Second
Direction group can only include a direction, or the direction different comprising multiple angles.For example, first direction group includes
First direction and second direction, second direction group include third direction and fourth direction, wherein first direction, second direction,
Third direction is neither identical as fourth direction.
The straight display module 140 of the position Fig. 4 an embodiment of the present invention, the second column lens array 130 and third column
The schematic front view of a part of lens array 150.As shown in Fig. 1, Fig. 3 and Fig. 4, the H and second along a first direction of pixel 141
Direction V arrangement.Each pixel 141 includes red sub-pixel 141r, green sub-pixels 141g and blue subpixels 141b, red son
Pixel 141r, green sub-pixels 141g and blue subpixels 141b along second direction V side by side.
Fig. 3 is the straight display module 140 of an embodiment of the present invention and a part of third column lens array 150
Schematic front view.As shown in Fig. 3, Fig. 4 and Fig. 5, H divides for red sub-pixel first red sub-pixel 141r more along a first direction
Sub-portion 141r1 (see Fig. 5) and the second sub-portion of red sub-pixel 141r2 (see Fig. 5), label 909 mark red sub-pixel first
Sub-portion 141r1 and the second sub-portion of red sub-pixel 141r2.Second column lens array 130 will advance towards first direction group
First light LT1Focus to the first focal zone 211, and the second light L that will advance towards second direction groupT2Focus to second
Focal zone 212, wherein the first focal zone 211 corresponds to the first sub-portion of red sub-pixel 141r1, the second focal zone 212
Corresponding to the second sub-portion of red sub-pixel 141r2.
It should be noted that red sub-pixel 141r is in addition to red sub-pixel the first sub-portion 141r1 and red sub-pixel the
Also there are other parts, details are not described herein again except two sub-portion 141r2.
Similarly, the second column lens array 130 is poly- in difference by the light focusing to advance towards different directions group respectively
Burnt region.Specifically, the light focusing that the second column lens array 130 emits the first green light source 112g is in tertiary focusing
Region 213, the light focusing of the second green light source 113g transmitting is in the 4th focal zone 214, the first blue-light source 112b transmitting
Light focusing in the 5th focal zone 215, the light focusing of the second blue-light source 113b transmitting is in the 6th focal zone 216.
H point is the first sub-portion of green sub-pixels 141g1 (see Fig. 5) and green sub-pixels the to green sub-pixels 141g more along a first direction
H divides for the first sub-portion of blue subpixels 141b1 more along a first direction by two sub-portion 141g2 (see Fig. 5), blue subpixels 141b
(see Fig. 5) and the second sub-portion of blue subpixels 141b2 (see Fig. 5), label 909 mark green corresponding to each focal zone
The first sub-portion of pixel 141g1, the second sub-portion of green sub-pixels 141g2, blue subpixels the first sub-portion 141b1 and blue subpixels
Second sub-portion 141b2.Tertiary focusing region 213 corresponds to the first sub-portion of green sub-pixels 141g1, and the 4th focal zone 214 is right
Should be in green sub-pixels the second sub-portion 141g2, the 5th focal zone 215 corresponds to the first sub-portion of blue subpixels 141b1, and the 6th
Focal zone 216 corresponds to the second sub-portion of blue subpixels 141b2.
Herein it should be noted that the second focal zone 212 and the 5th focal zone 215 are essentially the same area.Separately
Outside, green sub-pixels 141g also has other than green sub-pixels the first sub-portion 141g1 and the second sub-portion of green sub-pixels 141g2
There are other parts, blue subpixels 141b is in addition to blue subpixels the first sub-portion 141b1 and the second sub-portion of blue subpixels 141b2
Except also have other parts, details are not described herein again.
Then, the first sub-portion of red sub-pixel 141r1 of each pixel 141 will focus to first in straight display module 140
First light L of focal zone 211T1Pixel light is converted to, the second sub-portion of red sub-pixel 141r2 will focus to the second focusing
The second light L in region 212T2Pixel light is converted to, the first sub-portion of green sub-pixels 141g1 will focus to tertiary focusing region
213 light is converted to pixel light, and green sub-pixels the second sub-portion 141g2 will focus to the light of the 4th focal zone 214
Pixel light is converted to, the light for focusing to the 5th focal zone 215 is converted to pixel by blue subpixels the first sub-portion 141b1
The light for focusing to the 6th focal zone 216 is converted to pixel light by light, blue subpixels the second sub-portion 141b2.
Herein it should be noted that because only red light can be by red sub-pixel 141r, for red
For sub-pixel 141r, the first green light source 112g, the second green light source 113g, the first blue-light source 112b and the second blue light
The light that source 113b is emitted, which can be considered as, to be not present.Similarly, for green sub-pixels 141g, the first red light source
112r, the second red light source 113r, the first blue-light source 112b and the second blue-light source 113b light emitted can be considered as
It is not present.For blue subpixels 141b, the first red light source 112r, the second red light source 113r, the first green light source
The light that 112g, the second green light source 113g are emitted, which can be considered as, to be not present.
Because light source module 110 is located on the focal plane of the first column lens array 120, and straight display module 140 is located at
On the focal plane of second column lens array 130, so the first column lens array 120 and the meeting pair of the second column lens array 130
In the first red light source 112r, the second red light source 113r, the first green light source 112g, the second green light source 113g, the first indigo plant
The light that color light source 112b and the second blue-light source 113b are emitted carries out optical fourier transform twice, and each light source is emitted
Light will focus on the first focal zone 211, the second focal zone naturally after optical fourier transform twice
212, tertiary focusing region 213, the 4th focal zone 214, the 5th focal zone 215 and the 6th focal zone 216, each focal zone
The shape in domain is strip, and the direction of strip will be perpendicular to first direction H.
As shown in Fig. 2 and Fig. 4, the center line of upper first focal zone 211 of H and the second adjacent focal zone in a first direction
The first focal length by the first column lens array 120 of spacing G1 between the center line in domain 212, the second column lens array 130
The second focal length and the first red light source 112r center and the second red light source 113r center spacing (i.e. width W1) certainly
It is fixed.
Specifically, spacing (the i.e. width at the center of the first red light source 112r and the center of the second red light source 113r
W1) and the first focal length and the second column lens array 130 of the ratio of spacing G1 and the first column lens array 120 it is second burnt
Away from ratio it is identical.In other words, by appropriately designing the first focal length and the second cylindrical lenses of the first column lens array 120
The ratio of second focal length of array 130, the first light L of the first red light source 112r transmittingT1Red will properly be focused on
Second light L of the first sub-portion of sub-pixel 141r1, the second red light source 113r transmittingT2Red sub- picture will properly be focused on
The second sub-portion 141r2 of element.
Similarly, the space projection at the center of the first red light source 112r and the center of the first green light source 112g is in first
Length (i.e. the half of width W1) on the H of direction and the in a first direction center line of upper first focal zone 211 of H with it is adjacent
Tertiary focusing region 213 center line between the ratio of spacing G2 and the first focal length of the first column lens array 120 and
The ratio of second focal length of the second column lens array 130 is identical.First red light source 112r H and adjacent along a first direction
The spacing (i.e. six times of width W1) of first red light source 112r and the in a first direction center line of upper first focal zone 211 of H
The first of the ratio of spacing G3 between the center line of the first adjacent focal zone 211 and the first column lens array 120
The ratio of focal length and the second focal length of the second column lens array 130 is identical.The width of spacing G3 is the size of a pixel, and
Six times of spacing G1 are equal to spacing G3.
Furthermore, it is understood that the second column lens array 130 has multiple second cylindrical lenses 131, the second cylindrical lenses 131
Long axis perpendicular to first direction H.Each second cylindrical lenses 131 have pitch P2, the first cylindrical lenses on H in a first direction
The ratio of the pitch P2 of 121 pitch P1 and the second cylindrical lenses 131 is identical as the ratio of the first focal length and the second focal length.Other
Proportionate relationship and proportionate relationship above-mentioned it is similar, therefore repeat no more.
In addition, there is the pixel 141 on H width W2, width W2 to be equal to pitch P2 in a first direction.
As shown in figure 5, third column lens array 150 has multiple third cylindrical lenses 151, third cylindrical lenses 151
Long axis be obliquely installed relative to first direction H and second direction V.Specifically, 3 d display device 100 have more perpendicular to
The third direction D of the long axis of third cylindrical lenses 151.Each third cylindrical lenses 151 are first part along third direction D points
151a, second part 151b, Part III 151c, Part IV 151d, Part V 151e, Part VI 151f, the 7th
Divide 151g, Part VIII 151h, Part IX 151i and Part X 151j.First part 151a, second part 151b, third
Part 151c, Part IV 151d, Part V 151e, Part VI 151f, Part VII 151g, Part VIII 151h,
Nine part 151i and Part X 151j the pixel sub-portion that correspond respectively to ten groups different.For example, 151a pairs of first part
Wherein one group of the second sub-portion of red sub-pixel 141r2, green sub-pixels the second sub-portion 141g2 and blue subpixels second are sub by Ying Yu
Portion 141b2, and this group of the second sub-portion of red sub-pixel 141r2, green sub-pixels the second sub-portion 141g2 and blue subpixels second
Sub-portion 141b2 forms one group of the second sub-portion of pixel 141y.Second part 151b corresponds to wherein one group of first son of red sub-pixel
Portion 141r1, green sub-pixels the first sub-portion 141g1 and blue subpixels the first sub-portion 141b1, and this group of red sub-pixel first
Sub-portion 141r1, green sub-pixels the first sub-portion 141g1 and blue subpixels the first sub-portion 141b1 form the first son of one group of pixel
Portion 141x.
Specifically, as shown in figure 5, the angle δ between first direction H and third direction D is tan-1(1/3), but not
It is limited to this.In other embodiments, the angle δ between first direction H and third direction D can be other angles.For example,
Angle δ can be tan-1(1/2) or tan-1(1/4).If should be noted that angle δ changes, then the light source of light source module 110
Ornaments position also can correspondingly change.
Then, third column lens array 150 respectively distinguishes pixel light caused by ten groups of different pixel sub-portions
It guides to ten kens.
Specifically, first part 151a, second part 151b, Part III 151c, Part IV 151d, Part V
151e, Part VI 151f, Part VII 151g, Part VIII 151h, Part IX 151i and Part X 151j are right respectively
The different pixel sub-portion of Ying Yushi group refers to this ten parts on the direction perpendicular to first direction H and second direction V
It projects and is overlapped from the center of different groups of pixel sub-portion.For example, first part 151a corresponds to the second sub-portion of pixel
141y refers to projection and pixel second son of the first part 151a on the direction perpendicular to first direction H and second direction V
The center of portion 141y is overlapped.The first sub-portion of pixel 141x that second part 151b corresponds to refers to that second part 151b exists
It is Chong Die with the center of the first sub-portion of pixel 141x perpendicular to first direction H and the projection on the direction of second direction V.
Fig. 6 is the schematic front view according to a part of the straight display module 140 of an embodiment of the present invention.Such as Fig. 6
Shown, in a certain ken, the pixel 141 that can be appreciated that label 901 is indicated is formed by pattern；Other kens also can be appreciated that
Pixel 141 forms similar pattern.Specifically, human eye image resolution what is observed in each ken will be straight
/ 5th of the resolution ratio of display module 140.It should be noted that the pixel 141 that label 901 is indicated is formed by sample
Formula is to be uniformly distributed, thus be able to effectively promote display quality.
By the first column lens array 120 and the second column lens array 130 for provided by light source module 110 not
With group light (such as the first light LT1With the second light LT2) optical fourier transform twice is carried out, then each group light will
Each group pixel sub-portion is focused on respectively.Because each group light is generated in the first timing and the second timing respectively, each pixel 141
Different pictures can be shown respectively in the first timing and the second timing, to make by focusing on each group pixel sub-portion (such as
The first sub-portion 141x of element shows different pictures from the pixel light that each group light of the second sub-portion 141y of pixel) is converted and formed
Face.Because each group pixel sub-portion be formed by pixel light can respectively by third cylindrical lenses 151 guidance to the different kens (because
The setting position of each group pixel sub-portion is different), therefore being formed by pixel light in the first timing will be by third cylindrical lenses
Array 150 is guided to five kens, and being formed by pixel light in the second timing will be drawn by third column lens array 150
It is directed at other five kens.Then, human eye image resolution what is observed in each ken will be straight display module
/ 5th of 140 resolution ratio, but 3 d display device 100 but produces the different images positioned at ten kens.Change sentence
It talks about, 3 d display device 100 utilizes simple optical texture, just makes 100 generation time of 3 d display device multiplexing method and sky
Between be multiplexed method the effect of.Specifically, spatial reuse method makes human eye image resolution what is observed in each ken be straight
The different images for being located at five kens, time-multiplexed method are generated in the case where 1/5th of the resolution ratio of formula display module 140
So that the quantity of the ken is become twice as (quantity that multiple is equal to timing), that is, becomes ten kens.
Specifically, straight display module 140 is located on the focal plane of third column lens array 150.More than it will be understood that
The straight display module 140 lifted and the specific embodiment of third column lens array 150 are merely illustrative, not to limit
The present invention, it is any to be familiar with general technical staff of the technical field of the invention, can according to actual needs, elasticity selection is straight aobvious
Show the specific embodiment of module 140 Yu third column lens array 150.
As shown in figs. 4 and 5, it is picture that each third cylindrical lenses 151, which have pitch P3, pitch P3, on H in a first direction
5/3rds times of the width W2 of element 141.Pitch P3 can determine the ken quantity that 3 d display device 100 can produce, if
Pitch P3 is bigger, then the ken quantity that 3 d display device 100 can produce is more.For example, if pitch P3 is width
The three of W2/octuple, then 3 d display device 100 can produce eight kens, if pitch P3 is three times of width W2, stand
Body display device 100 can produce nine kens.
Fig. 7 is a part of the light source module 110 and the first column lens array 120 according to another embodiment of the present invention
Schematic front view.Fig. 8 is to be illustrated according to the main view of a part of the straight display module 140 of another embodiment of the present invention
Figure.Fig. 9 is a part of the straight display module 140 and third column lens array 150 according to another embodiment of the present invention
Schematic front view.As shown in Fig. 7, Fig. 8 and Fig. 9, the 3 d display device 100 of present embodiment substantially with aforementioned embodiments
3 d display device 100 it is identical, below mainly description difference.
As shown in fig. 7, light source module 110 include multiple light sources, light source include multiple first white light source 112w with it is multiple
Second white light source 113w.
The shape of first white light source 112w and the second white light source 113w are strip.The length of first white light source 112w
The long axis of axis and the second white light source 113w are each perpendicular to first direction H.
Light source has width W1 on H in a first direction.First white light source 112w is set to the second white light source 113w's
Left, and spacing of the center of the center of the first white light source 112w and the second white light source 113w in a first direction on H is equal to
Width W1.The spacing between H and the first adjacent white light source 112w is width to first white light source 112w along a first direction
Six times of W1.The spacing between H and the second adjacent white light source 113w is width to second white light source 113w along a first direction
Six times for spending W1.
H divides for first part 128 and second part 129 each first cylindrical lenses 121 along a first direction.First part
128 correspond to the first white light source 112w, and second part 129 corresponds to the second white light source 113w.It should be noted that first
Cylindrical lenses 121 also have other parts other than first part 128, second part 129, and details are not described herein again.
Then, similar to Figure 3, the first column lens array 120 is respectively by the white of the first white light source 112w and second
The light that light source 113w is emitted is separately directed to Liang Ge different directions group.
Specifically, first part 128 and second part 129 correspond respectively to the white of the first white light source 112w and second
Light source 113w refers to projection of the first part 128 on the direction perpendicular to first direction H and second direction V and the first white
The center of light source 112w is overlapped, projection of the second part 129 on the direction perpendicular to first direction H and second direction V
It is Chong Die with the center of the first white light source 112w.
Specifically, the first white light source 112w emits light in the first timing, the second white light source 113w is second
Emit light when timing.
Specifically, the first white light source 112w and the second white light source 113w is LED source.It will be understood that
The specific embodiment of above-described first white light source 112w and the second white light source 113w are merely illustrative, not to limit
The system present invention, it is any to be familiar with general technical staff of the technical field of the invention, can according to actual needs, elasticity selection first
The specific embodiment of white light source 112w and the second white light source 113w.
As shown in Fig. 1, Fig. 7 and Fig. 8, the second column lens array 130 will be towards the light focusing of different directions group to
One focal zone 221 and the second focal zone 222.Specifically, the second column lens array 130 is by the first white light source 112w
The light focusing of transmitting is in the first focal zone 221, by the light focusing of the second white light source 113w transmitting in the second focal zone
Domain 222.As shown in figure 9, H divides for the first sub-portion 142 and the second sub-portion 143, the first focal zone pixel 141 more along a first direction
Domain 221 corresponds to the first sub-portion 142, and the second focal zone 222 corresponds to the second sub-portion 143.
Then, first sub-portion 142 of each pixel 141 will focus on the first focal zone 221 in straight display module 140
Light is converted to pixel light, and the light for focusing on the second focal zone 222 is converted to pixel light by the second sub-portion 143.
In a first direction the center line of the center line of upper first focal zone 221 of H and the second adjacent focal zone 222 it
Between spacing G1 ' by the first focal length of the first column lens array 120, the second focal length of the second column lens array 130 and
The spacing (i.e. width W1) of the axis of the axis of one white light source 112w and the second white light source 113w determines.
Specifically, spacing (the i.e. width of the axis of the axis of the first white light source 112w and the second white light source 113w
W1) and the first focal length and the second column lens array 130 of the ratio of spacing G1 ' and the first column lens array 120 second
The ratio of focal length is identical.
The spacing G3 ' between upper first focal zone 221 of H and the first adjacent focal zone 221 can be by a first direction
First focal length of the first column lens array 120, the second focal length of the second column lens array 130 and the first white light source 112w
The spacing (i.e. six times of width W1) of H and the first adjacent white light source 112w determines along a first direction.
Specifically, the spacing of the first white light source 112w H and the first adjacent white light source 112w along a first direction
The first focal length and the second cylindrical lenses of the ratio and the first column lens array 120 of (i.e. six times of width W1) and spacing G3 '
The ratio of second focal length of array 130 is identical.Other proportionate relationships and proportionate relationship above-mentioned are similar, therefore repeat no more.
In fig. 8, the width of spacing G3 ' is the size of a pixel, and six times of spacing G1 ' are equal to spacing G3 '.
As shown in figure 9, the first part 151a of third cylindrical lenses 151, second part 151b, Part III 151c,
Four part 151d, Part V 151e, Part VI 151f, Part VII 151g, Part VIII 151h, Part IX 151i with
Part X 151j corresponds respectively to different groups of sub-pixel sub-portion.For example, first part 151a corresponds to wherein one group
The second sub-portion of green sub-pixels 143g.Second part 151b corresponds to wherein one group of the first sub-portion of green sub-pixels 142g.Third
Part 151c corresponds to wherein one group of the second sub-portion of green sub-pixels 145g.Part IV 151d corresponds to wherein one group of green
The first sub-portion of pixel 144g.Label 908 marks the first sub-portion of green sub-pixels 142g, 144g, the second sub-portion of green sub-pixels
143g、145g。
Then, third column lens array 150 is respectively by ten groups of pixel light difference caused by different pixel sub-portions
It guides to ten kens.
It should be noted that in the present embodiment, the different subpixel of same pixel 141 may not necessarily be assigned to identical view
Domain.However, only to handle by data signal appropriate, straight display module 140 just can be made to show correct image information,
Thus each ken is made to show picture appropriate.
Specifically, first part 151a, second part 151b, Part III 151c, Part IV 151d, Part V
151e, Part VI 151f, Part VII 151g, Part VIII 151h, Part IX 151i and Part X 151j are right respectively
Throwing of this ten parts on the direction perpendicular to first direction H and second direction V should be referred in different sub-pixel sub-portions
Shadow is overlapped from the center of different groups of sub-pixel sub-portion.
Some technical characteristics of 3 d display device 100 can be summed up by aforementioned embodiments, individually below one by one in detail
It states.
In the embodiment that light source module 110 includes multiple white light sources, 3 d display device 100 has perpendicular to the
One direction of the long axis of one cylindrical lenses 121, each first cylindrical lenses 121 are divided into K part, different piece along this direction
K group white light source is corresponded respectively to, the first column lens array 120 is guiding K group timing light respectively towards K direction group
Group is advanced, and each pixel 141 includes K sub-portion, and the second column lens array 130 is to will be towards the K group timing of K direction group
Light focuses to K group focal zone respectively, and K group focal zone corresponds respectively to K sub-portion.
In the embodiment that light source module 110 includes multiple red light sources, multiple green light sources and multiple blue-light sources,
3 d display device 100 has a direction of the long axis perpendicular to the first cylindrical lenses 121, each first cylindrical lenses, 121 edge
This direction be divided into 3K part, different piece corresponds respectively to K group red light source, K group green light source and K group blue-light source,
And K group red light source, K group green light source and K group blue-light source form 3K group timing light in K timing, the first column is saturating
Lens array 120 advances guided 3K group timing light respectively towards 3K direction group, and each pixel includes K sub-portion,
In each sub-portion include red sub-pixel sub-portion, blue subpixels sub-portion and green sub-pixels sub-portion.Second column lens array
130 to focus to 3K group focal zone, 3K group focal zone for the 3K group timing light to advance towards 3K direction group respectively
Correspond respectively to K red sub-pixel sub-portion, K blue subpixels sub-portion and K green sub-pixels sub-portion.
It is right by the first column lens array 120 and the second column lens array 130 in above embodiment of the present invention
The group of the difference provided by light source module 110 light (such as the first light LT1With the second light LT2) carry out optics Fourier twice
Leaf conversion, then each group light will focus on each group sub-pixel sub-portion respectively.Because each group light respectively the first timing with
Second timing generates, therefore each pixel 141 can show different pictures in the first timing and the second timing respectively, to make to pass through
The pixel light for focusing on each group light conversion of each group sub-pixel sub-portion and being formed shows different pictures.Because of each group sub- picture
Sub-prime portion is formed by pixel light can be respectively by the guidance of third cylindrical lenses 151 to the different kens (because of each group sub-pixel
The position in portion is different), therefore being formed by pixel light in the first timing will be by the guidance of third column lens array 150 to not
The same ken.For example, if there are two timing in total, and pixel light is formed by by third cylindrical lenses battle array in the first timing
To five kens, then being formed by pixel light in the second timing can be guided extremely the guidance of column 150 by third column lens array 150
Other five kens.Then, in this example, human eye image resolution what is observed in each ken will be straight
/ 5th of the resolution ratio of display module 140, but 3 d display device 100 but produces the different shadows positioned at ten kens
Picture.In other words, 3 d display device 100 utilizes simple optical texture, is just multiplexed 100 generation time of 3 d display device
The effect of method and spatial reuse method.Specifically, spatial reuse method differentiates human eye image what is observed in each ken
Rate be the resolution ratio of straight display module 140 M/mono- in the case where generate the different images for being located at the M ken, the time is multiple
So that the quantity of the ken is become N times (quantity of N timing) with rule, that is, becomes the N × M ken.
Although the present invention is disclosed above with embodiment, however, it is not to limit the invention, any category this field
Those of ordinary skill, without departing from the spirit and scope of the present invention, when can make it is various change and retouch, but these change and profit
Decorations should be all contained in range claimed.
Claims (9)
1. a kind of 3 d display device, includes:
Light source module, the light source module is to provide multiple groups timing light according to multiple timing in light period；
First column lens array, has multiple first cylindrical lenses, which is set to the light source module
Front is advanced, wherein the light source guided the timing light from the light source module respectively towards multiple directions group
Mould group is located on the focal plane of first column lens array；
Second column lens array, has multiple second cylindrical lenses, which is set to first column
In front of lens array；
Straight display module, the straight display module are set in front of second column lens array and saturating positioned at second column
On the focal plane of lens array, which includes multiple pixels, and each pixel includes multiple sub-portions, second column
Lens array to focus to multiple groups focal zone, the focusing for the timing light to advance towards the direction group respectively
Region corresponds respectively to the sub-portion, the timing light point of the straight display module will focus to the focal zone
Multiple groups pixel light is not converted to；With
Third column lens array, has multiple third cylindrical lenses, which is set to the straight display
In front of module, the pixel light is separately directed to multiple kens；
Wherein the long axis of the long axis of first cylindrical lenses and second cylindrical lenses is perpendicular to first direction, and described
The long axis of third cylindrical lenses is inclined compared to the first direction.
2. 3 d display device as described in claim 1 also has the second direction perpendicular to the first direction, wherein described
Pixel is arranged along the first direction and the second direction, and each pixel includes multiple sub-pixels of different colours, described
Sub-pixel along the second direction side by side.
3. 3 d display device as claimed in claim 2, wherein the straight display module is located at the third column lens array
Focal plane on.
4. 3 d display device as claimed in claim 3, which has the first focal length, in the first party
Upward each first cylindrical lenses have first segment away from, which has the second focal length, this first
Each second cylindrical lenses have the second pitch, the ratio and the first segment of first focal length and second focal length on direction
Away from identical with the ratio of second pitch.
5. 3 d display device as claimed in claim 4, the pixel has the first width in the first direction, this first
The size of width is equal to the size of second pitch.
6. 3 d display device as claimed in claim 2, wherein the light source module includes multiple white light sources.
7. 3 d display device as claimed in claim 6, wherein each first cylindrical lenses are along the first direction point
For K part, the part corresponds respectively to the K group white light source, and the K group white light source is in the K timing
The K group timing light is formed, first column lens array is described towards K guiding the K group timing light respectively
Direction group advances, and each pixel includes K sub-portions, and second column lens array is to will be towards the K sides
The K group timing light to advance to group focuses to the K group focal zone respectively, and the K group focal zone respectively corresponds
In the K sub-portions.
8. 3 d display device as claimed in claim 2, wherein the light source module includes multiple red light sources, multiple green lights
Source and multiple blue-light sources.
9. 3 d display device as claimed in claim 8, wherein each first cylindrical lenses are along the first direction point
For 3K part, the 3K part corresponds respectively to the K group red light source, the K group green light source and the K group blue
Light source, and the K group red light source, the K group green light source and the K group blue-light source form 3K in the K timing
The group timing light, first column lens array is guiding the 3K group timing light respectively towards the 3K directions
Group advances, and each pixel includes the K sub-portions, wherein each sub-portion includes a red sub-pixel sub-portion, one
Blue subpixels sub-portion and a green sub-pixels sub-portion, second column lens array is to will be towards before the 3K direction groups
Into the 3K group timing light focus to the 3K group focal zone respectively, the 3K group focal zone corresponds respectively to K
The red sub-pixel sub-portion, the K blue subpixels sub-portions and the K green sub-pixels sub-portions.
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| CN109375381B (en) * | 2018-11-27 | 2021-09-07 | 浙江理工大学 | Three-dimensional display method and system with high information flux and low crosstalk |
| CN114660827A (en) * | 2020-12-22 | 2022-06-24 | 群创光电股份有限公司 | Electronic device and display method thereof |
| CN113917700B (en) * | 2021-09-13 | 2022-11-29 | 北京邮电大学 | Three-dimensional light field display system |
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| EP1083756A2 (en) * | 1999-09-09 | 2001-03-14 | Mixed Reality Systems Laboratory Inc. | Stereoscopic image display apparatus |
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| EP1083756A2 (en) * | 1999-09-09 | 2001-03-14 | Mixed Reality Systems Laboratory Inc. | Stereoscopic image display apparatus |
| US6816313B2 (en) * | 2000-12-21 | 2004-11-09 | Canon Kabushiki Kaisha | Display unit, display method, and display instrument employing the same |
| CN101919258A (en) * | 2007-06-27 | 2010-12-15 | 泽克泰克显示系统私人有限公司 | Switchable optical imaging system and relevant 3D/2D image switchable apparatus |
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