CN102750881A - 3D (three dimensional) LED (light-emitting diode) display screen capable of enhancing polarization effect - Google Patents
3D (three dimensional) LED (light-emitting diode) display screen capable of enhancing polarization effect Download PDFInfo
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- CN102750881A CN102750881A CN2012101884104A CN201210188410A CN102750881A CN 102750881 A CN102750881 A CN 102750881A CN 2012101884104 A CN2012101884104 A CN 2012101884104A CN 201210188410 A CN201210188410 A CN 201210188410A CN 102750881 A CN102750881 A CN 102750881A
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Abstract
The invention relates to a 3D (three dimensional) LED (light-emitting diode) display screen capable of enhancing polarization effect, which mainly comprises an LED display screen body, a reflective polarization film and a polarization conversion film, wherein the reflective polarization film can enable adjacent LED beads to send out left polarized light (PL) and the right polarized light (PR) in a staggered mode, and reflect S polarized light incapable of penetrating through the reflective polarization film, and the polarization directions of the left polarized light (PL) and the right polarized light (PR) are mutually perpendicular; and the polarization conversion film can reflect the returned S polarized light twice to convert the S polarized light into the corresponding left polarized light (PL) and corresponding right polarized light (PR) so as to enhance the polarization effect. Through the different covering combination of the reflective polarization film and the polarization conversion film, LED beads are vertically and horizontally staggered, or staggered at a interval of a row, or staggered at a interval of a column so as to send out the left polarized light (PL) and the right polarized light (PR), the polarization directions of which are mutually perpendicular. Left and right eye images are respectively transmitted to the left polarized light (PL) and the right polarized light (PR) by a proper display drive and control system so as to realize the 3D display.
Description
Technical field
The present invention relates to a kind of LED display that can realize that 3D shows.
Background technology
It is more and more universal that 3D shows, 3D film, 3D TV, 3D stage special efficacy are more and more near people's life.Use at most to adopt the polarization mode to pitch the branch left-and right-eye images, the 3D film generally adopts 3D shadow casting technique, and the 3D TV generally adopts the 3D liquid crystal display, all need wear polarised light glasses, is divided into passive polarisation and active polarisation dual mode again.Yet for everywhere visible, use LED display very widely, main application is that still 2D shows the field, uses considerably less for 3D.The present invention discloses through LED display being realized the 3D polarization shows, more important part is to improve polarized light output transformation efficiency, thereby the brightness that can improve the 3D display mode reduces energy consumption.Embodiment of the present invention in addition is simple, can directly carry out upgrading to existing 2D LED display, cuts the waste, reduces cost.
Summary of the invention
The present invention mainly through the staggered polarization that covers strengthens composite membrane on the LED display surface, realizes 3D polarization display effect.The light that general led chip sends is the nonpolarized light of nature; After seeing through polarizing coating; The P polarized light parallel with the polarizing coating polarization direction respectively accounts for half the with the S polarized light vertical with the polarizing coating polarization direction; Have only 50% light at most--P polarization luminous energy penetration formula polarizing coating, and surpass in addition 50% light--the S polarized light will be wasted, thereby the brightness of 3D display mode is reduced by more than 50 at least.The polarization that the present invention adopts strengthens composite membrane mainly to be made up of one deck polarization conversion film and reflection type polarization film, can rise to 70% ~ 90% by the less than 50% of traditional polarization display mode.Because the light that led chip sends has only the P polarized light consistent with reflection type polarization film polarization direction to see through; The S polarized light vertical with reflection type polarization film polarization direction then is returned through the polarization conversion film; Returned by the LED substrate again then and see through the polarization conversion film once more; The polarization conversion film is a quarter wave plate; Keep quarter wave plate to become 45 with the polarization direction of reflection type polarization film, then S light is converted into and the consistent P polarized light of reflection type polarization film polarization direction, penetration formula polarizing coating once more through behind the quarter wave plate through twice.Because the S light that originally is wasted is recycled to reclaim and utilizes, so 3D LED display polarization light quantity of the present invention strengthens, brightness increases, the power consumption that can save the 3D display mode.
LED display is generally formed by LED lamp pearl array, and every LED lamp pearl contains R, G, B three-primary color LED chip at least, thereby can full-colorly show.The light that led chip sends is the nonpolarized light of nature, in order to let the images of left and right eyes signal is decomposed into the orthogonal left polarized light (P of polarization direction
L) and right polarized light (P
R), all post one deck reflection type polarization film at every LED lamp bead surface, make the polarization direction of polarizing coating of all left and right with it, the upper and lower adjacent LED lamp pearl of the polarizing coating of every LED lamp pearl vertical each other, divide left reflection type polarization film and right reflection type polarization film.The polarization direction of left side reflection type polarization film and the left polarized light (P of entering
L) polarization direction consistent, right reflection type polarization film then with right polarized light (P
R) polarization direction consistent, the polarization direction of left reflection type polarization film and right reflection type polarization film is mutually 90 ° of angles.Through wear left and right respectively with left reflection type polarization film and the consistent polarised light glasses of right reflection type polarization film polarization direction, left eye can only receive left polarized light (P
L), right eye can only receive right polarized light (P
R).Through appropriate display driving control system decoding 3D vision signal, respectively left-and right-eye images is sent to corresponding demonstration of led array of the led array and the covering right reflection type polarization film of the left reflection type polarization film of covering again, send left polarized light (P respectively
L) and right polarized light (P
R), realize the 3D display effect.
Strengthen composite membrane to polarization, the invention provides three kinds of coverage modes: single covering, full slice system cover and the strip covering.
(1) single covering:
When LED lamp bead seal is adorned, all encapsulate the polarization conversion film, and distinguish left and right polarization state and encapsulate respectively and left reflection type polarization film or right reflection type polarization film with regard to every.When LED lamp bead weld dress array; Seal the LED lamp pearl that left reflection type polarization film and right reflection type polarization film are arranged by staggered respectively being welded in upper and lower, left and right, thereby LED lamp pearl can be by the staggered orthogonal left polarized light (P of polarization direction that sends of left and right, the upper and lower LED lamp pearl that is adjacent
L) and right polarized light (P
R).
(2) cover to full slice system:
Mount polarization conversion film, left reflection type polarization film and right reflection type polarization film successively at common LED display screen surface full slice system and constitute polarization enhancing composite membrane.Staggered punching realizes that the direction of polarized light that all left and right with it, the upper and lower adjacent LED lamp pearl of direction of polarized light that every LED lamp pearl sends sends is vertical each other on left reflection type polarization film and right reflection type polarization film.The polarization conversion film is positioned in the middle of LED display and the left and right reflection type polarization film.Perforate on the reflection type polarization film of a left side and the corresponding LED lamp of the perforate on right reflection type polarization film pearl be adjacent one another are, successively at interval, send the orthogonal left polarized light (P of polarization direction thereby adjacent LED lamp pearl can be interlocked
L) and right polarized light (P
R), do not disturb mutually.Owing in the middle of reflection type polarization film and LED display, accompany one deck polarization conversion film, the light that LED lamp pearl sends can directly see through at left reflection type polarization film perforate position and arrive right reflection type polarization film, right polarization state light (P
R) can see through right reflection type polarization film; The S polarized light of vertical right polarization state then reflects twice through changing right polarization state light (P behind the polarization conversion film into
R), see through right reflection type polarization film output once more.At right reflection type polarization film perforate position, its left polarization state of the light that LED lamp pearl sends can see through left reflection type polarization film, through the without hindrance output of right reflection type polarization film perforate equally; The S polarized light of vertical left polarization state then reflects twice through changing left polarized light (P behind the polarization conversion film into
L), see through left reflection type polarization film once more, through the without hindrance output of right reflection type polarization film perforate.Therefore; This full slice system polarization strengthens composite membrane can realize that not only adjacent LED lamp pearl sends the orthogonal left and right polarization state light of direction of polarized light respectively; And can make the polarization state light of recycle and reuse reflected back simultaneously, make the output efficiency of left and right polarization state light can both obtain nearly double lifting.
(3) more simply, realize alternately that to interlacing or at a distance from row the strip of can carrying out that 3D shows covers:
No matter be interlacing or the 3D demonstration that realizes at a distance from row, all needing full line or permutation ground is that whole piece ground pastes reflection type polarization film and polarization conversion film on the LED display surface.The reflection type polarization film is attached to polarization conversion film surface, is cut into left reflection type polarization film bar and right reflection type polarization film bar respectively with the polarization conversion film by left and right polarization state direction.The polarization polarization angle of left side reflection type polarization film and right reflection type polarization film is 90 ° of angles, transmissive left side polarized light (P respectively each other
L) and right polarized light (P
R), film bar width is consistent with LED lamp pearl spacing.Interlacing or separated row replace adjacent left reflection type polarization film bar and the right reflection type polarization film bar that pastes with the polarization conversion film respectively then, thereby but interlacing or separated row show left polarized light (P
L) and right polarized light (P
R).Display drive control system is given the LED row or column of the left reflection type polarization film bar of covering and the LED row or column of covering right reflection type polarization film bar at a distance from biographies respectively with left-and right-eye images, realizes the 3D display effect.
The present invention is to realize that arc even 360 ° of panorama 3D of annular show with respect to advantage of 3D projection.Because LED display can be that rectangle or square LED array display unit are assembled, through led array display unit surface coverage polarization of the present invention is strengthened composite membrane, again the led array display unit is carried out arc and be assembled into, but arc shows.Further, arc is further expanded into closed ring, can show by 360 ° of panorama 3D, realize the 3D visual effect on the spot in person of shock more, be very suitable for large-scale movie theatre, stage displaying.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the front schematic view of 3D LED display of the present invention;
Fig. 2 is a schematic cross-section behind single LEDs covering polarization enhancing composite membrane of the present invention;
Fig. 3 is a full slice system of the present invention left side reflection type polarization film perforate synoptic diagram;
Fig. 4 is the right reflection type polarization film of a full slice system of the present invention perforate synoptic diagram;
Fig. 5 is the compound synoptic diagram of the left and right reflection type polarization film of full slice system of the present invention;
Fig. 6 is the schematic cross-section of left and right reflection type polarization film of full slice system of the present invention and polarization conversion film complex superposition;
Fig. 7 is the front schematic view of left and right polarization state light of the present invention at a distance from row output 3D display screen;
Fig. 8 is the front schematic view of left and right polarization state light interlacing output 3D display screen of the present invention;
Fig. 9 is the schematic cross-section that strip interlacing of the present invention or separated row cover;
Figure 10 is an arc 3D display screen assembly unit synoptic diagram of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is done further explain, but the scope that the present invention requires to protect is not limited to the scope that embodiment representes.Without departing from the present invention, can make the change of structure and others and as other embodiment, the various aspects of each embodiment and each different embodiment thereof can make up use in any suitable manner to it.So, accompanying drawing with detail will be counted as in essence descriptive and nonrestrictive.
Fig. 1 is the front schematic view of 3D LED display of the present invention.LED display 1 is formed by LED lamp pearl 11 arrays.Every LED lamp bead surface all posts one deck left side reflection type polarization film 101 or right reflection type polarization film 102, thereby can only transmit the left polarized light (P consistent with the polarization direction of subsides polarizing coating
L) and right polarized light (P
R).Every LED lamp pearl is all staggered corresponding with a left reflection type polarization film 101 or right reflection type polarization film 102, makes LED lamp pearl by the staggered orthogonal left polarized light (P of polarization direction that sends of left and right, the upper and lower LED lamp pearl that is adjacent
L) and right polarized light (P
R).Shown in figure; The polarization direction of left side reflection type polarization film 101 is consistent with the polarization direction of the polarized light that gets into left eye; The right reflection type polarization film 102 then polarization direction with the polarized light that gets into right eye is consistent, and left reflection type polarization film 101 is orthogonal with the polarization direction of right reflection type polarization film 102.Through wear left and right respectively with left reflection type polarization film 101 and the consistent polarised light glasses of right reflection type polarization film 102 polarization directions; Left eye can only be seen the light that the LED pixel of the left reflection type polarization film 101 of covering is sent, and right eye can only be seen the light that the LED pixel of covering right reflection type polarization film 102 is sent.Through appropriate display driving control system decoding 3D vision signal, respectively left-and right-eye images is sent to corresponding demonstration of led array of the led array and the covering right reflection type polarization film 102 of the left reflection type polarization film 101 of covering, can realize the 3D display effect.Because the polarization direction of the polarizing coating of all left and right with it, the upper and lower adjacent LED lamp pearl 11 of the polarization direction of the polarizing coating of every LED lamp pearl 11 is vertical each other; Therefore than showing with the right and left eyes interlacing or show that at a distance from the 3D polarization that row show finer and smoother more comfortable visual effect is arranged that left-and right-eye images can be realized perfectly point-to-point interlaced, mixing together.
Fig. 2 can strengthen the schematic cross-section of single LED lamp pearl 11 of the 3D LED display of polarization light efficiency for the present invention.LED lamp pearl 11 contains R, G, B three-primary color LED chip 111 at least, can realize full-color demonstration.On the stationary plane of led support substrate 112 and led chip 111 reflecting surface 113 is arranged.Post one deck polarization conversion film 103 on LED lamp pearl 11 surfaces, this polarization conversion film 103 can be quarter wave plate (QWP).One deck reflection type polarization film 101 (or 102) is posted on polarization conversion film 103 surfaces again, still is that right reflection type polarization film 102 depends on that the location of pixels of this LED lamp pearl is positioned at left-eye image zone or eye image zone as for pasting left reflection type polarization film 101.The light that led chip 111 sends is the nonpolarized light of nature, has only 50% luminous energy penetration formula polarizing coating 101 or 102 at most, will be wasted and surpass 50% light in addition, thereby the brightness of 3D display mode is reduced by more than 50 at least.The present invention uses reflection type polarization film 101 (or 102) and polarization conversion film 103 to strengthen the polarized light output efficiency through collocation, can rise to 70% ~ 90% by the less than 50% of traditional polarization display mode.The light that led chip 111 sends has only with the consistent P polarized light of reflection type polarization film 101 (or 102) polarization direction and can see through; Then be returned through polarization conversion film 103 with the vertical S polarized light of reflection type polarization film 101 (or 102) polarization direction, the face 113 that is reflected again then returns and sees through polarization conversion film 103 once more.Polarization conversion film 103 is quarter wave plate (QWP), and its optical axis direction is 45 ° of angles with the polarization direction of left reflection type polarization film 101 and right reflection type polarization film 102 respectively.S light is converted into the P polarized light through twice through behind the quarter wave plate, as for changing into left polarized light (P
L) or right polarized light (P
R), depend on that then the reflection type polarization film that is covered is left reflection type polarization film 101 or right reflection type polarization film 102, thus but penetration formula polarizing coating 101 (or 102).Because the S light that originally is wasted is recycled to reclaim and utilizes, so 3D LED display polarization light quantity of the present invention strengthens, brightness increases, the power consumption that can save the 3D display mode.
During practical operation, can be when LED lamp pearl 11 encapsulation all encapsulate polarization conversion film 103, and distinguish left and right polarization state and encapsulate respectively and left reflection type polarization film 101 or right reflection type polarization film 102 with regard to every.When LED lamp bead weld dress array; By the staggered respectively envelope that is welded in upper and lower, left and right the LED lamp pearl of left reflection type polarization film 101 and right reflection type polarization film 102 is arranged, thereby make LED lamp pearl by the staggered orthogonal left polarized light (P of polarization direction that sends of left and right, the upper and lower LED lamp pearl that is adjacent
L) and right polarized light (P
R).
In order more easily existing 2D LED display to be carried out the 3D upgrading, can mount polarization conversion film 103, left reflection type polarization film 101 and right reflection type polarization film 102 successively at existing 2D LED display surface full slice system.Left side reflection type polarization film 101 is vertical each other with the direction of polarized light that all left and right with it, the upper and lower adjacent LED lamp pearl of direction of polarized light that the every LED lamp pearl of right reflection type polarization film 102 staggered punching realizations sends sends.
Fig. 3 is the full slice system left side reflection type polarization film 101 that has the position, hole.The separated position perforate 1011 of spacing of the LED lamp pearl 11 of LED display 1 is pressed in upper and lower, left and right.Perforate 1011 shapes can be square, rectangle, circle, hexagon or octagon.Then the light that sends of the LED lamp pearl at perforate 1011 places does not receive the effect of this layer reflection type polarization film, and the light that has only the LED lamp pearl of non-perforate position 1012 to send is polarized by polarization.
Fig. 4 is the right reflection type polarization film 102 of full slice system that has the position, hole.The separated position perforate 1021 of spacing of the LED lamp pearl 11 of LED display 1 is pressed in upper and lower, left and right.Perforate 1021 shapes can be square, rectangle, circle, hexagon or octagon.Then the light that sends of the LED lamp pearl at perforate 1021 places does not receive the effect of this layer reflection type polarization film, and the light that has only the LED lamp pearl of non-perforate position 1022 to send is polarized by polarization.For the level LED display consistent with the pel spacing of vertical direction, can simply left reflection type polarization film 101 be pressed face normal orientation half-twist, promptly can be used as right reflection type polarization film 102.
Fig. 5 is full slice system left side reflection type polarization film 101 and right reflection type polarization film 102 compound synoptic diagram.Keep the polarization direction of left reflection type polarization film 101 vertical each other with the polarization direction of right reflection type polarization film 102; Perforate 1011 centers on the left side reflection type polarization film 101 and non-perforate position 1022 center-aligned on the right reflection type polarization film 102; Perforate 1021 centers on the right reflection type polarization film 102 and non-perforate position 1012 center-aligned on the left reflection type polarization film 101, fitting forms the reflection type polarization composite membrane.Therefore the reflection type polarization composite membrane can be by the staggered respectively orthogonal polarization state light of polarization direction that sends in LED lamp pearl spacing upper and lower, left and right.
Fig. 6 full slice system left side reflection type polarization film 101, right reflection type polarization film 102 and polarization conversion film 103 Application of composite schematic cross-sections.Left side reflection type polarization film 101, right reflection type polarization film 102 constitute polarization with 103 stacks of polarization conversion film and strengthen composite membrane 100.Polarization conversion film 103 is positioned in the middle of LED display and left reflection type polarization film 101 and the right reflection type polarization film 102, and polarization conversion film 103 is a quarter wave plate, its optical axis direction respectively with left polarized light (P
L) and right polarized light (P
R) polarization direction be 45 ° of angles.Align with the LED lamp pearl that shows the left-eye image signal in 1012 centers, non-perforate position on the left side reflection type polarization film 101; Align with the LED lamp pearl that shows the eye image signal in 1022 centers, non-perforate position on the right reflection type polarization film 102.The corresponding LED lamp pearl of perforate 1021 on perforate 1011 on the left side reflection type polarization film 101 and the right reflection type polarization film 102 is 11 adjacent one another are, successively at interval, thereby adjacent LED lamp pearl 11 can be interlocked and sent the orthogonal left polarized light (P of polarization direction
L) and right polarized light (P
R), do not disturb mutually.Because at the middle one deck polarization conversion film 103 that accompanies of reflection type polarization film 101/102 and LED display, the light that LED lamp pearl 11 sends can directly see through at left reflection type polarization film 101 perforates 1011 positions and arrive right reflection type polarization film 102, right polarized light (P
R) can see through right reflection type polarization film 102; The S polarized light of vertical right polarization state then reflects twice through changing right polarized light (P behind the polarization conversion film 103 into
R), see through right reflection type polarization film 102 outputs once more.At right reflection type polarization film 102 perforates 1021 positions, its left polarization state of the light that LED lamp pearl 11 sends can see through left reflection type polarization film 101 equally, through right reflection type polarization film 102 perforates 1021 without hindrance outputs; The light of vertical left polarization state then reflects twice through changing left polarized light (P behind the polarization conversion film 103 into
L), see through left reflection type polarization film 101 once more, through right reflection type polarization film 102 perforates 1021 without hindrance outputs.Therefore, this polarization enhancing composite membrane 100 can realize that not only adjacent LED lamp pearl sends the orthogonal left polarized light (P of direction of polarized light respectively
L) and right polarized light (P
R), and can make the polarization state light of recycle and reuse reflected back simultaneously, make left polarized light (P
L) and right polarized light (P
R) output efficiency can both obtain nearly double lifting.
More simply, Fig. 7 is that the left and right polarization state light of another embodiment of the present invention realizes that at a distance from row output 3D shows.Left side reflection type polarization film 101 covers vertical permutation LED; Right reflection type polarization film 102 also covers adjacent permutation LED, and 101 of left reflection type polarization films are left and right vertically at a distance from being listed as alternately array with 102 of right reflection type polarization films, cover whole LED display screen 1.The polarization polarization angle of left side reflection type polarization film 101 and right reflection type polarization film 102 is 90 ° of angles, transmissive left side polarized light (P respectively each other
L) and right polarized light (P
R).The display drive control system of coupling is given the LED row that cover 101 of left reflection type polarization films and corresponding demonstration of LED row of 102 of covering right reflection type polarization films, realization 3D display effect at a distance from biographies respectively with left-and right-eye images.
Fig. 8 is that the left and right polarization state light interlacing output of another embodiment of the present invention realizes that 3D shows.Left side reflection type polarization film 101 covers horizontal full line LED; Right reflection type polarization film 102 also covers adjacent full line LED, and 101 of left reflection type polarization films and 102 upper and lower horizontal interlaced alternative arrays of right reflection type polarization film cover whole LED display screen 1.The polarization polarization angle of left side reflection type polarization film 101 and right reflection type polarization film 101 is 90 ° of angles, transmissive left side polarized light (P respectively each other
L) and right polarized light (P
R).The display drive control system of coupling with left-and right-eye images respectively interlacing send capable corresponding demonstration of the capable LED of the LED that covers 101 of left reflection type polarization films to 102 of covering right reflection type polarization films, realize the 3D display effect.
Fig. 9 the present invention is directed to interlacing or realizes alternately that at a distance from row 3D shows reflection type polarization film 101/102 and polarization conversion film 103 Application of composite schematic cross-sections.No matter be that the 3D that interlacing or separated row are realized shows, all needing full line or permutation ground is that whole piece ground pastes reflection type polarization film 101/102 and polarization conversion film 103 on the LED display surface.Be relatively to implement, earlier the reflection type polarization film be attached to polarization conversion film 103 surfaces, polarization conversion film 103 be a quarter wave plate, and its optical axis direction is 45 ° of angles with the polarization direction of left reflection type polarization film 101 and right reflection type polarization film 102 respectively.Be cut into respectively with 101 of the left reflection type polarization films of polarization conversion film 103 and 102 of right reflection type polarization films by left and right polarization state direction.The polarization polarization angle of left side reflection type polarization film 101 and right reflection type polarization film 102 is 90 ° of angles each other, can distinguish transmissive left side polarized light (P
L) and right polarized light (P
R).Film bar width is consistent with LED lamp pearl spacing.Left and right respectively then vertically alternately array or upper and lower horizontal interlaced alternative array are adjacent pastes with 101 of the left reflection type polarization films of polarization conversion film 103 and 102 of right reflection type polarization films at a distance from row, cover the whole LED display screen.
Figure 10 is that one embodiment of the invention arc 3D shows the assembly unit synoptic diagram.With respect to the 3D projection; Another advantage of the present invention can realize that arc 3D shows, because LED display can be that rectangle or square LED array display unit 10 are assembled, through led array display unit 10 surface coverage polarization of the present invention is strengthened composite membrane; Again led array display unit 10 being carried out arc is assembled into; Form arc 3D and show, give spectators more real 3D visual effect, be highly suitable for large-scale movie theatre, stage effect.
Further, arc is further expanded into closed ring, can show by 360 ° of panorama 3D, realize the 3D visual effect on the spot in person of shock more.
Though more than show especially and described the present invention with reference to said embodiment, one skilled in the art will appreciate that and can make change, and can not depart from the scope of the present invention its form and details.Therefore, more than describe and be intended to provide example embodiment of the present invention, and the scope of the invention does not receive the restriction of this concrete example that provides.
Claims (10)
1. 3D LED display that can strengthen the polarization light efficiency comprises:
LED display, by the LED lamp pearl that contains R, G, B three-color light-emitting chip at least according to pixels array form, can realize full-color demonstration;
The reflection type polarization film can make the staggered respectively orthogonal left polarized light (P of polarization direction that sends of adjacent LED lamp pearl
L) and right polarized light (P
R), and the reflected back reflection type polarization film polarization direction vertical S polarized light corresponding with every LEDs;
The polarization conversion film, between LED lamp pearl and reflection type polarization film, the S polarized light that every LED lamp integument is returned is turned back for twice through being transformed into corresponding left polarized light (P behind the polarization conversion film
L) and right polarized light (P
R), thereby strengthen left polarized light (P simultaneously
L) and right polarized light (P
R) output.
2. the 3D LED display that strengthens the polarization light efficiency according to claim 1; It is characterized in that: but said reflection type polarization film burst is corresponding one by one with single LED lamp pearl, makes LED lamp pearl by the staggered orthogonal left polarized light (P of polarization direction that sends of left and right, the upper and lower LED lamp pearl that is adjacent
L) and right polarized light (P
R).
3. the 3D LED display that strengthens the polarization light efficiency according to claim 1; It is characterized in that: said reflection type polarization film can be two full slice systems left side reflection type polarization films and right reflection type polarization film and is mutually 90 ° of angles by polarization direction and is formed by stacking, respectively transmission left side polarized light (P
L) and right polarized light (P
R).
4. the 3D LED display that strengthens the polarization light efficiency according to claim 3; It is characterized in that: the separated successively position perforate of spacing of the LED lamp pearl of LED display is pressed in left reflection type polarization film and the equal upper and lower, left and right of right reflection type polarization film; Perforate on the reflection type polarization film of a left side and the non-perforate position center-aligned on the right reflection type polarization film, the non-perforate position center-aligned on perforate center on the right reflection type polarization film and the left reflection type polarization film.
5. the 3D LED display that strengthens the polarization light efficiency according to claim 4 is characterized in that: align with the LED lamp pearl that shows the left-eye image signal in the center, non-perforate position on the left reflection type polarization film; Align with the LED lamp pearl that shows the eye image signal in center, non-perforate position on the right reflection type polarization film.
6. the 3D LED display that strengthens the polarization light efficiency according to claim 4 is characterized in that: said hole shape can be square, a kind of in rectangle, circle, hexagon or the octagon.
7. the 3D LED display that strengthens the polarization light efficiency according to claim 1; It is characterized in that: said reflection type polarization film can be strip left side reflection type polarization film bar and right reflection type polarization film bar; Width is consistent with LED lamp pearl spacing; The polarization polarization angle of left side reflection type polarization film and right reflection type polarization film is 90 ° of angles, transmissive left side polarized light (P respectively each other
L) and right polarized light (P
R).
8. the 3D LED display that strengthens the polarization light efficiency according to claim 7; It is characterized in that: said left reflection type polarization film bar and right reflection type polarization film bar can left and rightly vertically replace array or upper and lower horizontal interlaced alternative array at a distance from row, cover the whole LED display screen.
9. the 3D LED display that strengthens the polarization light efficiency according to claim 1 is characterized in that: said polarization conversion film is a quarter wave plate, its optical axis direction respectively with left polarized light (P
L) and right polarized light (P
R) polarization direction be 45 ° of angles.
10. the 3D LED display that strengthens the polarization light efficiency according to claim 1 is characterized in that: LED display is sent to left-and right-eye images respectively by a display drive control system and sends out polarized light (P left
L) LED lamp pearl and right polarized light (P
R) LED lamp pearl show by respective pixel.
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