CN102162936A - Display assembly - Google Patents
Display assemblyDownload PDFInfo
- Publication number
- CN102162936A CN102162936ACN2011100298924ACN201110029892ACN102162936ACN 102162936 ACN102162936 ACN 102162936ACN 2011100298924 ACN2011100298924 ACN 2011100298924ACN 201110029892 ACN201110029892 ACN 201110029892ACN 102162936 ACN102162936 ACN 102162936A
- Authority
- CN
- China
- Prior art keywords
- light
- grating
- coloured light
- display module
- optical waveguide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287optical effectEffects0.000claimsabstractdescription157
- 238000004020luminiscence typeMethods0.000claimsdescription46
- 238000009826distributionMethods0.000claimsdescription9
- 239000000758substrateSubstances0.000abstract5
- 238000010586diagramMethods0.000description11
- 238000006073displacement reactionMethods0.000description5
- 239000004568cementSubstances0.000description3
- 229920003229poly(methyl methacrylate)Polymers0.000description3
- 239000004417polycarbonateSubstances0.000description3
- 239000004926polymethyl methacrylateSubstances0.000description3
- 230000008901benefitEffects0.000description2
- 239000003086colorantSubstances0.000description2
- 239000000463materialSubstances0.000description2
- 229920000515polycarbonatePolymers0.000description2
- QIVBCDIJIAJPQS-VIFPVBQESA-NL-tryptophaneChemical compoundC1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1QIVBCDIJIAJPQS-VIFPVBQESA-N0.000description1
- 238000010276constructionMethods0.000description1
- 230000000694effectsEffects0.000description1
- 238000005516engineering processMethods0.000description1
- 239000011521glassSubstances0.000description1
- 239000012994photoredox catalystSubstances0.000description1
Images
Landscapes
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Translated fromChinese
Description
[technical field]
The invention relates to a kind of display module, and particularly relevant for a kind of display module of Autoluminescence.
[background technology]
Existing display module comprises that display base plate, multiple sets of light sources module and a plurality of microwave lead.Have a plurality of optical channels that are arranged in parallel with each other in the display base plate, lead by each microwave and aim at corresponding optical channel respectively, be coupled to respectively in these corresponding optical channels so that the light that light source module sent can be led by each microwave.In addition, dispose drive electrode under the optical channel of display base plate, these drive electrodes can make the refraction index changing of the medium that is connected with optical channel.So, the total reflection of light just can be destroyed in the optical channel, and by the exiting surface outgoing of display base plate, and then reach the effect of demonstration.
Yet in the prior art, the light that light source module sent need be led by the microwave of aiming at optical channel and is coupled in the optical channel, and wherein microwave is led the precision of aiming at optical channel and can seriously be had influence on the efficient that light is coupled to optical channel.In other words, requiring of its assembling precision of existing display module is high, and the complicacy of its assembling is increased.In addition, for showing full-color picture, existing display module need adopt the multiple sets of light sources module, and this design also makes the material cost of existing display module higher.Hold above-mentionedly, how to develop the display module of a kind of assembling precision requirement lower (assembling complicacy lower), desire most ardently one of target of reaching in fact for present developer.
[summary of the invention]
The invention provides a kind of display module, the assembling precision of this display module requires lower (the assembling complicacy is lower).
The invention provides another kind of display module, the assembling precision of this display module requires also lower (the assembling complicacy is lower).
The present invention proposes a kind of display module, and this display module comprises display base plate, optical waveguide, grating and first luminescence component.Display base plate has a plurality of optical channels and light inlet side.Optical channel is parallel to each other and forms a plurality of demonstration picture elements that array disposes jointly, and wherein each optical channel has the inlet that is positioned at display base plate light inlet side.Optical waveguide is arranged at the light inlet side of display base plate.Grating is arranged on the optical waveguide.First luminescence component provides first light.First light enter optical waveguide and behind grating outgoing to the light inlet side of display base plate.First light by grating after diffraction become a plurality of along the different angles outgoing and have first group of coloured light of different wave length.The light that comprises a plurality of different wave lengths in first group of coloured light, the light of these different wave lengths enter corresponding optical channel respectively, with the light source as the demonstration picture element.
The present invention proposes another kind of display module, and this display module comprises display base plate and a plurality of light source module.Display base plate has a plurality of optical channels and light inlet side.Optical channel is parallel to each other and forms a plurality of demonstration picture elements that array disposes jointly.Each optical channel has the inlet that is positioned at this display base plate light inlet side.Each light source module comprises optical waveguide, grating and luminescence component.Optical waveguide is arranged at the light inlet side of display base plate.Grating is arranged on the optical waveguide.Luminescence component provides monochromatic light to enter optical waveguide.Monochromatic light enter optical waveguide and behind grating outgoing to the light inlet side of display base plate.The luminescence component of different light source modules provides the light of different wave length, becomes a plurality of coloured light along the different angles outgoing with diffraction behind self-corresponding grating by each, and these coloured light enter corresponding optical channel with the light source as the demonstration picture element.
Based on above-mentioned, in display module of the present invention, the light diffraction that luminescence component sent can be become along the different angles outgoing and have many groups coloured light of different wave length by being arranged on grating on the optical waveguide.Because of the light in the same group of coloured light parallel to each other, so when the light inlet side at optical waveguide (or grating) and optical channel inlet place was subjected to displacement on the direction vertical with the optical channel bearing of trend, light was coupled to unlikely being seriously influenced of efficient of optical channel.In other words, display module of the present invention is by above-mentioned grating, and the requirement of its assembling precision can be reduced effectively, and makes display module of the present invention be easy to assembling.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
[description of drawings]
Fig. 1 is the display module synoptic diagram of first embodiment of the invention.
Fig. 2 is the display module synoptic diagram of one embodiment of the invention.
Fig. 3, Fig. 4, Fig. 6, Fig. 7 are the grating diagrammatic cross-section of one embodiment of the invention.
Fig. 5 looks synoptic diagram on the grating of one embodiment of the invention.
Fig. 8 is the display module synoptic diagram of second embodiment of the invention.
Fig. 9 is the display module synoptic diagram of third embodiment of the invention.
Figure 10 is the display module synoptic diagram of fourth embodiment of the invention.
[primary clustering symbol description]
100,100A, 100B, 100C, 200: display module
110,210: display base plate
110a, 210a, 210a ': light inlet side
112,114,116,212,214,216: optical channel
112a, 114a, 116a, 212a, 214a, 216a: optical channel inlet
120,222,222A, 222B, 222C: optical waveguide
120a: incidence surface
120b: exiting surface
120c: the optical waveguide back side
130,224: grating
132: microstructure
140,140 ', 226,226A, 226B, 226C: luminescence component
150: lenticule
150a: lenticule convex surface
160: reflector plate
220: light source module
P: show picture element
SE: select electrode
TE: transparency electrode
A1, A2, A3: overlapping
R1, R2, R3: optical channel is the zone partly
P1, P2, P3: son shows picture element
θ: angle
L, L,, L1, L2, L3, L1 ', L2 ', L3 ': light
D: pitch
D: the degree of depth
K: distance
K: spacing
W: width
X, y, z, D1, D2, D3: direction
G, G ': one group of coloured light
[embodiment]
[first embodiment]
Fig. 1 isdisplay module 100 synoptic diagram of first embodiment of the invention.Please refer to Fig. 1, thedisplay module 100 of present embodiment comprisesdisplay base plate 110,optical waveguide 120,grating 130 and first luminescence component 140.In the present embodiment,display base plate 110 can have a plurality of optical channels 112,114,116 and light inlet side 110a, these optical channels 112,114,116 for example are to be parallel to each other and to form a plurality of demonstration picture element P of array configuration jointly, and each optical channel 112,114,116 has the light inlet side 110a that inlet 112a, 114a, 116a are positioned atdisplay base plate 110.
In more detail, the below of the optical channel 112,114,116 of present embodiment is configurable to have many to select electrode SE and transparency electrode TE, wherein select electrode SE parallel and overlapping with optical channel 112,114,116 respectively, transparency electrode TE is vertical and overlapping with optical channel 112,114,116 respectively.When selecting between electrode SE and transparency electrode TE potential difference (PD) to be arranged, select therewith electrode SE therewith the overlapping A1 correspondence of transparency electrode TEoptical channel 112 partly region R 1 just can scatter light, and become a son demonstration picture element P1.Similarly, theoptical channel 114 corresponding with selecting electrode SE and another overlapping A2 of transparency electrode TE partly region R 2 also can scatter light, shows picture element P2 and become another son.Similarly, also can scatter light with the optical channel that an overlapping A3 the is corresponding again 116 part region R 3 of selecting electrode SE with transparency electrode TE, a son shows picture element P3 and become again.For example, as if subregion R1, the R2 of optical channel 112,114,116, the coloured light that R3 can scatter different colours separately, then this a little demonstration picture element P1, P2, P3 can constitute a demonstration picture element P.
In the present embodiment,optical waveguide 120 can be arranged at the light inlet side 110a of display base plate 110.Say that further theoptical waveguide 120 of present embodiment hasincidence surface 120a and exitingsurface 120b,incidence surface 120a andexiting surface 120b have angle theta.In the present embodiment, angle theta for example is 90 °, but the invention is not restricted to this, and angle theta also can be done different designs according to the practical design demand.In addition,first luminescence component 140 is arranged atincidence surface 120a, and exitingsurface 120b is then towards the light inlet side 110a of display base plate 110.In the present embodiment,optical waveguide 120 is suitable for light L thatfirst luminescence component 140 is sent and transmits towardinlet exiting surface 120b equably.The material of theoptical waveguide 120 of present embodiment can be polymethylmethacrylate (polymethyl methacrylate, PMMA), (polycarbonate, PC) or glass, but the present invention is not as limit for polycarbonate.
In the present embodiment,grating 130 is provided with on the optical waveguide 120.Say that further thegrating 130 of present embodiment can be arranged at and exitingsurface 120b opposing backside surface 120c.So, the invention is not restricted to this, in other embodiments, grating 130 also can be arranged at theexiting surface 120b ofoptical waveguide 120, for example is shown in Fig. 2.Certainly, theexiting surface 120b ofoptical waveguide 120 andback side 120c also can be provided with grating 130 simultaneously.In addition, pitch (pitch) D of thegrating 130 of present embodiment can for example be shown in Figure 3 between 250 nanometer to 475 nanometers.Detailed speech, the Wavelength distribution of the light L that the pitch D of grating can be sent according tofirst luminescence component 140 designs.For example, the Wavelength distribution of the light L that is sent whenfirst luminescence component 140 is between 400 nanometer to 700 nanometers when (being visible light wavelength distribution range), and the pitch D ofgrating 130 is preferably between 325 nanometer to 400 nanometers.So the invention is not restricted to this, when the Wavelength distribution of the light L that is sent whenfirst luminescence component 140 comprised black light district (i.e. 320 nanometer to 400 nanometers), the pitch of grating (pitch) D was also between 250 nanometer to 475 nanometers.
In the present embodiment, grating 130 can comprise a plurality ofmicrostructures 132, and wherein the space D (being the pitch D of grating) of 132 of each microstructures for example is fixed value.So, the invention is not restricted to this, in other embodiments, the space D that each microstructure is 132 also can design according to the light intensity distributions of light L onoptical waveguide 120 back side 120c.For example, when the light intensity distributions on theback side 120c ofdistance incidence surface 120a that end far away is more weak,back side 120c can be gone up the stronger zone of light intensity distributions, the space D design ground that a plurality of microstructures on it are 132 is narrower, so that can bigger angle pass by the light L of thenarrower microstructure 132 of these space D, and enter, and then increase the homogeneity ofdisplay module 100 apart from theincidence surface 120a optical channel 112,114,116 far away.Say that further the pitch D of grating (being the space D of 132 of each microstructures) can carry out various design according to the practical design demand.
In the present embodiment, grating 130 has fixing depth d, for example is shown in Fig. 3.Anticipate promptly, grating 130 can comprise a plurality ofmicrostructures 132, and wherein the depth d of eachmicrostructure 132 is all identical.So, the invention is not restricted to this, in other embodiments, grating 130 also can have two or more depth d.For example, in other embodiments, grating 130 also can be had a gradual change depth d.Anticipate promptly, grating 130 can comprise a plurality ofmicrostructures 132, and wherein the depth d of eachmicrostructure 132 can be inequality.For example, the depth d of eachmicrostructure 132 can deepen greatly and gradually along with becoming apart from K of itself andincidence surface 120a, for example is shown in Fig. 4.Say that further thegrating 130 of this kind depth d gradual change can make light L conduct more equably inoptical waveguide 120, and then light L is entered in each optical channel 112,114,116 more equably.In other words, thegrating 130 of this depth d gradual change can make the homogeneity ofdisplay module 100 better.
In the present embodiment, grating 130 can comprise a plurality ofmicrostructures 132, and thesemicrostructures 132 for example are a plurality of rectangular columns parallel to each other.In detail, if incidence surface 110a is positioned at the x-z plane, then thesemicrostructures 132 can be a plurality of rectangular columns that extend along the x direction, for example are shown in Fig. 5.So, the invention is not restricted to this, in other embodiments,microstructure 132 also can be isosceles triangle post (as shown in Figure 6), right-angle triangle post (as shown in Figure 7), other polygon post or erose cylinder.What deserves to be mentioned is that the shape ofmicrostructure 132 and configuration mode can influence the diffraction efficient (diffraction efficiency) of 130 couples of light L of grating.In other words, the deviser can optimize the diffraction efficient of (optimax) grating 130 by the shape (or configuration mode) that changesmicrostructure 132.
For example, if thesemicrostructures 132 be a plurality of parallel to each other and along the isosceles triangle post (shown in Figure 6) of x direction extension, wherein the base width of each isosceles triangle post and the degree of depth are respectively W and d, the spacing of each isosceles triangle intercolumniation is k, then dark more when the depth d of isosceles triangle post, fill up the big more or depth-to-width ratio (W/d) of rate (W/K) when big more, the diffraction efficient of grating 130 is good more.Particularly, if the rate of filling up (W/K) of these microstructures 132 (isosceles triangle post) and depth-to-width ratio (W/d) be all greater than 0.5 o'clock, the diffraction efficient of grating 130 is good.
For example, in the present embodiment, after the first light L entered optical waveguide 120 by incidence surface 120a, diffraction became first group of coloured light G of many groups by grating 130.Embodiment with Fig. 2 illustrates, first group of coloured light G can comprise the first coloured light L1, the second coloured light L2 and the 3rd coloured light L3, and wherein the first coloured light L1, the second coloured light L2 and the 3rd coloured light L3 enter the corresponding first coloured light passage 112, the second coloured light passage 114 and the 3rd coloured light passage 116 respectively.Particularly, the first coloured light L1, the second coloured light L2 and the 3rd coloured light L3 can be respectively red light, green light and blue light, the first coloured light passage 112, the second coloured light passage 114 and the 3rd coloured light passage 116 can be respectively red light channel, blue light channel and green light channel, red light enters corresponding red channels, blue light enters corresponding blue light passage, and green light enters corresponding green light passage.In addition, these optical channels (for example 112,114,116) are the order repeated arrangement with the first coloured light passage 112, the second coloured light passage 114 and the 3rd coloured light channel 116.For example, in the present embodiment, red light channel, green light channel and blue light channel can be according to this in proper order along negative z direction repeated arrangement.
In the present embodiment, because of the first coloured light L1, the second coloured light L2 among same group of first group of coloured light G of the diffraction of grating 130 and the 3rd coloured light L3 can be respectively with three different direction D1, D2, D3 outgoing in optical waveguide 120, and then can enter the first coloured light passage 112, the second coloured light passage 114 and the 3rd coloured light passage 116 of three different positions respectively.What deserves to be mentioned is that the direction of each first coloured light L1 (or each second coloured light L2, each the 3rd coloured light L3) outgoing in optical waveguide 120 on the same group is not parallel to each other.Thus, when the light inlet side 110a of optical waveguide 120 (or grating 130) and display base plate 110 has displacement on the z direction, be both along another first coloured light L1 (or second group of coloured light L2 or the 3rd group of coloured light L3) that organizes among first group of coloured light G of direction D1 (or direction D2 or direction D3) outgoing and still can enter in the first coloured light passage 112 (or the second coloured light passage 114 or the 3rd coloured light passage 116) of former correspondence.In other words, the display module 100 of present embodiment can reduce effectively by the requirement of grating 130 with its assembling precision, and makes its easy assembling.
Thedisplay module 100 of present embodiment can further comprise a plurality oflenticules 150, and theselenticules 150 can be arranged atinlet lenticule 150 of present embodiment can be the plano-convex lens of radius-of-curvature between 0.25～0.33 centimetre, itsconvex surface 150a is towards exitingsurface 120b, itsconvex surface 150a is towardsinlet inlet 112a, the 114a of optical channel, the light inlet side 110a at 116a place.
In the present embodiment,lenticule 150 mainly is to be used for the first light L1 (or the second light L2 or the 3rd light L3) in is on the same group not focused to among theinlet 112a (or 114a or 116a) of first optical channel 112 (or secondoptical channel 114 or the 3rdoptical channel 116).In other words, theselenticules 150 can make the first light L1 (or the second light L2 or the 3rd light L3) enter more efficiently in first optical channel 112 (or secondoptical channel 114 or the 3rd optical channel 116), with the light source as demonstration picture element P.In the present embodiment, theselenticules 150 can stick together on light inlet side 110a by optical cement, the refractive index of optical cement can be arranged in pairs or groups with the refractive index oflenticule 150, so that the efficient that the first light L1 (or the second light L2 or the 3rd light L3) enters in first optical channel 112 (or secondoptical channel 114 or the 3rd optical channel 116) is better.For example, the refractive index oflenticule 150 can be 1.58, and the refractive index of optical cement can be 1.2.
Thedisplay module 100 of present embodiment more can comprisereflector plate 160, is arranged at theback side 120c with respect to exitingsurface 120b of optical waveguide 120.In the present embodiment,reflector plate 160 can be with in the light L reflectedlight waveguide 120 that passes fromback side 120c, and then increases the light utilization ratio of thedisplay module 100 of present embodiment.
[second embodiment]
Fig. 8 is the display module 100A synoptic diagram of second embodiment of the invention.Please refer to Fig. 8, the display module 100A of present embodiment and thedisplay module 100 of first embodiment are similar, and therefore identical with Fig. 1 assembly is with identical symbolic representation.Below just both different locating do explanation, identical locating just no longer repeats.
The display module 100A of present embodiment comprisesdisplay base plate 110,optical waveguide 120, grating 130 and first luminescence component 140.The display module 100A of present embodiment more comprises second luminescence component 140 ', this second luminescence component 140 ' is arranged at the side 120d ofrelative incidence surface 120a, this second luminescence component 140 ' provides the second light L ' to enteroptical waveguide 120, and behind grating 130 outgoing to the light inlet side 110a ofdisplay base plate 110, the second light L ' becomes a plurality of along the different angles outgoing and have second group of coloured light G ' of different wave length by grating 130 back diffraction, and include the light of a plurality of different wave lengths among second group of coloured light G ', the light of these different wave lengths enters corresponding optical channel respectively, and (for example optical channel 112,114,116), with light source as demonstration picture element P.In the present embodiment,first luminescence component 140 and second luminescence component 140 ' are all white-light emitting assembly, for example white light emitting diode.
In the present embodiment, but go out first group of coloured light G of many groups by grating 130 institute's diffraction by the light L that first luminescence component 140 sends, the light L ' that sends by second luminescence component 140 ' but go out second group of coloured light G ' of many groups by grating 130 diffraction, wherein the color distribution of first group of coloured light G and second group of coloured light G ' is the mirror image symmetry.Detailed speech, first group of coloured light G can comprise the first coloured light L1, the second coloured light L2 and the 3rd coloured light L3, second group of coloured light G ' can comprise the first coloured light L1 ', the second coloured light L2 ' and the 3rd coloured light L3 ', wherein the 3rd coloured light L3 and the 3rd coloured light L3 ' can be overlapping and be left exiting surface 120b along the y direction, the second coloured light L2 and the second coloured light L2 ' serve as that axle forms the mirror image symmetry with the direction of the 3rd coloured light L3 (or the 3rd coloured light L3 ') outgoing exiting surface 120b, and the first coloured light L1 and the first coloured light L1 ' serve as that axle forms the mirror image symmetry with the direction of the 3rd coloured light L3 (or the 3rd coloured light L3 ') outgoing exiting surface 120b also.
In the present embodiment, the first coloured light L1 (or L1 '), the second coloured light L2 (or L2 ') and the 3rd coloured light L3 (or L3 ') enter the corresponding firstcoloured light passage 112, the secondcoloured light passage 114 and the 3rd colouredlight passage 116 respectively.Particularly, the first coloured light L1 (or L1 '), the second coloured light L2 (or L2 ') and the 3rd coloured light L3 (or L3 ') can be respectively red light, green light and blue light, the firstcoloured light passage 112, the secondcoloured light passage 114 and the 3rd colouredlight passage 116 can be respectively red light channel, blue light channel and green light channel, red light enters corresponding red channels, blue light enters corresponding blue light passage, and green light enters corresponding green light passage.
In the present embodiment, optical channel the 112,114, the 116th is with the order repeated arrangement of the firstcoloured light passage 112, the secondcoloured light passage 114, the 3rd colouredlight passage 116 and second optical channel 114.For example, optical channel 112,114,116,114 is respectively that order with red light channel, green light channel, blue light channel and green light channel is along negative z direction repeated arrangement.
What deserves to be mentioned is that in the present embodiment, the direction of each the first coloured light L1 among different first group of coloured light G (or each second coloured light L2, each the 3rd coloured light L3) outgoing inoptical waveguide 120 is parallel to each other.In addition, the direction of each the first coloured light L1 ' among different second group of coloured light G ' (or each second coloured light L2 ', each the 3rd coloured light L3 ') outgoing inoptical waveguide 120 also is parallel to each other.So, when the light inlet side 110a of optical waveguide 120 (or grating 130) anddisplay base plate 110 had displacement on the z direction, each coloured light L1, L2, L3, L1 ', L2 ', L3 ' still can enter in the corresponding first coloured light passage 112 (or the secondcoloured light passage 114 or the 3rd colouredlight passage 116).In other words, the display module 100A of present embodiment also can reduce effectively by the requirement of grating 130 with its assembling precision, and makes its easy assembling.In addition, because of the both sides of theoptical waveguide 120 of present embodiment all are provided with luminescence component, so the brightness of the display module 100A of present embodiment and inhomogeneity performance are good.
So, present embodiment only illustrates each photochromic path of first group of coloured light G and second group of coloured light G ' apart from the grating 130 of D with particular sections, but the present invention is not as limit, can design each different photochromic paths according to the pitch D ofdifferent gratings 130, also can form the demonstration picture element P of different colours combination simultaneously.
[the 3rd embodiment]
Fig. 9 is thedisplay module 100B synoptic diagram of third embodiment of the invention.Please refer to Fig. 9, thedisplay module 100B of present embodiment and thedisplay module 100 of first embodiment are similar, and only the configuration mode offirst luminescence component 140 of present embodiment is different with the configuration mode among first embodiment.
In the present embodiment,optical waveguide 120 has theincidence surface 120a of exitingsurface 120b and relative exitingsurface 120b, andfirst luminescence component 140 is arranged atincidence surface 120a, and exitingsurface 120b is then towards the light inlet side 110a of display base plate 110.In addition, the grating 130 of present embodiment is arranged at the exiting surface of optical waveguide 120.What deserves to be mentioned is that the light thatfirst luminescence component 140 of present embodiment is sent can pass through the colimated light system adjustment, so that the angle that light can be suitable is by grating 130.Thedisplay module 100B of present embodiment and thedisplay module 100 of first embodiment have similar feature and benefit, just no longer repeat in this.
[the 4th embodiment]
Figure 10 is display module 200 synoptic diagram of fourth embodiment of the invention.Please refer to Figure 10, the display module 200 of present embodiment and thedisplay module 100 of first embodiment are similar, below just both different locating do explanation, identical locating just no longer repeats.
The display module 200 of present embodiment can comprisedisplay base plate 210 and a plurality of light source module 220.In the present embodiment,display base plate 210 has a plurality of optical channels 212,214,216 andlight inlet side 210a, optical channel 212,214,216 is parallel to each other and forms a plurality of demonstration picture element P that array disposes jointly, and each optical channel 212 (or 214 or 216) has thelight inlet side 210a thatinlet 212a (or 214a or 216a) is positioned at display base plate 210.Detailed speech, each optical channel 212 (or 214; Or 216) can havelight inlet side 210a anotherlight inlet side 210a ' relative that twoinlet 212a (or 214a or 216a) lay respectively atdisplay base plate 210 withlight inlet side 210a.
In the present embodiment, eachlight source module 220 can comprise optical waveguide 222, grating 224 and luminescence component 226.Optical waveguide 222 is arranged at thelight inlet side 210a of display base plate 210.Grating 224 is arranged on the optical waveguide 222.Luminescence component 226 provides monochromatic light L to enter optical waveguide 222, and behind grating 224 outgoing to the light inlet side 210 (or 210 ') ofdisplay base plate 210, the luminescence component 226 of wherein differentlight source modules 220 provides the light of different wave length, with at a plurality of coloured light that become by each self-corresponding grating 224 back diffraction along the different angles outgoing, these coloured light enter corresponding optical channel 212 (or 214 or 216), with the light source as demonstration picture element P.
For example, the display module 200 of present embodiment can comprise three light source modules 220 (i.e. the firstlight source module 220A, secondarylight source module 220B, the 3rdlight source module 220C), wherein the firstlight source module 220A can comprise the firstoptical waveguide 222A, thefirst grating 224A and thefirst luminescence component 226A, secondarylight source module 220B can comprise the secondoptical waveguide 222B, thefirst grating 224B and thesecond luminescence component 226B, and the 3rdlight source module 220C can comprise the 3rdoptical waveguide 222C, the 3rd grating 224C and the 3rd luminescence component 226C.In the present embodiment, the firstlight source module 220A and the 3rdlight source module 220C can be arranged at thelight inlet side 210a ofdisplay base plate 210, and secondarylight source module 220B can be arranged at anotherlight inlet side 210a ' relative withlight inlet side 210a.
In the present embodiment, the coloured light that thefirst luminescence component 226A is sent for example is red light, and the coloured light that thesecond luminescence component 226B is sent for example is green light, and the coloured light that the3rd luminescence component 226C is sent for example is blue light.In other words, the firstlight source module 220A, secondarylight source module 220B can provide red light, green light and blue light to enter in the corresponding optical channel 112,114,116 respectively with the 3rdlight source module 220C, with the light source as demonstration picture element P.What deserves to be mentioned is, because of the display module 200 of present embodiment is to utilize differentlight source module 220 to provide different coloured light to enter in thedisplay base plate 210 respectively, so the characteristic of display module 200 its color saturations (color saturation) of present embodiment is good.The present invention is a plurality of along the different angles outgoing and have the coloured light of different wave length to produce through optical grating construction by light, make and have along the different angles outgoing and have the coloured light of different wave length in the exiting surface of optical waveguide, so, the diagram of instructions is only drawn coloured light explanation with the exiting surface of optical waveguide.
In sum, in the display module of one embodiment of the invention, the light diffraction that luminescence component sent can be become along the different angles outgoing and have many groups coloured light of different wave length by being arranged on grating on the optical waveguide.Because of the light in the same group of coloured light parallel to each other, so when the light inlet side at optical waveguide (or grating) and optical channel inlet place was subjected to displacement on the direction vertical with the optical channel bearing of trend, light was coupled to unlikely being seriously influenced of efficient of optical channel.In other words, display module of the present invention is by above-mentioned grating, and the requirement of its assembling precision can be reduced effectively, and makes display module of the present invention be easy to assembling.
In addition, in the display module of another embodiment of the present invention, each luminescence component can be sent light of all kinds and go out by being arranged on grating in each light source module, and then can enter respectively in the corresponding optical channel with different angle diffraction.The light that the same light source module diffraction of reason is gone out is parallel each other, so when light source module was subjected to displacement on the direction vertical with the optical channel bearing of trend with the light inlet side, light was coupled to unlikely being seriously influenced of efficient of optical channel.In other words, the display module of another embodiment of the present invention is by above-mentioned grating, and the requirement of its assembling precision also can be reduced effectively.In addition, because of the display module of another embodiment of the present invention is to utilize different light source modules to provide different coloured light to enter in the display base plate respectively, so the characteristic of its color saturation of the display module of another embodiment of the present invention (color saturation) is good.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (22)
1. display module comprises:
One display base plate has a plurality of optical channels and a light inlet side, and described optical channel is parallel to each other and forms a plurality of demonstration picture elements that array disposes jointly, and each optical channel has this light inlet side that an inlet is positioned at this display base plate;
One optical waveguide is arranged at this light inlet side of this display base plate;
One grating is arranged on this optical waveguide; And
One first luminescence component, provide one first light to enter this optical waveguide, and behind this grating outgoing to this light inlet side of this display base plate, wherein this first light by this grating after diffraction become a plurality of along the different angles outgoing and have one first group of coloured light of different wave length, and include the light of a plurality of different wave lengths in this first group of coloured light, the light of described different wave length also enters corresponding described optical channel respectively, with the light source as described demonstration picture element.
2. display module according to claim 1 is characterized in that, the pitch of this grating (pitch) is between 250 nanometer to 475 nanometers.
3. display module according to claim 1 is characterized in that this grating has the single degree of depth.
4. display module according to claim 1 is characterized in that this grating has the gradual change degree of depth.
5. display module according to claim 1 is characterized in that, more comprises a plurality of lenticules, is arranged at the inlet of described optical channel respectively.
6. display module according to claim 1, it is characterized in that, the light of described different wave length comprises one first coloured light, one second coloured light and one the 3rd coloured light, and described optical channel system is with the order repeated arrangement of the first coloured light passage, the second coloured light passage and the 3rd coloured light channel.
7. display module according to claim 1, it is characterized in that this optical waveguide has an exiting surface and an incidence surface, this exiting surface and this incidence surface have an angle, and this first luminescence component is arranged at this incidence surface, and this exiting surface is then towards this light inlet side of this display base plate.
8. display module according to claim 7 is characterized in that, this grating is arranged at this exiting surface or the back side with respect to this exiting surface of this optical waveguide.
9. display module according to claim 7 is characterized in that, more comprises a reflector plate, is arranged at the back side with respect to this exiting surface of this optical waveguide.
10. display module according to claim 7, it is characterized in that, more comprise one second luminescence component, be arranged at the side of relative this incidence surface, this second luminescence component provides one second light to enter this optical waveguide, and behind this grating outgoing to this light inlet side of this display base plate, this second light by this grating after diffraction become a plurality of along the different angles outgoing and have one second group of coloured light of different wave length, and include the light of a plurality of different wave lengths in this second group of coloured light, the light of described different wave length enters corresponding described optical channel respectively, with the light source as described demonstration picture element.
11. display module according to claim 10 is characterized in that, the color distribution of this first group of coloured light and this second group of coloured light is the mirror image symmetry.
12. display module according to claim 11, it is characterized in that, this first group of coloured light and this second group of coloured light comprise one first coloured light, one second coloured light and one the 3rd coloured light separately, and described optical channel system is with the order repeated arrangement of the first coloured light passage, the second coloured light passage, the 3rd coloured light passage and one second optical channel.
13. display module according to claim 1 is characterized in that, this optical waveguide has the incidence surface of an exiting surface and relative this exiting surface, and this first luminescence component is arranged at this incidence surface, and this exiting surface is then towards this light inlet side of this display base plate.
14. display module according to claim 14 is characterized in that, this grating is arranged at this exiting surface of this optical waveguide.
15. a display module comprises:
One display base plate has a plurality of optical channels and a light inlet side, and described optical channel is parallel to each other and forms a plurality of demonstration picture elements that array disposes jointly, and each optical channel has this light inlet side that an inlet is positioned at this display base plate;
A plurality of light source modules, each light source module comprises:
One optical waveguide is arranged at this light inlet side of this display base plate;
One grating is arranged on this optical waveguide; And
One luminescence component, provide a monochromatic light to enter this optical waveguide, and behind this grating outgoing to this light inlet side of this display base plate, the described luminescence component of wherein different light source modules provides the light of different wave length, become a plurality of coloured light with diffraction behind self-corresponding described grating along the different angles outgoing by each, described coloured light enters corresponding described optical channel, with the light source as described demonstration picture element.
16. display module according to claim 15 is characterized in that, the pitch of described grating (pitch) is between 250 nanometer to 475 nanometers.
17. display module according to claim 15 is characterized in that, described grating has the different degree of depth.
18. display module according to claim 15 is characterized in that, more comprises a plurality of lenticules, is arranged at the inlet of described optical channel respectively.
19. display module according to claim 15, it is characterized in that, the described coloured light of different wave length comprises one first coloured light, one second coloured light and one the 3rd coloured light, and described optical channel system is with the order repeated arrangement of the first coloured light passage, the second coloured light passage and the 3rd coloured light channel.
20. display module according to claim 15, it is characterized in that, each optical waveguide has an exiting surface and an incidence surface, this exiting surface and this incidence surface have an angle, and pairing this luminescence component of this optical waveguide is arranged at this incidence surface, and this exiting surface is towards this light inlet side of this display base plate.
21. display module according to claim 20 is characterized in that, each grating is arranged at this exiting surface or the back side with respect to this exiting surface of pairing this optical waveguide.
22. display module according to claim 20 is characterized in that, each light source module more comprises a reflector plate, be arranged at pairing this optical waveguide the back side with respect to this exiting surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099142846 | 2010-12-08 | ||
| TW099142846ATWI452402B (en) | 2010-12-08 | 2010-12-08 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102162936Atrue CN102162936A (en) | 2011-08-24 |
| CN102162936B CN102162936B (en) | 2014-10-08 |
Family
ID=44464252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110029892.4AExpired - Fee RelatedCN102162936B (en) | 2010-12-08 | 2011-01-21 | display assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102162936B (en) |
| TW (1) | TWI452402B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380087A (en)* | 2012-06-18 | 2015-02-25 | 财团法人工业技术研究院 | Microhole detection device and method |
| CN104380087B (en)* | 2012-06-18 | 2016-11-30 | 财团法人工业技术研究院 | Microhole detection device and method |
| CN106324898A (en)* | 2016-10-28 | 2017-01-11 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN106483751A (en)* | 2016-12-09 | 2017-03-08 | 上海天马微电子有限公司 | Light source structure and stereoscopic display device |
| CN110320588A (en)* | 2018-03-30 | 2019-10-11 | 中强光电股份有限公司 | Optical waveguide device and display |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12204107B2 (en) | 2021-12-16 | 2025-01-21 | Meta Platforms Technologies, Llc | Patterned light illuminator for a display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149445A (en)* | 2007-11-09 | 2008-03-26 | 清华大学 | A grating and its backlight module |
| CN101408673A (en)* | 2004-06-24 | 2009-04-15 | 奥林巴斯株式会社 | Image display apparatus |
| CN101676771A (en)* | 2008-09-17 | 2010-03-24 | 财团法人工业技术研究院 | Optical color light splitting system and display device using same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6665027B1 (en)* | 1999-07-23 | 2003-12-16 | Bae Systems Information And Electronic System Integration Inc | Color liquid crystal display having diffractive color separation microlenses |
| GB0119176D0 (en)* | 2001-08-06 | 2001-09-26 | Ocuity Ltd | Optical switching apparatus |
| TWI251684B (en)* | 2003-08-21 | 2006-03-21 | Ind Tech Res Inst | Diffraction micro-structure color splitting device |
| TWI306963B (en)* | 2004-12-31 | 2009-03-01 | Hon Hai Prec Ind Co Ltd | Light guide plate and backlight module having same |
| TWI334046B (en)* | 2007-07-10 | 2010-12-01 | Au Optronics Corp | Color filterless liquid crystal display device |
| TWI381218B (en)* | 2008-08-08 | 2013-01-01 | Ind Tech Res Inst | System for optical color division and displaying apparatus in application |
- 2010
- 2010-12-08TWTW099142846Apatent/TWI452402B/ennot_activeIP Right Cessation
- 2011
- 2011-01-21CNCN201110029892.4Apatent/CN102162936B/ennot_activeExpired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408673A (en)* | 2004-06-24 | 2009-04-15 | 奥林巴斯株式会社 | Image display apparatus |
| CN101149445A (en)* | 2007-11-09 | 2008-03-26 | 清华大学 | A grating and its backlight module |
| CN101676771A (en)* | 2008-09-17 | 2010-03-24 | 财团法人工业技术研究院 | Optical color light splitting system and display device using same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380087A (en)* | 2012-06-18 | 2015-02-25 | 财团法人工业技术研究院 | Microhole detection device and method |
| CN104380087B (en)* | 2012-06-18 | 2016-11-30 | 财团法人工业技术研究院 | Microhole detection device and method |
| CN106324898A (en)* | 2016-10-28 | 2017-01-11 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN106324898B (en)* | 2016-10-28 | 2017-08-25 | 京东方科技集团股份有限公司 | Display panel and display device |
| US10444558B2 (en) | 2016-10-28 | 2019-10-15 | Boe Technology Group Co., Ltd. | Display panel and display device |
| CN106483751A (en)* | 2016-12-09 | 2017-03-08 | 上海天马微电子有限公司 | Light source structure and stereoscopic display device |
| CN110320588A (en)* | 2018-03-30 | 2019-10-11 | 中强光电股份有限公司 | Optical waveguide device and display |
| US10871613B2 (en) | 2018-03-30 | 2020-12-22 | Coretronic Corporation | Optical waveguide apparatus and display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102162936B (en) | 2014-10-08 |
| TWI452402B (en) | 2014-09-11 |
| TW201224623A (en) | 2012-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102214346B1 (en) | Backlighting based on diffractive multibeam element | |
| TWI680329B (en) | Polychromatic grating-coupled backlight, electronic display, and method of backlight operation | |
| CN110140008B (en) | Multi-view backlighting using fluorescent multibeam elements | |
| EP3256776B1 (en) | White light source | |
| US11016238B2 (en) | Light source and multiview backlight using the same | |
| JP6804525B2 (en) | Time-multiplexed backlight and multi-view display using it | |
| US8746923B2 (en) | Control of luminous intensity distribution from an array of point light sources | |
| KR102235966B1 (en) | Dual-way collimator | |
| CN102686934A (en) | Lighting device and lighting apparatus provided with same | |
| KR20170016951A (en) | High contrast rear projection screen for use with a diverging illumination source | |
| CN102650740A (en) | Composite color wavelength division system | |
| CN102162936A (en) | Display assembly | |
| US20140092628A1 (en) | Illumination device | |
| KR102642698B1 (en) | Light source with bipartite emission pattern, multi-view backlight, and method | |
| CN103899990B (en) | Backlight module and display device | |
| KR20130040088A (en) | Double stack micro lens array | |
| TWI812239B (en) | Light-emitting module | |
| CN220671745U (en) | Dodging component | |
| US10895362B2 (en) | Lighting device having a plurality of light sources and a light guide | |
| CN117174810A (en) | Light module | |
| CN114242704A (en) | Display device | |
| HK40015316A (en) | Light source and multiview backlight using the same | |
| JP2005005038A (en) | Lighting device | |
| CN104755834A (en) | A lighting device | |
| HK1251042A1 (en) | Polychromatic grating-coupled backlighting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20141008 Termination date:20210121 | |
| CF01 | Termination of patent right due to non-payment of annual fee |