Source: https://patents.google.com/patent/CN103681734B/en
Timestamp: 2020-01-22 15:15:52
Document Index: 143579783

Matched Legal Cases: ['art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 105', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 205', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 405', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 505', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art 605', 'art.\n15']

CN103681734B - Oled device and manufacture method thereof - Google Patents
Oled device and manufacture method thereof Download PDF
CN103681734B
CN103681734B CN201210558670.6A CN201210558670A CN103681734B CN 103681734 B CN103681734 B CN 103681734B CN 201210558670 A CN201210558670 A CN 201210558670A CN 103681734 B CN103681734 B CN 103681734B
CN201210558670.6A
CN103681734A (en
韩敞旭
2012-09-26 Priority to KR10-2012-0107004 priority
2012-12-20 Application filed by 乐金显示有限公司 filed Critical 乐金显示有限公司
2014-03-26 Publication of CN103681734A publication Critical patent/CN103681734A/en
2016-09-07 Publication of CN103681734B publication Critical patent/CN103681734B/en
Open a kind of oled device and manufacture method thereof.Oled device includes: substrate；It is arranged in the lamination between the first electrode and the second electrode on the substrate, wherein, described lamination includes having the first lamination of the first blu-ray layer and be arranged on described first lamination and have the second lamination of the second blu-ray layer, and at the subregion of described first lamination, it is formed with the first luminescent layer, and is formed with the second luminescent layer at the subregion of described second lamination.
Oled device and manufacture method thereof
The present invention relates to a kind of oled device, more particularly, to simplifying process and raising The oled device of light efficiency.
Recent years, along with multimedia development, the importance of flat faced display (FPD) increases.In order to meet need Ask, such as liquid crystal display (LCD), plasma display (PDP), Field Emission Display (FED) and The such various display of oled device put into actually used.
Specifically, oled device is selfluminous device, and it represents the quick response of 1ms or less Time and low-power consumption.Additionally, due to oled device has the viewing angle of excellence, so organic light emission two Pole pipe device as moving image display medium is useful and size of with device is unrelated.Further, since organic light-emitting diodes Pipe device can be based on existing semiconductor processing techniques, and simple in low temperature manufacture and its manufacturing process, it is by conduct Flat faced display of future generation arouses attention.
Oled device includes negative electrode, anode and folder organic luminous layer between a cathode and an anode.From the moon The electronics that pole provides and the hole provided from anode are compound to form exciton at luminescent layer.Exciton transits to base from excited state State, thus luminous.
Oled device is by as various mechanical developments.In these structures, white organic LED Device is developed as the stacked structure of red light luminescent layer, green light emitting layer and blue light-emitting, or yellow-green is luminous Layer and the stacked structure of blue light-emitting.But, white organic LED device presents low color purity and height drives Galvanic electricity pressure, and wherein productivity ratio reduces.
It is desirable to provide a kind of process can be simplified, improve luminous efficiency and reduce the organic light-emitting diodes of power consumption Pipe device.
In one aspect, the invention provides a kind of oled device, this oled device bag Include: substrate；It is arranged in the lamination between the first electrode and the second electrode, wherein, described lamination bag on the substrate Include and there is the first lamination of the first blu-ray layer and be arranged on described first lamination and there is the second of the second blu-ray layer Lamination, and at the subregion of described first lamination, it is formed with the first luminescent layer, and at described second lamination The second luminescent layer it is formed with at subregion.
On the other hand, it is provided that a kind of method manufacturing oled device, described method includes: at base The first electrode is formed on plate；Forming the first lamination, the step of this formation the first lamination includes using the first mask being formed Have on the substrate of described first electrode and form the first luminescent layer, and use the second mask shape on described first luminescent layer Become the first blu-ray layer；Forming the second lamination, the step of this formation the second lamination includes using described first mask being formed Have on the substrate of described first lamination and form the second luminescent layer, and use described second mask at described second luminescent layer Upper formation the second blu-ray layer；And form the second electrode on the substrate being formed with described second lamination.
Accompanying drawing is included to provide a further understanding of the present invention, and is attached in the application and constitutes the application A part, these accompanying drawings are exemplified with embodiments of the present invention, and for explaining that the present invention's is former together with description Reason.In the accompanying drawings:
Fig. 1 is the figure illustrating oled device according to an illustrative embodiment of the invention；
Fig. 2 A to Fig. 2 E is the oled device illustrating manufacture according to the first embodiment of the invention The sectional view of method；
Fig. 3 A and Fig. 3 B is to illustrate the first mask and the plane graph of the second mask respectively；
Fig. 4 is the sectional view illustrating oled device second embodiment of the invention；
Fig. 5 A to Fig. 5 E is the oled device illustrating manufacture second embodiment of the invention The sectional view of method；
Fig. 6 A and Fig. 6 B is to illustrate the first mask and the plane graph of the second mask respectively；
Fig. 7 is the sectional view of the oled device illustrating the manufacture according to third embodiment of the present invention；
Fig. 8 is the sectional view of the oled device of the manufacture illustrating the 4th embodiment according to the present invention；
Fig. 9 is the sectional view of the oled device of the manufacture illustrating the 5th embodiment according to the present invention；
Figure 10 is the schematic diagram of the oled device of the manufacture illustrating the comparative example according to the present invention；
Figure 11 is the curve chart of the spectrum of the oled device illustrating the comparative example according to the present invention；
Figure 12 is the curve of the blue spectrum of the oled device illustrating the comparative example according to the present invention Figure；And
Figure 13 is HONGGUANG and the green glow indigo plant of the oled device illustrating the 4th embodiment according to the present invention The curve chart of light spectrum.
Embodiments of the present invention are described more fully below, are illustrated its example in the accompanying drawings.As far as possible whole attached Figure represents same or like component by identical reference.It should be noted that if it is determined that this technology will mislead the present invention's Embodiment, then omit the detailed description of known technology.
Fig. 1 is the figure illustrating oled device according to an illustrative embodiment of the invention.
With reference to Fig. 1, oled device 100 according to the first embodiment of the invention can be launch red, The oled device of the light of green and blue wavelength.In first embodiment of the present invention, three sub-pixel groups Become a unit picture element.Each sub-pixel includes launching red light-emitting part 105R of HONGGUANG, launching the green of green glow Light luminous component 105G and blue light emitting part 105B of transmitting blue light, and realize full color.
According to the first embodiment of the invention oled device 100 includes being arranged at the first electrode 130 and the second lamination ST being arranged on substrate 110 between electrode 170.Lamination ST includes having the first blue light First lamination 1ST of layer 145 folds with being arranged on the first lamination 1ST and having the second of the second blu-ray layer 165 The 2ST of layer.
Specifically, substrate 110 can be by clear glass or plastics or wherein can be with the conductive material system of transmission light Become.Substrate 110 is disposed with red color filter 120R and green color filter 120G, in red light-emitting part 105R On be disposed with red color filter 120R, and green color filter 120G is disposed in green luminescence part 105G.Red Color color filter 120R and green color filter 120G is for launching redness and green respectively with green and red mixed light The light of wavelength.First electrode 130 be transparent anode and by tin indium oxide (ITO), indium zinc oxide (IZO) or One in zinc oxide (ZnO) is made.
First lamination 1ST forms a light-emitting device unit, and includes the first blu-ray layer 145.Specifically, HONGGUANG Luminous component 105R and green luminescence part 105G include the first luminescent layer 140.The first common shape of blu-ray layer 145 Become at red light-emitting part 105R, green luminescence part 105G and blue light emitting part 105B.First luminescent layer 140 are not formed at blue light emitting part 105B.
First luminescent layer 140 launches HONGGUANG or green glow.Such as, when green glow launched by the first luminescent layer 140, permissible By with the doping of green glow phosphorescent dopants selected from CBP(4,4'-N, N'-bis-carbazole biphenyl) and Balq(couple of (2-methyl-8- Hydroxyquinoline-N1, O8)-(1,1'-biphenyl-4-hydroxyl) aluminum) in a kind of host form the first emission layer 140.When first When HONGGUANG launched by luminescent layer 140, by with selected from iridium (manganoporphyrin) 3 (Ir (Mnpy) 3), Btp2Ir (acac) (double (2O-benzene And [4,5-a] thienyl) pyridine-N, C3O) iridium (acetylacetone,2,4-pentanedione) and Btp2Ir (acac) (iridium (III) double (1-phenyl isoquinolin quinoline base) At least one HONGGUANG phosphorescent dopants doping in acetyl selected from CBP(4,4'-N, N'-bis-carbazole biphenyl) and Balq It is luminous that a kind of host in (double (2-methyl-8-hydroxyquinoline-N1, O8)-(1,1'-biphenyl-4-hydroxyl) aluminum) forms first Layer 140.
First blu-ray layer 145 is arranged in the first luminescent layer of red light-emitting part 105R and green luminescence part 105G On 140, and the first blu-ray layer 145 is collectively arranged at blue light emitting part 105B.Such as, the first blu-ray layer 145 by with blue phosphor adulterant (double (diphenylamine) pyrene (1,6-Bis (diphenylamine) pyrene) of 1,6-, TBPe (four (tert-butyl group) perylene) or 4'-N, N-diphenylaminostyrene base-triphenyl (DPA-TP)), dark blue Adulterant (25,2', 5'-tetraphenyl ethylene base diphenyl biphenyl (TSB) or anthracene derivant (anthrancene derivative), P-bis-(p-N, N-diphenyl-aminostyryl and) benzene or benzyl ring pentadiene (phenylcyclopentadiene)) doping Host material AND (9,10-bis-(2-naphthyl) anthracene) or DPVBi (double (2,2-stilbene-1-the base)-biphenyl of 4,4'-).
First blu-ray layer 145 is arranged in the first luminescent layer of red light-emitting part 105R and green luminescence part 105G On 140, and the first blu-ray layer 145 is collectively arranged at blue light emitting part 105B.In blue light emitting part 105B The first blu-ray layer 145 in, in the energy jump of host to adulterant thus blue light is launched.But, send out in HONGGUANG In first blu-ray layer 145 of light part 105R and green luminescence part 105G, the energy of host does not transit to doping In agent but transit to have in the adulterant of the first luminescent layer 140 of little energy level difference so that the first blu-ray layer 145 The most luminous but transmission energy.
It addition, the first lamination 1ST also includes be formed between the first electrode 130 and the first luminescent layer 140 first Hole injection layer (HIL) 131 and the first hole transporting layer (HTL) 132.First hole injection layer 131 can hold Change places and inject hole from the first electrode 130 to the first luminescent layer 140.First hole injection layer 131 can by choosing freely CuPc (CuPc), poly-3,4-ethylenedioxy thiophene (PEDOT), polyaniline (PANI) and N, N-naphthyl-N, N'- At least one in the group that diphenylbenzidine (NPD) forms is made, but the invention is not restricted to this.First hole Transfer layer (132) can be by choosing free N, N-dinaphthyl-N,N' diphenyl benzidine (NPD), double (the 3-toluene of N, N'- Base) double (the phenyl)-benzidine (TPD) of-N, N'-, s-TAD and (4,4', 4 "-three (N-3-methylphenyl-N-phenyl amino) At least one selected in the group that triphenylamine (MTDATA) forms is made, but the invention is not restricted to this.
First lamination 1ST also includes the first electron supplying layer (ETL) 135 He being formed in the first blu-ray layer 145 First electron injecting layer (EIL) 136.First electron supplying layer 135 carries electronics for easily.First electronics is defeated Send layer 135 can by choosing freely three (8-hydroxyquinoline) aluminum (Alq3), PBD, TAZ, volution-PBD, BAlq and At least one selected in the group of Salq composition is made, but the invention is not restricted to this.First electron injecting layer 136 For being easily injected into electronics, and Alq3(tri-(8-hydroxyquinoline) aluminum can be used), PBD, TAZ, volution-PBD, BAlq or SAlq, but the invention is not restricted to this.First electron injecting layer 136 can also include such as alkali metal Or the such metallic compound of alkaline-earth metal.
First hole injection layer the 131, first hole transporting layer the 132, first blu-ray layer 145 on first electrode 130, First electron supplying layer 135 and the first electron injecting layer 136 form the first lamination 1ST.In red light-emitting part 105R And it is also provided with first between the first hole transporting layer 132 and the first blu-ray layer 145 at green luminescence part 105G Luminescent layer 140.
Second lamination 2ST is arranged in above the first lamination 1ST, and includes the second blu-ray layer 165.Specifically, red Light luminous component 105R and green luminescence part 105G include the second luminescent layer 160, and the second blu-ray layer 165 It is commonly formed at red light-emitting part 105R, green luminescence part 105G and blue light emitting part 105B, but It is that the second luminescent layer 160 is not formed at blue light emitting part 105B.
If the first luminescent layer 140 is configured to launch in HONGGUANG and green glow, then the second luminescent layer 160 is launched Remaining light.Such as, if the first luminescent layer 140 is the red light luminescent layer for launching HONGGUANG, then the second luminescent layer 160 become the green light emitting layer for launching green glow.Second blu-ray layer 165 has identical with the first luminescent layer 140 Structure.Second blu-ray layer 165 is arranged in second luminescent layer 160 of red light luminescent layer 105R and green light emitting layer 105G On, and the second blu-ray layer 165 is collectively arranged at blue light emitting part 105B.In blue light emitting part 105B The second blu-ray layer 165 in, in the energy jump of host to adulterant thus blue light is launched.But, send out in HONGGUANG In second blu-ray layer 165 of light part 105R and green luminescence part 105G, the energy of host does not transit to doping In agent but transit to have in the adulterant of the second luminescent layer 160 of little energy level difference so that the second blu-ray layer 165 The most luminous but transmission energy.
It addition, the second lamination 2ST also includes the 2nd HIL between the first lamination 1ST and the second luminescent layer 160 155 and second hole transporting layer 156, and also include the second electron supplying layer 157 being positioned in the second blu-ray layer 165 With the second electron injecting layer 158.2nd HIL155, second hole transporting layer the 156, second electron supplying layer 157 It is respectively provided with and first hole injection layer the 131, first hole transporting layer 132, first with the second electron injecting layer 158 The structure that electron supplying layer 135 is identical with the first electron injecting layer 136.
Therefore, second hole injection layer the 155, second hole transporting layer the 156, second blue light on the first lamination 1ST Layer the 165, second electron supplying layer 157 and the second electron injecting layer 158 form the second lamination 2ST.At red light-emitting Between the second hole transporting layer 156 and the second blu-ray layer 165 at part 105R and green luminescence part 105G also It is provided with the second luminescent layer 160.
It addition, arrange charge generation layer (CGL) 150 between the first lamination 1ST and the second lamination 2ST.CGL 150 is PN junction charge generation layer, wherein shape between N-type charge generation layer 141 and p-type charge generation layer 142 Cheng Jie.CGL150 produces electric charge and is injected into each luminescent layer or is infused in hole and electronics individually In the luminescent layer formed in first lamination 1ST and the second lamination 2ST.It is to say, N-type CGL is to the first electrode The first luminescent layer 140 and the first blu-ray layer 145 near 130 provide electronics, and p-type CGL is to the second electrode The second luminescent layer 160 and the second blu-ray layer 165 near 170 provide hole so that include the organic of multiple luminescent layer The luminous efficiency of light-emitting diode assembly improves and driving voltage can reduce.
P-type CGL can be by metal or be doped with the organic material of P-type dopant and make.Here, this metal can To include forming from by Al, Cu, Fe, Pb, Zn, Au, Pt, W, In, Mo, Ni and Ti and its alloy The one of group selection.It addition, be doped with in the organic material of P-type dopant the P-type dopant and host's material used Material can use commonly used material.Such as, P-type dopant can be choosing freely 2,3,5,6-tetrafluoros -7,7', 8,8'-tetra-cyanogen dimethyl-parabenzoquinone (F4-TCNQ: 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane), the derivant of four cyanogen dimethyl-parabenzoquinone, iodine, FeCl3、FeF3And SbCl5A kind of material selected in the group of composition.Additionally, host can be choosing free N, N'-bis-(naphthalene Base-1,1)-N, N-diphenylbenzidine (NPB:N, N'-D (naphthalene-1-1)-N, N-diphenyl-benzidine), N, N'-bis-(3-tolyl)-N, N'-pair-(phenyl)-benzidine (TPD:N, N'- Diphenyl-N, N'-bis (3-methyphenyl)-1,1-biphenyl-4,4'-diamine) and N, N', N'-trinitrobenzene A kind of material of the group selection that (TNB:N, N', N'-tetranaphthyl-benzidine (TNB)) forms.
P-type CGL can be by metal or be doped with the organic material of N type dopant and make.Here, this metal can With include from by Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, La, Ce, Sm, Eu, Tb, Dy, The one of the group selection of Yb composition.It addition, be doped with in the organic material of N type dopant the N type dopant used Commonly used material can be used with host material.Such as, this N type dopant can be alkali metal, alkali metal Compound, alkaline-earth metal or alkaline earth metal compound.Specifically, this N type dopant can be from by Cs, K, The one of the group selection of Rb, Mg, Na, Ca, Sr, Eu, Yb composition.Host material can be from by three (8-hydroxyls Quinoline) aluminum, triazine, hydroxyquinoline derivatives, indole derivatives and the one of group selection of parylene derivative composition.
It addition, the second electrode 170 is arranged on the second lamination 2ST.Second electrode 170 can include negative electrode, and And can be made by having the aluminum (Al) of low work function, manganese (Mg), silver (Ag) or its alloy.
As it has been described above, in oled device 100 according to the first embodiment of the invention, first is blue Photosphere 145 and the second blu-ray layer 165 are jointly arranged on red light-emitting part 105R, green luminescence part 105G At blue light emitting part 105B.For launching the first luminescent layer 140 and the second luminescent layer 160 of HONGGUANG and green glow It is respectively formed at red light-emitting part 105R, green luminescence part 105G.
Therefore, the HONGGUANG launched from the first luminescent layer 140 and the second luminescent layer 160 and green glow are by red light-emitting part The red color filter 120R of 105R launches as HONGGUANG, and by the green color filter of green luminescence part 105G 120G launches as green glow.In blue light emitting part 105B, from the first blu-ray layer 145 and the second blu-ray layer 165 The blue light launched is launched by substrate 110 as it is.Therefore, oled device 100 launch HONGGUANG, Green glow and blue light are to realize full color.
It addition, above-mentioned embodiment has illustrated oled device according to the first embodiment of the invention 100 do not include blue light color filter being positioned at blue light emitting part 105B, but the invention is not restricted to this.According to this The oled device 100 inventing the first embodiment can also include the indigo plant for green color purity Light color filter.
Below, the manufacture method of oled device according to the first embodiment of the invention will be described. Fig. 2 A to Fig. 2 E is the side of the oled device illustrating manufacture according to the first embodiment of the invention The sectional view of method, and Fig. 3 A and Fig. 3 B is to illustrate the first mask and the plane graph of the second mask respectively.Composition unit The material of part is as it has been described above, thus eliminate it and describe in detail.
With reference to Fig. 2 A, substrate 110 forms color filter.Red color filter is formed at red light-emitting part 105R 120R, forms green color filter 120G at green luminescence part 105G.Although in the present embodiment at blue light Blue color filter is not formed at luminous component 105B, it may form part of blue color filter.
Then, for each on the substrate 110 define red color filter 120R and green color filter 120G Luminous component forms the first electrode 130.The first mask 180 is used to be sequentially deposited the first hole injection layer 131 and One hole transporting layer 132.With reference to Fig. 3 A, in the case, the first mask 180 includes opening 180a and stop part Divide 180b.Opening 180a opens and includes red light-emitting part 105R, green luminescence part 105G and blue light emitting portion Divide the active region A/A of 105B, and show image.Therefore, send out at whole red light-emitting part 105R, green glow The first hole injection layer 131 and the first hole transporting layer is formed at light part 105G and blue light emitting part 105B 132。
Afterwards, with reference to Fig. 2 B, use the second mask 181 at red light-emitting part 105R and green glow on substrate 110 The first luminescent layer 140 is formed at luminous component 105G.With reference to Fig. 2 B, in the case, the second mask 181 includes Opening 181a and stop portions 181b.Opening 181a merely turn in active region A/A corresponding to red light-emitting Part 105R and the region of green luminescence part 105G, and the stop of stop portions 181b is corresponding to blue light emitting portion Divide the region of 105B.Therefore, only formation first at red light-emitting part 105R and green luminescence part 105G Luminescent layer 140.First luminescent layer 140 is formed by the material launching HONGGUANG or green glow.
Then, with reference to Fig. 2 C, the first mask 180 is used to be sequentially deposited in the whole part of active region A/A First blu-ray layer the 145, first electron supplying layer the 135, first electron injecting layer 136, CGL150, the second hole note Enter layer 155 and the second hole transporting layer 156.First blu-ray layer 145 is formed by the material launching blue light.
Subsequently, with reference to Fig. 2 D, second mask 181 red light-emitting part 105R on substrate 110 and green glow are used The second luminescent layer 160 is formed at luminous component 105G.Owing to the opening 181a of the second mask 181 opens active region In A/A corresponding to red light-emitting part 105R and the region of green luminescence part 105G, and stop portions 181b Stop the region corresponding to blue light emitting part 105B, the most only at red light-emitting part 105R and green luminescence The second luminescent layer 160 is formed at part 105G.By in launching HONGGUANG and launching the material of green glow except for the Remaining material outside the luminescent material of one luminescent layer 140 forms the second luminescent layer 160.Such as, if first is luminous Layer 140 is made up of the material launching HONGGUANG, then the second luminescent layer 160 is formed by the material launching green glow.
Finally, with reference to Fig. 2 E, by using the first mask 180 to be sequentially deposited the second blu-ray layer on substrate 110 165, second electron supplying layer the 157, second electron injecting layer 158 and the second electrode 170 manufacture according to the present invention The oled device 100 of the first embodiment.
As it has been described above, in oled device according to the first embodiment of the invention, same owing to using Time open the mask of red light-emitting part and green luminescence part and be laminated the first luminescent layer and the second luminescent layer, and make Form blue light-emitting for common layer, from according to prior art for preparing the three of HONGGUANG, green glow and blue light-emitting Individual shadow mask decreases a shadow mask so that can reduce manufacturing cost and can simplify process.
Additionally, due in the manufacture method of oled device use at HONGGUANG, green glow and blue light emitting The pitch of the opening in the shadow mask formed at Ceng is designed to be suitable for the pitch of a luminous component, in mask The pitch of opening is narrow.Thus, frequently breaking down during depositing and the accuracy that aligns reduces, this will advise greatly Mould produces degenerates.On the contrary, in the manufacture method of oled device, open HONGGUANG owing to using simultaneously The mask of luminous component and green luminescence part forms luminescent layer, in mask in red light-emitting part and green luminescence part The pitch of opening widen so that the fault during depositing reduces and improves large-scale production.
It addition, the oled device of the present invention can launch HONGGUANG, green glow, blue light and white light to realize entirely Colored.Fig. 4 is the sectional view illustrating oled device second embodiment of the invention.Under Literary composition, will schematically describe the structure identical with the first embodiment.
With reference to Fig. 4, oled device 200 second embodiment of the invention can be launch red, The oled device of the light of green, blue and wavelengths of white light.In second embodiment of the present invention, four sons Pixel one unit picture element of composition.Each sub-pixel include launch HONGGUANG red light-emitting part 205R, launch green Green luminescence part 205G of light, blue light emitting part 205B launching blue light and the white-light emitting portion of transmitting white light Divide 205W, and realize full color.
Oled device 200 second embodiment of the invention includes being arranged on substrate 110 Lamination ST between the first electrode 230 and the second electrode 270.Lamination ST includes having the first blu-ray layer 245 The first lamination 1ST and be arranged on the first lamination 1ST and have the second lamination of second blu-ray layer 265 2ST。
Specifically, it is disposed with red color filter 220R and green color filter 220G over the substrate 210, sends out in HONGGUANG It is disposed with red color filter 220R in light part 205R, and green color filter 220G is disposed in green luminescence portion Divide 205G.
First lamination 1ST forms a light-emitting device unit, and includes the first blu-ray layer 245.Specifically, HONGGUANG Luminous component 205R, green luminescence part 205G and the first white-light emitting part 205W1 include the first luminescent layer 240. First blu-ray layer 245 is collectively forming in red light-emitting part 205R, green luminescence part 205G, blue light emitting part At 205B and the first white-light emitting part 205W1.First luminescent layer 240 is not formed in blue light emitting part 205B At the second white-light emitting part 205W2.In white-light emitting part 205W, form the first luminescent layer 240 Region is defined as the first white-light emitting part 205W1, and the region not forming the first luminescent layer 240 is defined It it is the second white-light emitting part 205W2.
First luminescent layer 240 launches HONGGUANG or green glow.First blu-ray layer 245 be arranged in red light-emitting part 205R, On first luminescent layer 240 of green luminescence part 205G and the first white-light emitting part 205W1, and first is blue Photosphere 245 is collectively forming at the second white-light emitting portion 205W2 and blue light emitting part 205B.
In the first blu-ray layer 245 of blue light emitting part 205B and the second white-light emitting part 205W2, host's Energy jump in adulterant thus blue light is launched.But, in red light-emitting part 205R, green luminescence part In first blu-ray layer 245 of 205G and the first white-light emitting part 205W1, the energy of host does not transit to adulterant In but transit to have in the adulterant of the first luminescent layer 240 of little energy level difference so that the first blu-ray layer 245 is not sent out Light but transmission energy.
It addition, the first lamination 1ST also includes be formed between the first electrode 230 and the first luminescent layer 240 first Hole injection layer (HIL) 231 and the first hole transporting layer (HTL) 232, and also include being positioned at the first blu-ray layer The first electron supplying layer (ETL) 235 on 245 and the first electron injecting layer (EIL) 236.First electrode 230 On first hole injection layer the 231, first hole transporting layer the 232, first blu-ray layer the 245, first electron supplying layer 235 and first electron injecting layer 236 form the first lamination 1ST.In red light-emitting part 205R, green luminescence part Between the first hole transporting layer 232 and the first blu-ray layer 245 at 205G and the first white-light emitting part 205W1 also It is provided with the first luminescent layer 240.
Second lamination 2ST is arranged in above the first lamination 1ST, and includes the second blu-ray layer 265.Specifically, red Light luminous component 205R, green luminescence part 205G and the first white-light emitting part 205W1 include the second luminescent layer 260, but the second luminescent layer 260 is not formed at the second white-light emitting part 205W2 and blue light-emitting 205B. Second blu-ray layer 265 is collectively forming in red light-emitting part 205R, green luminescence part 205G, blue light emitting part At 205B and white-light emitting part 205W.
If the first luminescent layer 240 is configured to launch in HONGGUANG and green glow, then the second luminescent layer 260 is launched Remaining light.Such as, if the first luminescent layer 240 is the red light luminescent layer for launching HONGGUANG, then the second luminescent layer 260 become the green light emitting layer for launching green glow.Second blu-ray layer 265 has identical with the first luminescent layer 240 Structure.
It addition, the second lamination 2ST also includes the second hole between the first lamination 1st and the second luminescent layer 260 Implanted layer 255 and the second hole transporting layer 256, and also include that the second electronics being positioned in the second blu-ray layer 265 is defeated Send layer 257 and the second electron injecting layer 258.Therefore, the second hole injection layer 255 on the first lamination 1st, Two hole transporting layer the 256, second blu-ray layer the 265, second electron supplying layer 257 and the second electron injecting layers 258 groups Become the second lamination 2ST.Red light-emitting part 205R between the second hole transporting layer 256 and the second blu-ray layer 265, It is additionally provided with the second luminescent layer 260 at green luminescence part 205G and the first white-light emitting part 205W1.Additionally, Between the first lamination 1ST and the second lamination 2ST, arrange charge generation layer 250, and the second electrode 270 is arranged On the second lamination 2ST.
As it has been described above, in oled device 200 second embodiment of the invention, first is blue Photosphere 245 and the second blu-ray layer 265 be jointly arranged on red light-emitting part 205R, green luminescence part 205G, At blue light emitting part 205B and white-light emitting part 205.For launching the first luminescent layer of HONGGUANG and green glow simultaneously 240 and second luminescent layer 260 to be formed only into red light-emitting part 205R, green luminescence part 205G and first white At light luminous component 205W1.
Therefore, the HONGGUANG launched from the first luminescent layer 240 and the second luminescent layer 260 and green glow are by red light-emitting part The red color filter 220R of 205R is as red emission, and passes through the green color filter of green luminescence part 205G 220G is as green emission.In the second white-light emitting part 205W2 and blue light emitting part 205B, from first The blue light that blu-ray layer 245 and the second blu-ray layer 265 are launched is launched by substrate 210 as it is.Luminous from first Layer 240 and second luminescent layer 260 HONGGUANG and green emission to substrate 210, and with the second white-light emitting part The blue light of 205W2 thus finally launch white light from white-light emitting part 205.Therefore, the second of the present invention is real The oled device 200 executing mode launches HONGGUANG, green glow, blue light and white light to realize full color.
It addition, when the colour temperature of the white light launched from white-light emitting part and the target colour temperature of panel are identical, set at panel Meter and power consumption aspect are favourable.Can be by adjusting the transmitting HONGGUANG and the first of green glow of the first luminescent layer and the second luminescent layer The area of white-light emitting part and the area of the second white-light emitting part launching blue light of the first and second blu-ray layer, come Control the colour temperature of the white light launched from white-light emitting part.Such as, in order to launch the white light of high color temperature, can increase and send out Penetrate the area of the second white-light emitting part of blue light.On the contrary, for the white light launching low colour temperature, launched by increase The area of the first white-light emitting part of HONGGUANG and green glow can realize target colour temperature.
It addition, above-mentioned embodiment has illustrated oled device second embodiment of the invention 200 schemes not including blue light color filter being positioned at blue light emitting part 205B, but the invention is not restricted to this. Oled device 200 according to second embodiment of the invention can also include for blue color pure The blue light color filter of degree.
Below, the manufacture method of oled device second embodiment of the invention will be described. Fig. 5 A to Fig. 5 E is the side of the oled device illustrating manufacture second embodiment of the invention The sectional view of method, and Fig. 6 A and Fig. 6 B is to illustrate the first mask and the plane graph of the second mask respectively.Composition unit The material of part is as it has been described above, thus eliminate it and describe in detail.
With reference to Fig. 5 A, form color filter over the substrate 210.Red color filter is formed at red light-emitting part 205R Device 220R, forms green color filter 220G at green luminescence part 205G.Although in the present embodiment in indigo plant It is formed without blue color filter at light luminous component 205B, but blueness can be formed at blue light emitting part 205B Color filter.
Then, for each on the substrate 210 define red color filter 220R and green color filter 220G Luminous component forms the first electrode 230.The first mask 180 is used to be sequentially deposited the first hole injection layer 231 and One hole transporting layer 232.With reference to Fig. 6 A, in the case, opening 208a opened include red light-emitting part 205R, The active region A/A of green luminescence part 205G, blue light emitting part 205B and white-light emitting part 205, and Display image.Therefore, in whole red light-emitting part 205R, green luminescence part 205G and blue light emitting part The first hole injection layer 231 and a HTL232 is formed at 205B.
Afterwards, with reference to Fig. 5 B, use the second mask 281 over the substrate 210 at red light-emitting part 205R, green glow The first luminescent layer 240 is formed at luminous component 205G and the first white-light emitting part 205W1.Reference Fig. 6 B, In the case of this, the second mask 281 is shadow mask, and includes opening 281a and stop portions 281b.Opening 281a Merely turn in active region A/A corresponding to red light-emitting part 205R, green luminescence part 205G and first The region of white-light emitting part 205W1, and stop portions 181b stop with the second white-light emitting part 205W2 The region corresponding with blue light emitting part 205B.Therefore, the first luminescent layer 240 is formed only into red light-emitting portion Divide at 205R, green luminescence part 205G and the first white-light emitting part 205W.First luminescent layer 240 is by launching The material of HONGGUANG or green glow is formed.
Then, with reference to Fig. 5 C, the first mask 280 is used to be sequentially deposited in the whole part of active region A/A First blu-ray layer the 245, first electron supplying layer the 235, first electron injecting layer 236, CGL250, the second hole note Enter layer 255 and the second hole transporting layer 256.First blu-ray layer 245 is formed by the material launching blue light.
Afterwards, with reference to Fig. 5 D, use the second mask 281 over the substrate 210 at red light-emitting part 205R, green glow The second luminescent layer 260 is formed at luminous component 205G and the first white-light emitting part 205W1.Due to the second mask The opening 281a of 281 open in active region A/A with red light-emitting part 205R, green luminescence part 205G The region corresponding with the first white-light emitting part 205W1, and stop portions 181b stop with the second white-light emitting The region that part 205W2 is corresponding with blue light emitting part 205B, thus only red light-emitting part 205R, The second luminescent layer 260 is formed at green luminescence part 205G and the first white-light emitting part 205W1.Red by launching Remaining material in addition to the luminescent material for the first luminescent layer 240 in the material of light and transmitting green glow is formed Second luminescent layer 260.Such as, if the first luminescent layer 240 is made up of the material launching HONGGUANG, then second is luminous Layer 260 is formed by the material launching green glow.
Finally, with reference to Fig. 5 E, by using the first mask 280 to be sequentially deposited the second blu-ray layer over the substrate 210 265, second electron supplying layer the 257, second electron injecting layer 258 and the second electrode 270 manufacture according to the present invention The oled device 200 of the second embodiment.
If the first mask 280 uses once in deposition processes, then in process subsequently, the first mask 280 Can not be used continuously, and use the first washed mask with formed objects and opening to carry out with post processing.Press According to same way, use the second washed mask with formed objects and opening to carry out with post processing every time.Additionally, the One mask 280 is the common mask opened at active region, and the second mask is only to open at specific luminous component Shadow mask.
As it has been described above, in oled device second embodiment of the invention, same owing to using Time open the mask of red light-emitting part and green luminescence part and be laminated the first luminescent layer and the second luminescent layer, and conduct Common layer forms blue light-emitting, therefore, it is possible to use two shadow masks to realize HONGGUANG, green glow, blue light and white light Oled device.Therefore, it can reduce the manufacturing cost of oled device and can simplify It processes.
It addition, the present invention provides a kind of is capable of the organic of HONGGUANG, green glow, blue light or white light by various structures Light-emitting diode assembly.
Fig. 7 is the sectional view of the oled device illustrating the manufacture according to third embodiment of the present invention, Fig. 8 is the sectional view of the oled device of the manufacture illustrating the 4th embodiment according to the present invention, and Fig. 9 is the sectional view of the oled device of the manufacture illustrating the 5th embodiment according to the present invention.
With reference to Fig. 7, according to the oled device 400 of third embodiment of the present invention can be launch red, The oled device of the light of green and blue wavelength.In third embodiment of the present invention, three sub-pixel groups Become a unit picture element.Each sub-pixel includes launching red light-emitting part 405R of HONGGUANG, launching the green of green glow Light luminous component 405G and blue light emitting part 405B of transmitting blue light, and realize full color.
Oled device 400 according to third embodiment of the present invention include being positioned on substrate 410 The first luminescent layer 440 and the first blu-ray layer 445 between first electrode 430 and the second electrode 470.Specifically, exist Being disposed with red color filter 420R and green color filter 420G on substrate 410, red color filter 420R is disposed in At red light-emitting part 405R, and green color filter 420G is disposed at green luminescence part 405G.Blue light Luminous component 405B launches blue light and is not provided with blue color filter.
Red light-emitting part 405R and green luminescence part 405G include the first luminescent layer 440.First blu-ray layer 445 It is collectively forming at red light-emitting part 405R, green luminescence part 405G and blue light emitting part 405B.First Luminescent layer 440 is formed at blue light emitting part 405B.
First luminescent layer 440 launches blue light and gold-tinted.First blu-ray layer 445 be arranged in red light-emitting part 405R and On first luminescent layer 440 of green luminescence part 405G, and the first blu-ray layer 445 is collectively arranged in blue light emitting At part 405B.In the first blu-ray layer 445 of blue light emitting part 405B, the energy jump of host is to doping In agent thus blue light is launched.But, in red light-emitting part 405R and the first indigo plant of green luminescence part 405G In photosphere 445, the energy of host does not transit in adulterant but transits to first luminescent layer with little energy level difference In the adulterant of 440 so that the first blu-ray layer 445 is the most luminous but transmits energy.
It addition, arrange the first hole injection layer 431 and first between the first electrode 430 and the first luminescent layer 440 Hole transporting layer HTL432, and in the first blu-ray layer 445, it is disposed with first electron supplying layer the 435, first electricity Sub-implanted layer 436 and the second electrode 470.Therefore, first hole injection layer the 431, first hole transporting layer 432, First blu-ray layer the 445, first electron supplying layer 435 and the first electron injecting layer 436 are disposed in blue light emitting part At 405B.The first hole transporting layer 432 at red light-emitting part 405R and green luminescence part 405G and The first luminescent layer 440 it is also provided with between one blu-ray layer 445.
As it has been described above, in the oled device 400 according to third embodiment of the present invention, first is blue Photosphere 445 is jointly arranged on red light-emitting part 405R, green luminescence part 405G and blue light emitting part 405B Place.It is formed only into red light-emitting part 405R and green for launching the first luminescent layer 440 of gold-tinted and green glow simultaneously At light luminous component 405G.
Therefore, the gold-tinted launched from the first luminescent layer 440 and the green glow red color filter by red light-emitting part 405R Device 420R is as red emission, and is sent out as green glow by the green color filter 420G of green luminescence part 405G Penetrate.In blue light emitting part 405B, the blue light launched from the first blu-ray layer 445 passes through substrate 410 as it is Launch.Therefore, the oled device 400 of third embodiment of the present invention launches HONGGUANG, green glow and indigo plant Light is to realize full color.
It addition, with reference to Fig. 8, according to the oled device 500 of the 4th embodiment of the present invention can be Launch the oled device of the light of red, green and blue wavelength.In the 4th embodiment of the present invention, three Sub-pixel one unit picture element of composition.Each sub-pixel includes launching red light-emitting part 505R of HONGGUANG, transmitting Green luminescence part 505G of green glow and blue light emitting part 505B of transmitting blue light, and realize full color.
The oled device 500 of the 4th embodiment according to the present invention includes being arranged on substrate 510 Lamination ST between the first electrode 530 and the second electrode 570.Lamination ST includes: include the first blu-ray layer 540 The first lamination 1ST；It is arranged on the first lamination 1ST and includes the 2ST of the second lamination of the second blu-ray layer 565.
Specifically, substrate 510 is disposed with red color filter 520R and green color filter 520G, sends out in HONGGUANG It is disposed with red color filter 520R in light part 505R, and in green luminescence part 505G, arranges green color Device 520G.First lamination 1ST forms a light-emitting device unit, and includes the first blu-ray layer 540.Specifically, First blu-ray layer 540 is collectively forming in red light-emitting part 505R, green luminescence part 505G and blue light emitting portion Divide at 505B.
First lamination 1ST also includes the first hole note being formed between the first electrode 530 and the first blu-ray layer 540 Enter layer 531 and the first hole transporting layer 532, and also include the first electron supplying layer 535 and the first electron injecting layer 536.Therefore, first hole injection layer the 531, first hole transporting layer the 532, first blue light on the first electrode 530 Layer the 545, first electron supplying layer 535 and the first electron injecting layer 536 form the first lamination 1ST.
Second lamination 2ST is arranged in above the first lamination 1ST, and includes the second blu-ray layer 565.Specifically, red Light luminous component 505R and green luminescence part 505G include the first luminescent layer 560, and in red light-emitting part The second blu-ray layer 565 it has been collectively form at 505R, green luminescence part 505G and blue light emitting part 505b, But at blue light emitting part 505b, do not form the first luminescent layer 560.
First luminescent layer 560 launches gold-tinted and green glow simultaneously.Second blu-ray layer 565 is arranged in red light-emitting part 505R With on the first luminescent layer 560 of green luminescence part 505G, and the second blu-ray layer 565 is collectively arranged in blue light and sends out At light part 505B.In the second blu-ray layer 565 of blue light emitting part 505B, the energy jump of host is to mixing In miscellaneous dose thus blue light is launched.But, in red light-emitting part 505R and the second of green luminescence part 505G In blu-ray layer 565, the energy of host does not transit in adulterant but transits to first luminescent layer with little energy level difference In the adulterant of 560 so that the second blu-ray layer 565 is the most luminous but transmits energy.
It addition, the second lamination 2ST also includes that second between the first lamination 1ST and the first luminescent layer 560 is empty Cave implanted layer 555 and the second hole transporting layer 556, and also include the second electronics being positioned in the second blu-ray layer 565 Transfer layer 557 and the second electron injecting layer 558.Second hole injection layer the 555, second hole transporting layer 556, Two electron supplying layers 557 and the second electron injecting layer 558 are respectively provided with and first hole injection layer the 531, first hole The structure that transfer layer the 532, first electron supplying layer 535 is identical with the first electron injecting layer 536.
Therefore, second hole injection layer the 555, second hole transporting layer the 556, second blue light on the first lamination 1st Layer the 565, second electron supplying layer 557 and the second electron injecting layer 558 form the second lamination 2ST.At red light-emitting Between the first hole transporting layer 556 and the second blu-ray layer 565 at part 505R and green luminescence part 505G also It is provided with the first luminescent layer 560.
It addition, arrange charge generation layer (CGL) 550 between the first lamination 1ST and the second lamination 2ST, make Obtain electric charge and be injected into the luminescent layer being formed at the first lamination 1ST and the second lamination 2ST.At the second lamination 2ST On arrange the second electrode 570.
As it has been described above, in the oled device 500 of the 4th embodiment according to the present invention, first is blue Photosphere 540 and the second blu-ray layer 565 are commonly formed at red light-emitting part 505R, green luminescence part 505G At blue light emitting part 505B.Only send out in HONGGUANG for launching the first luminescent layer 560 of gold-tinted and green glow simultaneously Formed at light part 505R and green luminescence part 505G.Therefore, from the gold-tinted of the first luminescent layer 560 and green Light and the blue light from the first blu-ray layer 540 are to realize white light.White light is red by red light-emitting part 505R Color color filter 520R is as red emission, and passes through the green color filter 520G conduct of green luminescence part 505G Green emission.In blue light emitting part 505b, the indigo plant launched from the first blu-ray layer 540 and the second blu-ray layer 565 Light is launched by substrate 510 as it is.Therefore, oled device 500 launches HONGGUANG, green glow and indigo plant Light is to realize full color.
With reference to Fig. 9, according to the oled device 600 of the 5th embodiment of the present invention can be launch red, The oled device of the light of green, blue and wavelengths of white light.In the 5th embodiment of the present invention, four sons Pixel one unit picture element of composition.Each sub-pixel include launch HONGGUANG red light-emitting part 605R, launch green Green luminescence part 605G of light, blue light emitting part 605B launching blue light and the white-light emitting portion of transmitting white light Divide 605W, and realize full color.
The oled device 600 of the 5th embodiment according to the present invention includes being arranged on substrate 110 Lamination ST between the first electrode 230 and the second electrode 270.Lamination ST includes having the first blu-ray layer 645 The first lamination 1ST and be arranged on the first lamination 1ST and have the second lamination of second blu-ray layer 665 2ST。
Specifically, substrate 610 is disposed with red color filter 620R and green color filter 620G, red color filter Device 620R is disposed at red light-emitting part 605R, and green color filter 620G is disposed in green luminescence portion Divide at 605G.First lamination 1ST forms a light-emitting device unit, and includes the first blu-ray layer 645.First Blu-ray layer 645 is collectively forming in red light-emitting part 605R, green luminescence part 605G, blue light emitting part 605B At white-light emitting part 605W.First blu-ray layer 645 launches blue light to substrate 610.
First lamination 1ST also includes the first hole note being formed between the first electrode 630 and the first blu-ray layer 645 Enter layer 631 and the first hole transporting layer 632, and also include the first electron transport being positioned in the first blu-ray layer 645 Layer 635 and the first electron injecting layer 636.Therefore, the first hole injection layer 631, first on the first electrode 630 Hole transporting layer the 632, first blu-ray layer the 645, first electron supplying layer 635 and the first electron injecting layer 636 form First lamination 1ST.
At the first lamination 1ST the second lamination 2ST arranged above, and the second lamination 2ST includes the second blu-ray layer 665.Specifically, red light-emitting part 605R, green luminescence part 605G and the first white-light emitting part 605W1 Including the first luminescent layer 660, but the first luminescent layer 660 is not formed in the second white-light emitting part 605W2 and indigo plant At light luminescent layer 605B.In white-light emitting part 605W, the region forming the first luminescent layer 660 is defined as First white-light emitting part 605W1, and the region being formed without the first luminescent layer 660 is defined as the second white light and sends out Light part 605W2.Second blu-ray layer 665 be collectively forming red light-emitting part 605R, green luminescence part 605G, At blue light emitting part 605B and white-light emitting part 605W.
First luminescent layer 660 launches gold-tinted and green glow simultaneously.In blue light emitting part 605B and the second white-light emitting portion In second blu-ray layer 665 of point 605W2, in the energy jump of host to adulterant thus blue light is launched.But, At red light-emitting part 605R, green luminescence part 605G and the second blue light of the first white-light emitting part 605W1 In layer 665, the energy of host does not transit in adulterant but transits to have the first luminescent layer 660 of little energy level difference Adulterant in so that the second blu-ray layer 665 the most luminous but transmission energy.
It addition, the second lamination 2ST also includes that second between the first lamination 1ST and the first luminescent layer 660 is empty Cave implanted layer 655 and the second hole transporting layer 656, and also include the second electronics being positioned in the second blu-ray layer 665 Transfer layer 657 and the second electron injecting layer 658.Therefore, the second hole injection layer 655 on the first lamination 1ST, Second hole transporting layer the 656, second blu-ray layer the 665, second electron supplying layer 657 and the second electron injecting layer 658 Form the second lamination 2ST.Red light-emitting part between the second hole transporting layer 656 and the second blu-ray layer 665 It is additionally provided with the first luminescent layer 660 at 605R, green luminescence part 605G and the first white-light emitting part 605W1. Additionally, arrange CGL650 between the first lamination 1ST and the second lamination 2ST, and the second electrode 670 quilt It is arranged on the second lamination 2ST.
As it has been described above, in the oled device 600 of the 5th embodiment according to the present invention, first is blue Photosphere 645 and the second blu-ray layer 665 be jointly arranged on red light-emitting part 605R, green luminescence part 605G, At blue light emitting part 605B and white-light emitting part 605W.Luminous for launching the first of gold-tinted and green glow simultaneously Layer 660 is formed only into red light-emitting part 605R, green luminescence part 605G and the first white-light emitting part At 605W1.
Therefore, from first luminescent layer 660 launch gold-tinted and green glow with from first blu-ray layer 645 launch blue light Make to realize white light.Therefore, white light is sent out as HONGGUANG by the red color filter 620R of red light-emitting part 605R Penetrate, and by the green color filter 620G of green luminescence part 605G as green emission.In blue light emitting portion Dividing in 605B, the blue light launched from the first blu-ray layer 645 and the second blu-ray layer 665 passes through substrate 610 as it is Launch.From the gold-tinted of the first luminescent layer 660 and green emission to substrate 610, and with the second white-light emitting part The blue light of 605W2 thus finally launch white light from white-light emitting part 605W.Therefore, the 5th of the present invention The oled device 600 of embodiment launches HONGGUANG, green glow, blue light and white light to realize full color.
Below, by the example of open oled device according to the embodiment of the present invention.But, real The mode of executing is taken merely as example and is described, and the invention is not restricted to these embodiments.
By forming the first lamination including blue light-emitting on the first electrode, the first lamination forms CGL, Lamination includes that the second lamination of yellow-green luminescent layer and deposition the second electrode manufacture and have having of the structure shown in Figure 10 Machine light-emitting diode assembly.Each lamination includes hole transporting layer, hole injection layer, electron supplying layer and electronics note Enter layer, show these layers schematically in the drawings.In oled device, launch from the second lamination Light mixes to launch white light with the light launched from the first lamination, and a part for white light is launched as it is, and is instructed to For white light, and remaining white light is embodied as HONGGUANG, green glow and blue light by R, G and B color filter.
Devise the oled device with structure as shown in Figure 7 according to the 3rd embodiment manufacture.
Devise the oled device with structure as shown in Figure 8 according to the 4th embodiment manufacture.
Devise the oled device with structure as shown in Figure 9 according to the 5th embodiment manufacture.
Devise the oled device with structure as shown in Figure 1 according to the first embodiment manufacture.
After manufacturing the oled device of comparative example, measure sending out of HONGGUANG, green glow, blue light and white light Light efficiency and color coordinates.The digital simulation based on the comparative example luminous efficiency according to the first to the 4th embodiment And color coordinates, and in table 1 below, list luminous efficiency and the color coordinates of simulation.
As simulated conditions, efficiency and color coordinates in the data of comparative example apply the current of blue light monochromating device Rank data.Calculated by HONGGUANG based on above-mentioned equally Application comparison example and the efficiency of green glow and color coordinates HONGGUANG in the data of comparative example and green glow.In the case of blue light, the first embodiment application apparatus work as prime Not, and due to the cavity effect in the data of blue light monochromating device, second and the 3rd embodiment expectation efficiency reduce (～6%), then because two laminations are so applying double-efficiency.Assuming that in the device of embodiment HONGGUANG and Quantum efficiency EQE of green glow is about 23%, by spectrum be simulated calculate application color filter after red Light and the efficiency of green glow.
Figure 11 is the curve chart of the spectrum of the oled device illustrating the comparative example according to the present invention, figure 12 is the curve chart of the blue spectrum of the oled device illustrating the comparative example according to the present invention, and Figure 13 is HONGGUANG and the green spectrum of the oled device illustrating the 4th embodiment according to the present invention Curve chart.
With reference to Fig. 1, it is made sure that the organic light-emitting diodes manufactured according to first to the 4th embodiment of the present invention Pipe device improves luminous efficiency and the color coordinates of same level such as presents.Specifically, it is made sure that the 4th is real The luminous efficiency executing mode can significantly improve.The comparative example that yellow/green luminescent layer and blue light-emitting are laminated Structure in peak strength high and be clearly separated.It is made sure that the peak value in the wavelength of green glow and HONGGUANG is strong That spends than the present invention shown in Figure 13 is low many.It is to say, it is made sure that organic according to embodiment More excellent than in comparative example of green glow in light-emitting diode assembly and the color purity of HONGGUANG.
Luminous efficiency, color reproduction range, common electric voltage and power is listed in table 2 below.There are two In the comparative example of laminated construction and the second to the 4th embodiment, apply the common electric voltage of 20V.Due to Have in the first example of a laminated construction and reduce driving voltage, by application 15V measure color reproduction range, Common electric voltage and power.
With reference to table 2, it is made sure that compared with comparative example, manufacture according to first to the 4th example of the present invention The color reproduction range of oled device reduces, but the luminous efficiency of the third and fourth example substantially increases Add.Compared with comparative example, the power consumption as the third and fourth example of power instruction substantially reduces.It is to say, It should be understood that on the basis of comparative example is 100%, lower power consumption about 76% and 88%.
As it has been described above, in the oled device of the present invention, power consumption characteristics and luminous efficiency can improve.
Although describing embodiment with reference to multiple illustrative embodiments, it should be understood that those skilled in the art can set Meter falls into the many in the range of the principle of the disclosure other amendment and embodiments.More specifically, can be in these public affairs Open, building block and/or arrangement mode to this theme combination unit is carried out in accompanying drawing and scope of the following claims Various conversion and amendment.In addition to the conversion of building block and/or arrangement mode and amendment, substituting use is to ability The technical staff in territory is also apparent from.
1. an oled device, described oled device includes:
Substrate, described substrate includes launching the red light-emitting part of HONGGUANG, the green luminescence part launching green glow and transmitting The blue light emitting part of blue light；And
It is arranged in the lamination between the first electrode and the second electrode on the substrate,
Wherein, described lamination includes first lamination with the first blu-ray layer and is arranged on described first lamination and has There is the second lamination of the second blu-ray layer, and
At the subregion corresponding to described red light-emitting part and described green luminescence part of described first lamination Be formed with the first luminescent layer, and at described second lamination corresponding to described red light-emitting part and described green luminescence It is formed with the second luminescent layer at the subregion of part.
Oled device the most according to claim 1, wherein, described first luminescent layer is launched red Light or green glow, described second luminescent layer launch in HONGGUANG and green glow except the light launched from described first luminescent layer with Outer light.
Oled device the most according to claim 1, wherein, described first blu-ray layer and described Second blu-ray layer is manufactured from the same material.
Oled device the most according to claim 1, wherein, described red light-emitting part is passed through Red color filter launches HONGGUANG, and described green luminescence part launches green glow by green color filter.
Oled device the most according to claim 4, wherein, described blue light emitting part is launched The blue light launched from described first blu-ray layer and described second blu-ray layer.
Oled device the most according to claim 5, wherein, described substrate also includes that white light is sent out Light part, described white-light emitting part includes the first white-light emitting part and the second white-light emitting part, and
Described first white-light emitting part has and described red light-emitting part and the structure phase of described green luminescence part With structure, and described second white-light emitting part has the structure identical with the structure of described blue light emitting part.
Oled device the most according to claim 6, wherein, described white-light emitting part will be from The blue light that described first blu-ray layer of described second white-light emitting part and described second blu-ray layer are launched with from described the HONGGUANG and green glow that described first luminescent layer of one white-light emitting part and described second luminescent layer are launched mix to launch White light.
Oled device the most according to claim 4, wherein, described blue light emitting part is passed through Blue color filter launches blue light.
Oled device the most according to claim 1, described oled device also wraps Include: be arranged in the charge generation layer between described first lamination and described second lamination.
Oled device the most according to claim 1, wherein, described first lamination and described The each of which of two laminations includes in hole injection layer, hole transporting layer, electron supplying layer and electron injecting layer at least One.
11. 1 kinds of methods manufacturing oled device, described method includes:
Substrate is formed the first electrode；
Forming the first lamination, the step of this formation the first lamination includes: use the first mask being formed with described first electricity Form the first luminescent layer on the substrate of pole, and use the second mask to form the first blue light on described first luminescent layer Layer；
Forming the second lamination, the step of this formation the second lamination includes: use described first mask being formed with described Form the second luminescent layer on the substrate of one lamination, and use described second mask to form on described second luminescent layer Two blu-ray layer；And
The substrate being formed with described second lamination forms the second electrode.
12. methods according to claim 11, wherein, described first luminescent layer launches HONGGUANG or green glow, The light in addition to from the light that described first luminescent layer is launched in HONGGUANG and green glow launched by described second luminescent layer.
13. methods according to claim 11, wherein, described first blu-ray layer with the second blu-ray layer by identical Material is made.
14. methods according to claim 11, wherein, described substrate includes the red light-emitting portion launching HONGGUANG Divide, launch the green luminescence part of green glow and launch the blue light emitting part of blue light, and
Red color filter is formed on the substrate corresponding to described red light-emitting part, and corresponding on the substrate Green color filter is formed in described green luminescence part.
15. methods according to claim 14, wherein, described substrate also includes white-light emitting part, described White-light emitting part includes the first white-light emitting part and the second white-light emitting part, and
Forming the first lamination, the step of this formation the first lamination includes: uses and opens described red light-emitting part, described 3rd mask of green luminescence part and described first white-light emitting part is on the substrate being formed with described first electrode Form the first luminescent layer, and use open described red light-emitting part, described green luminescence part, described blue light are sent out 4th mask of light part and described white-light emitting part forms the first blu-ray layer；And
Forming the second lamination, the step of this formation the second lamination includes: uses and opens described red light-emitting part, described 3rd mask of green luminescence part and described first white-light emitting part is on the substrate being formed with described first lamination Form the second luminescent layer, and use open described red light-emitting part, described green luminescence part, described blue light are sent out 4th mask of light part and described white-light emitting part forms the second blu-ray layer.
16. methods according to claim 14, described method also includes: on the substrate corresponding to described Blue light emitting part forms blue color filter.
17. 1 kinds of oled devices, described oled device includes:
At least one lamination being arranged on the substrate between the first electrode and the second electrode,
Described lamination includes the first blu-ray layer, and at described lamination corresponding to described red light-emitting part and described green The first luminescent layer is formed at the subregion of light luminous component.
18. oled devices according to claim 17, wherein, at least one lamination bag described Second lamination of the bottom including the first lamination and be arranged in described first lamination,
Described first lamination includes described first blu-ray layer, and is formed described at the subregion of described first lamination First luminescent layer, and described second lamination includes the second blu-ray layer.
19. oled devices according to claim 18, wherein, described first blu-ray layer and Two blu-ray layer are manufactured from the same material.
20. oled devices according to claim 19, wherein, described first luminescent layer is launched Gold-tinted and green glow.
CN201210558670.6A 2012-09-26 2012-12-20 Oled device and manufacture method thereof CN103681734B (en)
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