CN101620868A - Recordable information recording medium - Google Patents
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- CN101620868A CN101620868A CN200910134928A CN200910134928A CN101620868A CN 101620868 A CN101620868 A CN 101620868A CN 200910134928 A CN200910134928 A CN 200910134928A CN 200910134928 A CN200910134928 A CN 200910134928A CN 101620868 A CN101620868 A CN 101620868A
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Abstract
The present invention relates to a recordable information recording medium (10), including an organic dye layer (2) having plow grooves and groove sides, where recording marks are formed by applying shortwave laser beans on the organic dye layer (2). An optical density of the organic dye layer (2) is 0.25 or less, a pitch (T1) of the plow groove is 0.32 [Mu]m to 0.4 [Mu]m, and a width (t1) of each plow groove is 50% to 80% of the pitch of the plow groove.
Description
Technical field
One embodiment of the invention relate to by using short wavelength laser beam (as blue laser beam) can write down the also recordable information recording medium of information reproduction.
Background technology
The CD of information reproduction is used as CD of new generation for the blue laser beam of about 405nm writes down also by using wavelength.
When the recording medium that will adopt the organic dyestuff that has absorption peak at the wavelength place less than recording or reproducing laser beam wavelength (405nm) (as the information record recording materials that use short wavelength laser beam) is used for when using blue laser beam to write down also information reproduction, then the molecular weight of per molecule must reduce.This can reduce the stability and the storage persistence of ultra-violet radiation resisting etc., and reduces thermal stability.As a result, the contrast of record mark and resolution reduce.Described in Jap.P. No.2004-110385, (for example) CD with above-mentioned absorption characteristic can have so-called H to L characteristic (promptly characteristic) from high to low, and this characteristic makes and is lower than the light reflectivity that applies before the laser beam by the light reflectivity that applies the record mark part that laser beam forms.
Yet, if adopted the line speed record of the shortwave recording type optical disc of organic dyestuff to come recorded information, owing to the thermal capacitance of dyestuff self makes dyestuff be easy to storing heat greatly by raising.This can increase the stain of record mark, and adjacent tracks is impacted.As a result, the intersection write diagnostics is reduced.In addition, recording characteristic generation deterioration, thus can not obtain the high reproduction signal to noise ratio (S/N ratio) and the low bit error rate.
It should be noted, be not recorded in information under the condition of adjacent tracks, obtain satisfied record susceptibility sometimes.Yet, if information is recorded on the adjacent tracks, writes and will increase to the intersection of adjacent tracks, this can reduce and reproduces signal to noise ratio (S/N ratio) and increase the bit error rate.Because these characteristics no longer reach realistic scale, so recording characteristic generation deterioration.
Summary of the invention
In view of the foregoing implement the present invention and the recordable information recording medium that the objective of the invention is to obtain to have the good record characteristic.
The invention provides a kind of recordable information recording medium, it is characterized in that this information recording carrier comprises: substrate with circular concentric or spiral groove and groove bank, with groove that is formed at described substrate and groove recording layer on the bank, and described recording layer comprises organic dye layer, on this organic dye layer, be formed with record mark by applying laser beam, wherein the optical density (OD) of organic dye layer is 0.25 or lower, pitch between the groove is 0.32 μ m to 0.4 μ m, and the width of each groove be between the groove pitch 50% to 80%.
Other purpose of the present invention and advantage will be illustrated in the following description, and some may be obvious that from this description, perhaps can learn by implementing the present invention.Objects and advantages of the present invention can be by means of the means that hereinafter particularly point out and in conjunction with realizing and obtaining.
Description of drawings
The accompanying drawing of incorporating into and constituting an instructions part shows embodiment of the present invention, and together is used for illustrating principle of the present invention with the detailed description of general introduction that provides above and embodiment given below.
Fig. 1 is the cut-open view that the example of recordable information recording medium of the present invention is shown; And
Fig. 2 is the cut-open view that another example of recordable information recording medium of the present invention is shown.
Preferred implementation
Recordable information recording medium of the present invention comprises: the substrate with circular concentric or spiral groove and groove bank, with groove that is formed at substrate and groove recording layer on the bank, and described recording layer comprises organic dye layer, on this organic dye layer, be formed with record mark by applying laser beam, wherein the optical density (OD) of organic dye layer is 0.25 or lower, pitch between groove is 0.32 μ m to 0.4 μ m, and the width of each groove be between the groove pitch 50% to 80%.
According to the present invention, obtained to have the recordable information recording medium of good record characteristic.
Above-mentioned recordable information recording medium can be reduced following two aspects.
According to a first aspect of the invention, described substrate is the transparent resin substrate, and described recording layer also comprises the reflectance coating that is formed on the organic dye layer, and recording or reproducing laser beam can be entered by this side of transparent resin substrate.
Below with reference to accompanying drawings the present invention is described in more detail.
Fig. 1 is the cut-open view that the example of recordable information recording medium of the present invention is shown.
As shown in Figure 1, comprise according to the recordable information recording medium of first aspect present invention: substrate 1, this substrate 1 have circular concentric or spiral groove and groove bank, and by making such as resins such as polycarbonate; With groove that is formed at substrate 1 and groove recording layer 4 on the bank.Recording layer 4 comprises: organic dye layer 2, this organic dye layer 2 are formed at the groove of substrate 1 and groove on the bank, and are formed with record mark by applying laser beam on this organic dye layer; With the reflectance coating 3 that is formed on the organic dye layer 2.The optical density (OD) of organic dye layer 2 is 0.25 or lower, and for example 0.1 (comprising 0.1) is to 0.2 (comprising 0.2); Pitch T1 between groove is 0.32 μ m to 0.4 μ m, for example T1=0.4 μ m; And the width t of each groove be between (for example) groove pitch T1 50% to 80%, t=0.26 μ m for example.Also can on the adhesive phase 5 that is positioned on the reflection horizon 3, form dummy substrate (dummy substrate) 6.The recording laser bundle is from transparency carrier 1 this side incident.
According to a second aspect of the invention, recording layer also comprises the reflection horizon between substrate and organic dye layer, is formed with contact bed on organic dye layer, and is formed with overlayer.
Fig. 2 is the cut-open view that another example of recordable information recording medium of the present invention is shown.
As shown in Figure 2, comprise according to the recordable information recording medium 20 of second aspect present invention: substrate 9, it has circular concentric or spiral groove and groove bank; Recording layer 4, it comprise the groove that is formed at substrate 9 and groove on the bank reflection horizon 3 and be formed at organic dye layer 2 on the reflection horizon 3, and on this organic dye layer 2, be formed with record mark by applying laser beam; Be formed at the contact bed 11 on the recording layer 4; With the transparent covering layer 8 that is formed on the adhesive phase 7.The optical density (OD) of organic dye layer 2 is 0.25 or lower, for example is that 0.1 (comprising 0.1) is to 0.2 (comprising 0.2); Pitch T1 between groove is 0.32 μ m to 0.4 μ m, for example 0.32 μ m; And the width t of each groove be between the groove pitch T1 50% to 80%.
In the present invention, can be by optical density (OD), thickness and the groove width that is stacked on on-chip organic dye layer be optimized, thus obtain satisfied recording characteristic.
The thickness of organic dye layer can be 50nm or lower, for example 20nm to 45nm in the groove.The groove thickness of organic dye layer on the bank can be 10nm or lower, for example 5nm to 10nm.
Can use such recording layer, wherein be higher than the light reflectivity that applies before the laser beam by the light reflectivity that applies the record mark part that laser beam forms.
Recording film can include organic dye, and this organic dyestuff completely or partially comprises dyestuff part and the anionicsite that is made of metal-organic complex, and described organic dyestuff has the maximum absorption wavelength zone at the wavelength place greater than the laser beam wavelength.
In a second aspect of the present invention, also can between recording layer and overlayer, form contact bed, mix with between the material that prevents recording layer and the tectal material.As contact bed, can use oxide, nitride or the sulfide of (for example) Si, Ge or Zn, or the potpourri of these compounds.
Used organic dye layer can include organic dye and by first among the present invention
The quencher that metal complex constitutes, and this organic dye layer can have the maximum absorption wavelength zone at the wavelength place greater than the laser beam wavelength, and wherein said organic dyestuff comprises cationic moiety that is made of single methyl cyanines (モ ノ メ チ Application シ ア ニ Application) dyestuff and the anionicsite that is made of azo metal complex.
In addition, another kind of organic dye layer used among the present invention can contain such organic dyestuff, this organic dyestuff comprises metal complex monomer and metal complex polymkeric substance, and described organic dye layer can have the maximum absorption wavelength zone at the wavelength place greater than the laser beam wavelength.
The example of used organic dye material is cyanines kation-cobalt azo complex anion dyestuff among the present invention.
Formula I, VI and VIII illustrate the cationic moiety of dyestuff respectively.
Formulae II, II ' and III represent the substituting group of Formula I, and chemical formula VII represents the substituting group of chemical formula VI.
Compound C-1 is represented the practical structures of cationic moiety to C-55.
Chemical formula A-1 to A-8 represents the azo complex anion of anionicsite respectively.
Chemical formula H-5 and H-6 represent first used among the present invention
Complex compound, and chemical formula H-1, H-2, H-3 and H-4 represent concrete instance.
Wherein encircle A1 and represent phenyl ring or naphthalene nucleus, ring A3 represents five-membered ring or hexatomic ring, and this five-membered ring or hexatomic ring can condense with another ring or replaced by another ring.R1 and R2 represent hydrogen atom independently of one another, have 1 alkyl to 8 carbon atoms, have 6 aryl to 20 carbon atoms, have 7 to the aralkyl of 20 carbon atoms or the substituting group of being represented by following Formulae II, II ' or III.R7 represents to have 1 alkyl to 8 carbon atoms, have 6 aryl to 20 carbon atoms, have 7 to the aralkyl of 20 carbon atoms or by the substituting group of following Formulae II or II ' expression; R12 represents the substituting group by following Formulae II or II ' expression; R20 represents hydrogen atom, hydroxyl, halogen atom, nitro, cyano group, have 1 alkyl to 8 carbon atoms, have 6 aryl to 20 carbon atoms, have 7 to the aralkyl of 20 carbon atoms or have 2 heterocyclic radical or amino to 20 carbon atoms.Have 1 methylene to the alkyl of 8 carbon atoms can by-O-,-S-,-CO-,-COO-,-SO
2-,-NH-,-CONH-,-N=CH-,-C ≡ C-or-CH=CH-replaces.An
Q-Expression q valency negative ion, q represents 1 or 2, and p represents to keep the coefficient of neutral charge.
In the superincumbent Formulae II, the key between L and the T is two keys, conjugated double bond or triple bond, and L represents carbon atom, and T represents carbon atom, oxygen atom, sulphur atom or nitrogen-atoms; X, y and z represent 0 or 1; S represents 0 to 4 numeral; R13 represents hydrogen atom, halogen atom or C1 to the C4 alkoxy that can be replaced by halogen atom; R14, R15 and R16 represent hydrogen atom, halogen atom or C6 to the C12 aryl that can be replaced by halogen atom independently of one another, and R14 and R16 can in conjunction with and form ring texture.Superincumbent Formulae II ' in, the key between L ' and the T ' is two keys or conjugated double bond, L ' expression carbon atom, T ' expression carbon atom, oxygen atom or nitrogen-atoms; The numeral of s ' expression 0 to 4; The ring that contains L ' and T ' represents to contain heteroatomic hexatomic ring or expression naphthalene nucleus, quinoline ring, isoquinoline ring, anthracene nucleus or anthraquinone ring, and contain the ring of L ' and T ' can be by halogen atom, nitro, cyano group, alkyl or alkoxy replacement.
Wherein Ra to Ri represents hydrogen atom, hydroxyl independently of one another or has 1 alkyl to 4 carbon atoms, methylene in this alkyl can by-O-or-CO-replaces, Z can represent Direct Bonding or have substituent C1 to C8 alkylidene, the methylene in this alkylidene can by-O-,-S-,-CO-,-COO-,-OCO-,-SO
2-,-NH-,-CONH-,-NHCO ,-N=CH-or-CH=CH-replaces, and M represents metallic atom.
Wherein encircle A1 and represent phenyl ring or naphthalene nucleus; X represent carbon atom, oxygen atom, sulphur atom, selenium atom ,-R8R9-,-NH-or-NR '-; R, R21 and R22 represent hydrogen atom independently of one another, have 1 alkyl to 8 carbon atoms, have 6 aryl to 20 carbon atoms, have 7 to the aralkyl of 20 carbon atoms or the substituting group of being represented by following chemical formula VII.R3, R4, R5 and R6 represent hydrogen atom, halogen atom independently of one another, have 1 to the alkyl of 8 carbon atoms or have 6 aryl to 12 carbon atoms; R3 and R4 can be combined into ring; R25 and represent to have 1 alkyl independently of one another, have 6 aryl, have 7 to the aralkyl of 20 carbon atoms or the substituting group of representing by following chemical formula VII to 20 carbon atoms to 8 carbon atoms as the R8 and the R9 of group among the X, and R8 and R9 can be combined into ring.The substituting group that R25 and R24 represent hydrogen atom, hydroxyl independently of one another, have 1 alkyl to 8 carbon atoms, have 1 alkoxy to 8 carbon atoms, have 6 aryl to 30 carbon atoms, halogen atom, nitro, cyano group or represented by top Formulae II I, and R23 and R24 can be combined into ring texture.Have 1 methylene to the alkyl of 8 carbon atoms can by-O-or-CH=CH-replaces.An
Q-Expression q valency negative ion, q represents 1 or 2, and p represents to keep the coefficient of neutral charge.D and J are identical with D and J among the following chemical formula VI.
Wherein R3, R4, R5 and R6 are identical with among the top chemical formula VI those.
Wherein encircle A1 and represent phenyl ring or naphthalene nucleus; R19 represents hydrogen atom, hydroxyl, has 1 alkyl to 8 carbon atoms, has 1 alkoxy to 8 carbon atoms, has 6 aryl to 30 carbon atoms, has 2 heterocyclic groups to 20 carbon atoms, halogen atom, nitro or cyano group; N is from 1 to 5 number; And A1, R21, R22, R25, X, An
Q-, p and q be identical with among the top chemical formula VI those.
Among the superincumbent chemical formula VIII, the example of C2 to the C20 heterocyclic group of being represented by R19 is: pyridine radicals, pyrimidine radicals, pyridazinyl (ピ リ ダ ジ Le), piperazinyl, piperidyl (ピ ペ リ ジ Le), pyranose, pyrazolyl, three thiazolyls (ト リ ア ジ Le), pyrrolidinyl, quinolyl, isoquinolyl, imidazole radicals, benzimidazolyl, triazolyl, furyl (Off リ Le), furyl (Off ラ ニ Le), benzofuranyl, thienyl, thiophenyl, the benzo thiophenyl, thiadiazolyl group, thiazolyl, benzothiazolyl oxazolyl benzoxazolyl, isothiazolyl, indyl, julolidine base (ユ ロ リ ジ Le), morpholinyl, thio-morpholinyl, 2-Pyrrolidone-1-base, 2-piperidones-1-base, 2,4-dioxy imidazolidine-3-base and 2,4-Er Yang oxazolidine-3-base.
C1 to C8 alkyl and the halogen atom represented by R19 are above those groups that Formula I described time institute's example.C1 to C8 alkoxy and C6 to the C30 aryl represented by R19 are above those groups that chemical formula VI described time institute's example.
Compound N o.1
Compound N o.2
Compound N o.3
Compound N o.4
Compound N o.5
Compound N o.6
Compound N o.7
Compound N o.8
Compound N o.9
Compound N o.10
Compound N o.11
Compound N o.12
Compound N o.13
Compound N o.14
Compound N o.15
Compound N o.16
Compound N o.17
Compound N o.18
Compound N o.19
Compound N o.20
Compound N o.21
Compound N o.22
Compound N o.23
Compound N o.24
Compound N o.25
Compound N o.26
Compound N o.27
Compound N o.28
Compound N o.29
Compound N o.30
Compound N o.31
Compound N o.32
Compound N o.33
Compound N o.34
Compound N o.35
Compound N o.36
Compound N o.37
Compound N o.38
Compound N o.39
Compound N o.40
Compound N o.41
Compound N o.42
Compound N o.43
Compound N o.44
Compound N o.45
Compound N o.46
Compound N o.47
Compound N o.48
Compound N o.49
Compound N o.50
Compound N o.51
Compound N o.52
Compound N o.53
Compound N o.54
Compound N o.55
Chemical formula 21:
Chemical formula 22:
Chemical formula 23:
Chemical formula 24:
Formula 3:
To come the present invention is explained in more detail by embodiment below.
Embodiment 1
Prepare such clear polycarbonate substrate, the thickness of this substrate is 0.6mm, and gash depth is that the pitch between 50nm, groove is that 0.4 μ m and groove width from 10% to 90% change successively.
By the rotating speed that changes spin coater, the tetrafluoropropanol solution that employing contains the organic dyestuff of 1.2 weight % these substrates are applied, thereby make optical density (OD) and be 0.1,0.2,0.3 and 0.4 coated substrate, wherein said organic dyestuff by single methyl cyanine dyes (for example comprises, shown in chemical formula C-1) cationic moiety that constitutes and by containing the anionicsite that the metal-organic complex (for example, as chemical formula A-1 shown in) of cobalt as central metal constitutes.Subsequently that coated substrate is following dry 30 minutes at 80 ℃.By vacuum sputtering, sputter is by Ag on each coated substrate then
99Bi
1The thick Ag alloy of 100nm that constitutes forms the reflection horizon.
At last, by using the uv-curing type resin as bonding agent, the clear polycarbonate substrate as dummy substrate is adhered to thereon, thereby form sample disc, the thickness of wherein said clear polycarbonate substrate is identical with the thickness of above-mentioned dish.
Subsequently, each dish be positioned over have in the disc drives of optical head that wavelength is 405nm, and at CD during with the linear velocity rotation of 6m/ second and 26m/ second, note through 8/12 modulation (1, signal 10RLL).
Then, by the bit error rate (BER) reproducing characteristic of signal is estimated.
Table 1
| Optical density (OD) | ??10％ | ??20％ | ??40％ | ??60％ | ??80％ | ??90％ |
| ??0.1 | ??8.0E-2 | ??3.0E-3 | ??2.0E-3 | ??3.0E-4 | ??4.3E-4 | ??4.2E-2 |
| ??0.2 | ??5.3E-3 | ??2.6E-3 | ??1.05E-3 | ??4.5E-4 | ??2.0E-3 | ??5.3E-2 |
| ??0.3 | ??3.5E-2 | ??6.2E-2 | ??5.3E-3 | ??4.3E-3 | ??6.3E-3 | ??4.3E-2 |
| ??0.4 | ??1.4E-1 | ??3.4E-2 | ??4.3E-2 | ??6.3E-3 | ??3.5E-2 | ??4.5E-2 |
The error correction of the BER of disc drives is limited to 3E-3.Therefore, if BER is lower than this numerical value, reading of data exactly usually then.When using optical density (OD) of the present invention and groove width, BER is lower than above-mentioned 3E-3, thereby shows and can realize error correction and normal data reproduction.
Prepare such clear polycarbonate substrate, the thickness of this substrate is 0.5mm, and gash depth is that the pitch between 50nm, groove is 0.32 μ m, and groove width from 20% to 90% changes successively.By vacuum sputtering, sputter is by Ag on each coated substrate
99Bi
1The thick Ag alloy of 60nm that constitutes forms the reflection horizon.
Then, by the rotating speed that changes spin coater, the tetrafluoropropanol solution that employing contains the organic dyestuff of 1.2 weight % these substrates are applied, thereby make optical density (OD) and be 0.1,0.2,0.3 and 0.4 coated substrate, wherein said organic dyestuff by single methyl cyanine dyes (for example comprises, shown in chemical formula C-5) cationic moiety that constitutes and by containing the anionicsite that the metal-organic complex (for example, as chemical formula A-3 shown in) of cobalt as central metal constitutes.
Subsequently that coated substrate is following dry 30 minutes at 80 ℃.Afterwards, form by ZnS:SiO by sputtering on each substrate
2The contact bed that the 20nm that makes is thick.At last, by using the uv-curing type resin the thick overlayer of 95 μ m that is made of polycarbonate resin is sticked on each substrate, thereby form sample disc.
Estimate the recording of these dishes by Pulstec ODU 1000 testers, it is 406nm and numerical aperture (N that wherein said tester has the recoding/reproduction wavelength X
A) be 0.85 optical system.In enterprising line item of the groove of substrate and reproduction.Dish rotates with the linear velocity of 5.3m/ second, and notes the mark lengths modulation signal of process (1,7) RLL-NRZI modulation.Reference clock cycle T under 1 * condition was 15.15 nanoseconds.That is, the channel clock frequency is 66MHz.
Carry out jitter measurement as follows.By the restriction balanced device tracer signal carry out wave shape equalizationization, and carry out binaryzation.Utilize front and back that time interval analyzer measures the forward position of channel clock signal and two-value signal along between mistiming distribution σ.T is under the situation in channel clock cycle making, and measures shake by σ/T.Following table 2 shows the result that obtains.
Table 2
| Optical density (OD) | ??10％ | ??20％ | ??40％ | ??60％ | ??80％ | ??90％ |
| ??0.1 | ??10.2％ | ??8.3％ | ??6.5％ | ??6.2％ | ??5.6％ | ??9.0％ |
| ??0.2 | ??9.5％ | ??7.9％ | ??6.40％ | ??5.5％ | ??6.2％ | ??9.5％ |
| ??0.3 | ??9.4％ | ??7.5％ | ??7.6％ | ??6.8％ | ??6.8％ | ??10.2％ |
| ??0.4 | ??11.0％ | ??8.6％ | ??8.5％ | ??7.2％ | ??8.6％ | ??11.0％ |
By inference, the limit of the practical characteristic of CD is: shake is less than or equal to 6.5%.When using optical density (OD) of the present invention and groove width, gained be dithered as 6.5% or lower, this shows that the CD that is positioned at this scope has the characteristic of practicality.
Other advantage and modification are conspicuous for the person of ordinary skill in the field.Therefore, aspect wideer, the present invention is not limited to the detail that this paper illustrates and describe and represents embodiment.Therefore, can under the situation of the spirit and scope that do not break away from the total inventive concept that defines with claims and equivalent thereof, make various modifications.
Claims (10)
1. recordable information recording medium, it is characterized in that described information recording carrier comprises: substrate, this substrate have circular concentric or spiral groove and groove bank; And recording layer, this recording layer is formed at the described groove of described substrate and groove on the bank, and comprise at least one organic dye layer, on this organic dye layer, be formed with record mark by applying laser beam, the optical density (OD) of wherein said organic dye layer is no more than 0.25, pitch between the described groove is 0.32 μ m to 0.4 μ m, and the width of each groove be between the described groove described pitch 50% to 80%.
2. medium according to claim 1 is characterized in that: the thickness of the described organic dye layer in the described groove is no more than 50nm, and the thickness of described groove described organic dye layer on the bank is no more than 10nm.
3. medium according to claim 1 is characterized in that: in described recording layer, be higher than the light reflectivity that applies before the described laser beam by the light reflectivity that applies the described record mark part that described laser beam forms.
4. medium according to claim 1, it is characterized in that: the anionicsite that described organic dye layer completely or partially comprises the dyestuff part and is made of metal-organic complex, and this organic dye layer includes organic dye, and this organic dyestuff has the maximum absorption wavelength zone at the wavelength place greater than described laser beam.
5. recordable information recording medium is characterized in that described information recording carrier comprises: substrate, this substrate have and are formed at described on-chip circular concentric or spiral groove and groove bank; Recording layer, this recording layer comprise described groove and the groove reflection horizon on the bank and the organic dye layer that is formed on the described reflection horizon that is formed at described substrate, and are formed with record mark by applying laser beam on this organic dye layer; And overlayer, this overlayer is formed on the described recording layer, the optical density (OD) of wherein said organic dye layer is for being no more than 0.2, and the pitch between the described groove is 0.32 μ m to 0.4 μ m, and the width of each groove be between the described groove described pitch 50% to 80%.
6. medium according to claim 5 is characterized in that: the thickness of the described organic dye layer in the described groove is no more than 50nm, and the thickness of described groove described organic dye layer on the bank is no more than 10nm.
7. medium according to claim 5 is characterized in that: in described recording layer, be higher than the light reflectivity that applies before the described laser beam by the light reflectivity that applies the described record mark part that described laser beam forms.
8. medium according to claim 5 is characterized in that: be formed with contact bed between described recording layer and described overlayer, mix between the material that this contact bed prevents described recording layer and the described tectal material.
9. medium according to claim 5 is characterized in that: described organic dye layer includes organic dye and by first
The quencher that metal complex constitutes, and described organic dye layer has the maximum absorption wavelength zone at the wavelength place greater than described laser beam wavelength, and wherein said organic dyestuff comprises cationic moiety that is made of single methyl cyanines and the anionicsite that is made of azo metal complex.
10. medium according to claim 5, it is characterized in that: described organic dye layer includes organic dye, and this organic dye layer has the maximum absorption wavelength zone at the wavelength place greater than described laser beam wavelength, and wherein said organic dyestuff comprises metal complex monomer and metal complex polymkeric substance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008170966 | 2008-06-30 | ||
| JP2008170966A JP2010009721A (en) | 2008-06-30 | 2008-06-30 | Write once information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101620868A true CN101620868A (en) | 2010-01-06 |
Family
ID=41514058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910134928A Pending CN101620868A (en) | 2008-06-30 | 2009-04-15 | Recordable information recording medium |
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| Country | Link |
|---|---|
| JP (1) | JP2010009721A (en) |
| CN (1) | CN101620868A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741928A (en) * | 2010-01-29 | 2012-10-17 | 日本化药株式会社 | Optical disc having organic pigment recording layer, and UV-curable resin composition therefor |
| TWI495696B (en) * | 2010-01-29 | 2015-08-11 | Nippon Kayaku Kk | Blu-ray disc, ultraviolet curable resin composition for the same and cured article |
-
2008
- 2008-06-30 JP JP2008170966A patent/JP2010009721A/en active Pending
-
2009
- 2009-04-15 CN CN200910134928A patent/CN101620868A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741928A (en) * | 2010-01-29 | 2012-10-17 | 日本化药株式会社 | Optical disc having organic pigment recording layer, and UV-curable resin composition therefor |
| TWI495696B (en) * | 2010-01-29 | 2015-08-11 | Nippon Kayaku Kk | Blu-ray disc, ultraviolet curable resin composition for the same and cured article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010009721A (en) | 2010-01-14 |
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