TWI386935B - Optical information recording media - Google Patents
Optical information recording media Download PDFInfo
- Publication number
- TWI386935B TWI386935B TW097133498A TW97133498A TWI386935B TW I386935 B TWI386935 B TW I386935B TW 097133498 A TW097133498 A TW 097133498A TW 97133498 A TW97133498 A TW 97133498A TW I386935 B TWI386935 B TW I386935B
- Authority
- TW
- Taiwan
- Prior art keywords
- layer
- substrate
- light
- information recording
- optical information
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24056—Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/25706—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing transition metal elements (Zn, Fe, Co, Ni, Pt)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/25708—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 13 elements (B, Al, Ga)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/25715—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing oxygen
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/2467—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes azo-dyes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
- G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
本發明係關於一種光資訊記錄媒體,尤其係關於對光記錄層使用有機色素之藍光光碟等具有更高記錄密度之光資訊記錄媒體。
作為資訊記錄媒體,正普及有光碟等光資訊記錄媒體。作為如此之光資訊記錄媒體,有例如CD-R等的於厚度1.2 mm、直徑120 mm或80 mm之透光性之樹脂基板上依次形成有記錄層、反射層之光資訊記錄媒體。近年來,逐漸要求更高之資訊記錄密度。因此,考慮縮短雷射波長且使用數值孔徑(NA:numerical aperture)較大之物鏡之方式,實現DVD±R等光資訊記錄媒體。該DVD±R為於短波長化與高NA化下增大光碟之傾斜角度(tilt)之容許值,而具有將兩片厚度0.6 mm之透光性樹脂基板結合,並於該基板間夾入反射層及記錄層之構造。
進而,近年來為記錄高精細之影像資料,逐漸要求更高之資訊記錄密度。因此,提出有如藍光光碟(BD-R)般,於厚度1.1 mm之樹脂基板上形成有反射層及記錄層,並於形成有該反射層及記錄層之面上設有厚度0.1 mm之透光層之構造之光資訊記錄媒體。具體而言,於外徑120 mm、內徑15 mm、厚度約1.1 mm之碟狀之基板上,具有反光層、相變化記錄層及厚度約0.1 mm之透光層,由數值孔徑約0.85之光頭自上述透光側照射波長約405 nm之雷射,從而可於
上述記錄層上記錄用戶資訊。
相對於此,亦研究有使用含有色素之記錄層來代替上述相變化記錄層。專利文獻1中提出有於基板111上至少具備含有有機色素之色素記錄層113以及由樹脂構成之透光層116之光資訊記錄媒體110。於該光資訊記錄媒體110中,於上述色素記錄層113與上述透光層116(或者接著劑層115)之間,設有用以防止上述色素記錄層113與透光層116(或者接著劑層116)相混和之中間層114。作為該中間層114,係由包含Ta之化合物或包含Nb之化合物,或者包含Ta及/或Nb之複合氧化物構成。又,該中間層114之層厚為1~80 nm。
[專利文獻1]日本專利特開2006-147135號公報
然而,於上述先前技術中記載之光資訊記錄媒體110中,於上述色素記錄層113與上述透光層116之間,具有由包含Ta之化合物或包含Nb之化合物等無機物構成之中間層114。並且,該中間層114與上述透光層116(或者接著劑層115)之密著性不良,因此於上述中間層114與上述透光層116(或者接著劑層115)之界面上容易產生剝離。尤其,當需要者誤將上述光記錄媒體110掉於地板上等時,自該光資訊記錄媒體110之外周側面111d於上述中間層114與上述透光層116(或者接著劑層115)之界面上容易產生剝離。如此,當中間層114與透光層116(或者接著劑層115)之界面上產生層間剝離時,存在外觀上之品質降低,並且耐環境性(耐濕性)等降低之問題。
本發明之目的在於提供一種不會如上述般於中間層與透光層之界面上產生剝離之光資訊記錄媒體。
為達成上述目的,本發明之光資訊記錄媒體,(1)具有中心形成有孔之圓板狀之基板,於該基板之一個主面上依次具有反光層、含有有機色素之色素記錄層、由無機物構成之中間層、由樹脂構成之透光層,自該透光層側照射雷射而對資訊進行記錄再生,
上述透光層遍及上述中間層之內周緣上至外周緣上並覆蓋該中間層之表面,且上述透光層之外周之緣部附近與上述基板於圍繞該基板之外周側面之環狀區域接觸。藉此達成上述目的。
根據本發明,上述基板與上述透光層之密著性提高,因此可防止於上述中間層與上述透光層之界面上產生剝離。
再者,主要之實施形態之之一,除了上述第一問題解決手段以外,進而有(2)於上述透光層上更具有硬塗層。
本發明之上述目的與除此以外之目的、構成特徵、作用效果,可根據以下之說明與隨附圖式而明確。
以下,參照圖1及圖2,對本發明之光資訊記錄媒體之第1實施形態進行說明。圖1係表示第1實施形態之光資訊記錄媒體10之整體構造之平面圖。圖2係用以說明上述第1實施形態之內部構造之概要之縱剖面圖。
如圖1及圖2所示,本實施形態之光資訊記錄媒體10具有
中心有孔且外徑約120 mm、內徑約15 mm、厚度約1.2 mm之碟狀之外觀。
由圖可知,基板11呈中心具有孔之圓板狀之外觀。該基板11之厚度約1.1 mm,該基板11之材質為樹脂製。又,於該基板11之一個主面11a上,形成有省略了圖示之螺旋狀之槽。
於該基板11之上述一個主面11a上,如下述形成有反射雷射之由Ag合金構成之反光層12。又,於該反光層12與上述基板11之形成有槽之一個主面11a接觸之一側為相反側之表面上,以與上述基板11之槽相對應之方式,以與上述基板11之槽相等之軌距呈螺旋狀地形成有溝槽(省略圖示)。又,於上述螺旋狀之溝槽中之彼此鄰接之溝槽間形成有省略圖示之訊面。
繼而,於上述反光層12上形成有含有光吸收物質之色素記錄層13,該光吸收物質吸收波長400~420 nm(例如405 nm)之雷射,且由如下述一般式1所示之有機色素構成。
(式中,環A表示其鍵合之碳原子及氮原子一起形成之
雜環,環B表示亦可取代之苯環,環C表示包含其鍵合之氮原子之雜環,其亦可與環B鍵合,X-
表示可具有活性氫之基,M2+
表示二價之陽金屬離子,表示將陰離子整體作為偶氮色素分子而使一個分子之M2+
鍵合於其兩個分子之金屬錯合物。)
並且,於上述色素記錄層13上,使用由Nb2
O5
-Al2
O3
系之複合氧化物構成、且該複合氧化物中之上述Nb2
O5
之比率為60 mol%之靶材,而形成有由無機物構成之中間層14,該無機物由Nb2
O5
-Al2
O3
系之複合氧化物構成、且該複合氧化物中之上述Nb2
O5
之比率為60 mol%。
進而,於上述中間層14上形成有由透明樹脂材料構成之透光層16。該透光層16之厚度約0.1 mm。又,於本實施形態之光資訊記錄媒體10中,於上述透光層16上進而設有由紫外線硬化性樹脂構成之硬塗層17,目的在於防止該透光層16表面之劃傷。
於本實施形態之光資訊記錄媒體10中,上述透光層16遍及上述中間層14之內周緣上至外周緣上並覆蓋該中間層14之表面,且上述透光層16之外周之緣部附近與上述基板11於圍繞該基板11之外周側面11d之環狀區域接觸。因此,上述基板11與上述透光層16之密著性提高。藉此,可防止於上述中間層14與上述透光層16之界面上產生剝離。
藉由自上述透光層16側對上述實施形態之光資訊記錄媒體10照射波長400~420 nm(例如405 nm)之雷射,上述色素記錄層14中之有機色素吸收上述雷射而發熱,形成可光學
讀取之省略圖示之訊坑,從而可良好地記錄用戶資訊。
其次,上述基板11之較佳實施形態如下。即,作為上述基板11,可任意選擇用作先前之光資訊記錄媒體之基板材料之各種材料而加以使用。具體而言,可列舉聚碳酸脂、聚甲基丙烯酸甲酯等丙烯酸系樹脂,聚氯乙烯、氯乙烯共聚物等氯乙烯系樹脂,環氧樹脂,非晶聚烯烴,聚酯樹脂,鋁等金屬,玻璃等,亦可視需要而併用該等材料。上述材料中,就成型性、耐濕性、尺寸穩定性及低價格等觀點考慮,較佳是熱可塑性樹脂,尤佳是聚碳酸脂。
當使用該等樹脂時,較佳是利用射出成形等方法將基板11製作成特定之形狀(若為光碟則為圓環狀)。又,上述基板11之厚度較佳是設為0.9~1.1 mm之範圍。此時,較佳是於基板11之射出成型所使用之模具內,配置於一個主面上實施有與上述槽相反圖案之螺旋狀之凸條之微細加工之被稱為壓模之模板,從而於上述基板11之射出成型之同時形成螺旋狀之槽。該槽一般係以0.35 μm或0.32 μm之間距而形成。又,基板11並不限定於此,例如亦可將紫外線硬化性樹脂塗佈於基台上,使塗膜硬化後自上述基台分離而用作基板11。
其次,上述反光層12之較佳實施形態如下。上述反光層12使資料之記錄及/或再生用之雷射反射,於本發明中,為賦予提高對雷射之反射率或改良記錄再生特性之功能,較佳是於基板11與色素記錄層13之間設置上述反光層12。作為上述反光層12,較佳是反射率較高之金屬薄膜,例如
Au、Al、Ag、Cu或Pd等金屬膜,該等金屬之合金膜,例如Ag合金或Al合金,或者於該等金屬中添加有微量成分之合金膜等,且較佳是藉由例如蒸鍍法、離子電鍍法、濺鍍法等而形成於上述基板11之形成有槽之一個主面11a上。其中,就量產性、成本方面考慮尤佳是濺鍍法。較佳是於上述反光層12之與上述基板11之一個主面11a接觸之一側相反之表面上,以與上述基板11之槽相對應之方式,以與上述基板11之槽相等之軌距而形成螺旋狀之溝槽。又,該溝槽較佳是藉由如下方式形成,即,於上述基板11之形成有上述螺旋狀之槽之一個主面11a上,利用濺鍍法等將上述反光層13以同樣之厚度形成。
其次,上述色素記錄層13之較佳實施形態如下。即,作為上述色素記錄層13,較佳是包含由吸收雷射之有機色素構成之光吸收物質。其中,較佳是藉由雷射照射而形成訊坑並記錄資料之色素型之光記錄層。作為上述有機色素,較佳是酞菁色素、菁色素、偶氮系色素等,更佳是下述一般式1所示之偶氮系色素。
(式中,環A表示其鍵合之碳原子及氮原子一起形成之雜環,環B表示亦可取代之苯環,環C表示包含其鍵合之氮原子之雜環,其亦可與環B鍵合,X-
表示可具有活性氫之基,M2+
表示二價之陽金屬離子,表示將陰離子整體作為偶氮色素分子而使一個分子之M2+
鍵合於其兩個分子之金屬錯合物。)
較佳是將上述一般式1所示之色素與結合劑等一起溶解於例如TFP(tetrafluoropropanol,四氟丙醇)等溶劑中並調整塗佈液,繼而,利用旋塗法或絲網印刷法將該塗佈液隔著上述反光層12等塗佈於上述基板11上而形成塗膜之後,例如以溫度80℃乾燥30分鐘左右,藉此形成上述色素記錄層13。
其次,上述中間層14之較佳實施形態如下。上述中間層14較佳是形成於上述色素記錄層13與下述透光層16之間,目的在於防止色素記錄層13與透光層16之混和等。
作為上述中間層14,較佳是由Nb2
O5
-Al2
O5
系之複合氧化物構成。本發明並不限定於此,可進行各種變更。該中間層14較佳是具有透光性,且較佳是利用例如蒸鍍法、離子電鍍法、濺鍍法等形成於形成有上述色素記錄層13之表面上。其中,就量產性、成本方面考慮尤佳是使用RF濺鍍裝置之濺鍍法。RF濺鍍裝置係於導電性之真空腔室與靶材之間施加交流(高頻)電壓,靶材側之電子無處逃逸而密度變高,結果靶材側偏壓成負,離子被引向靶材,與靶材碰撞之離子使靶材之粒子飛散,飛散之複合氧化物之粒子碰
撞、附著於基板11之上述色素記錄層13上,形成中間層(無機物層)14。當使用RF濺鍍裝置以濺鍍法形成上述中間層14時,真空腔室內之壓力較佳是1×10-2
~1×10-5
torr,濺鍍速度較佳是0.1~10 nm/sec。又,濺鍍功率較佳是0.2~2.5 kW。
其次,上述透光層16之較佳實施形態如下。即,作為上述透光層16,較佳是由透光性之樹脂構成,且較佳是將紫外線硬化性樹脂藉由旋塗法等而塗佈形成。上述透光層16之厚度較佳是0.1 mm,以便構成為照射通常400 nm~420 nm附近(例如405 nm)之波長之雷射而於上述色素記錄層13上記錄資料及/或自上述色素記錄層13讀出資料。該透光層16之透光率,於硬化後之厚度為0.1 mm且以波長400 nm~420 nm附近(例如,405 nm)之光利用分光光度儀進行測定時,較佳是70%以上,更佳是80%以上。
又,上述透光層16較佳是遍及上述中間層14之內周緣上至外周緣上並覆蓋該中間層14之表面,且上述透光層16之外周緣部附近與上述基板11於圍繞該基板11之外周側面11d之環狀區域接觸。
於上述基板11之外周側面11d上形成上述透光層16,例如較佳是於利用上述旋塗法進行透光性樹脂之塗佈之前後,與利用該旋塗法進行之塗佈獨立而另行於上述基板11之外周側面11d塗佈上述透光性樹脂而形成。
於上述基板11之外周側面11d上塗佈上述樹脂之塗佈方法,例如較佳是以與上述基板11之外周側面11d對向而接
觸或隔離之方式,配置省略圖示之轉印輥或噴霧噴嘴等塗佈機構,使用該塗佈機構將上述透光性之樹脂塗佈於圍繞上述基板11之外周側面11d之環狀區域上。藉此,可於上述基板11之外周側面11d上以均勻之厚度塗佈樹脂。又,本發明並不限定於此,例如,亦可使用與上述同樣配置之輥或刮刀等,將利用上述旋塗法之塗佈而於上述基板11之外周側面11d上不規則地溢出之未硬化之樹脂,於上述基板11之外周側面11d上塗開。
於上述基板11之外周側面11d上塗佈形成之透明樹脂之厚度較佳是100~300 μm,且較佳是與上述中間層14上塗佈之樹脂之厚度為同等或以上。又,上述透光層16較佳是以使其外周緣部到達上述基板11之外周側面11d之下端之方式而覆蓋上述基板11之外周側面11d之整個面,但本發明並不限定於此,只要於圍繞上述基板11之外周側面11d之環狀區域接觸即可。
其次,對本發明之實施形態之光資訊記錄媒體10之實施例進行說明。
於玻璃母盤上利用旋塗法分別以特定之厚度塗佈光阻劑(感光劑)而形成光阻劑膜,利用切割裝置之雷射以成為特定之曝光寬度尺寸之方式進行曝光之後,於所得之玻璃母盤上滴下顯影液,進行顯影處理,形成與碟狀之光資訊記錄媒體之基板之槽相對應之凹凸之抗蝕劑圖案。
繼而,於該玻璃母盤上藉由電鍍處理使鎳析出,將其剝
離,將外形修整為碟形狀而獲得壓模。
繼而,將該壓模設置於射出成型裝置之模腔內,向模腔內注入聚碳酸脂樹脂,獲得一個主面11a上具有螺旋狀之槽之基板11。
於該基板11之形成有上述螺旋狀之槽之一個主面11a上,使用濺鍍裝置以同樣之厚度濺鍍Ag合金,於與上述基板11之形成有槽之一個主面11a接觸之一側相反側之表面上,設置具備與上述基板11之槽相對應之螺旋狀溝槽且厚度為100 nm之反光層12。
進而,於該基板11之上述反光層12上,以厚度成為60 nm之方式,藉由旋塗法而塗佈含有上述一般式1所示之偶氮系有機色素之色素溶液,進行乾燥,形成色素記錄層13。
其次,於該色素記錄層13上,使用由Nb2
O5
-Al2
O3
系之複合氧化物構成、且該複合氧化物中之上述Nb2
O5
之比率為60 mol%之靶材,於RF濺鍍裝置之濺鍍功率為2.0 kW之條件下進行濺鍍,形成由無機物構成且厚度為25 nm之中間層14,該無機物由Nb2
O5
-Al2
O3
系之複合氧化物構成、且該複合氧化物中之上述Nb2
O5
之比率約為60 mol%。另外,上述靶材及上述中間層14之組成,藉由ICP分析裝置確認分別為上述構成。
其次,於該中間層14上,以遍及該中間層14之內周緣上至外周緣上且覆蓋該中間層14之表面之方式,藉由旋塗法塗佈紫外線硬化性樹脂,藉由UV照射使其硬化。繼而,
以與上述基板11之外周側面11d對向之方式配置轉印輥,於上述基板11之外周側面11d上,以於圍繞其之環狀區域接觸之方式藉由輥轉印法而塗佈與上述相同之紫外線硬化性樹脂,藉由UV照射使其硬化,形成上述中間層14上之厚度為0.1 mm、上述基板11之外周側面11d上之厚度為200 μm之透光層16。
進而,於上述透光層16上,藉由旋塗法塗佈由丙烯酸系樹脂構成之紫外線硬化性樹脂,製作具有厚度為2~3 μm之硬塗層17之光資訊記錄媒體之試料。
自上述透光層16側藉由目測觀察所製作之光資訊記錄媒體10之試料之外觀,結果未觀察到上述中間層14與上述透光層16之界面上之自上述外周側面11d側之剝離。
繼而,使上述光資訊記錄媒體10自80 cm之高度落至樹脂製方塊之角部上,對於所得之試料,再次觀察上述中間層14與上述透光層16之界面上之自上述外周側面11d側之剝離,結果未觀察到自上述外周側面11d側之剝離。
於上述中間層上,使用紫外線硬化性接著劑來接著厚度0.1 mm之透明樹脂薄片而形成透光層,除此以外,與上述實施例同樣地準備比較例之光資訊記錄媒體之試料,與上述實施例同樣地對中間層與透光層之界面上之剝離之有無以及與上述同樣之落下測試後之自外周側面側之剝離之有無進行觀察,結果於落下測試後之試料中,分別觀察到自外周側面側之剝離。
於上述第1實施形態之光資訊記錄媒體10中,於基板11之一個主面11a上依次形成有反光層12、及色素記錄層13,於該色素記錄層13上形成有上述中間層14,但本發明並不限定於此,亦可於上述基板11之一個主面11a上直接形成中間層14或隔著其他層而形成中間層14。
又,於上述第1實施形態之光資訊記錄媒體10中,於上述透光層16上進而設有硬塗層17,但本發明並不限定於此,亦可省略上述硬塗層17。
10‧‧‧光資訊記錄媒體
11‧‧‧基板
11a‧‧‧一個主面
11b‧‧‧另一個主面
11c‧‧‧內周側面
11d‧‧‧外周側面
12‧‧‧反光層
13‧‧‧色素記錄層
12‧‧‧中間層
16‧‧‧透光層
17‧‧‧硬塗層
圖1係表示本發明之光資訊記錄媒體之第1實施形態之整體構造之平面圖。
圖2係表示上述第1實施形態之內部構造之縱剖面圖。
圖3係表示先前技術之光資訊記錄媒體之平面圖。
圖4係表示先前技術之光資訊記錄媒體之剖面圖。
10‧‧‧光資訊記錄媒體
11‧‧‧基板
11a‧‧‧一個主面
11b‧‧‧另一個主面
11c‧‧‧內周側面
11d‧‧‧外周側面
12‧‧‧反光層
13‧‧‧色素記錄層
14‧‧‧中間層
16‧‧‧透光層
17‧‧‧硬塗層
Claims (2)
- 一種光資訊記錄媒體,其具有中心形成有孔之圓板狀之基板,於該基板之一個主面上依次具有反光層、含有有機色素之色素記錄層、由無機物構成之中間層、由樹脂構成之透光層,自該透光層側照射雷射而對資訊進行記錄再生,其特徵在於:上述透光層遍及上述中間層之內周緣上至外周緣上並覆蓋該中間層之表面,且上述透光層之外周緣部附近與上述基板於圍繞該基板之外周側面之環狀區域接觸。
- 如請求項1之光資訊記錄媒體,其中上述透光層上更具有硬塗層。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007247557A JP2009080871A (ja) | 2007-09-25 | 2007-09-25 | 光情報記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200923939A TW200923939A (en) | 2009-06-01 |
TWI386935B true TWI386935B (zh) | 2013-02-21 |
Family
ID=40104659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW097133498A TWI386935B (zh) | 2007-09-25 | 2008-09-01 | Optical information recording media |
Country Status (5)
Country | Link |
---|---|
US (1) | US7835257B2 (zh) |
EP (1) | EP2045805A1 (zh) |
JP (1) | JP2009080871A (zh) |
CN (1) | CN101404165A (zh) |
TW (1) | TWI386935B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4695632B2 (ja) * | 2007-10-05 | 2011-06-08 | 太陽誘電株式会社 | 光情報記録媒体 |
JP2012164372A (ja) * | 2011-02-03 | 2012-08-30 | Sony Corp | 光情報記録媒体の製造方法および光情報記録媒体 |
JP2016207234A (ja) * | 2013-10-03 | 2016-12-08 | パナソニックIpマネジメント株式会社 | 光情報記録媒体 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5132152A (en) * | 1989-06-21 | 1992-07-21 | Hitachi Maxell, Ltd. | Optical recording medium and method for manufacturing the same |
TW200517457A (en) * | 2003-10-06 | 2005-06-01 | Fuji Photo Film Co Ltd | Hard coating article, curing composition, and information recording media |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0245833B1 (en) * | 1986-05-14 | 1991-10-09 | Teijin Limited | Magneto-optical recording medium |
JP2551994B2 (ja) * | 1989-05-15 | 1996-11-06 | シャープ株式会社 | 光磁気ディスクの製造方法 |
JP3588608B2 (ja) * | 2002-05-31 | 2004-11-17 | 株式会社東芝 | 光ディスク及び光ディスク製造方法 |
TWI317516B (en) * | 2002-06-07 | 2009-11-21 | Fujifilm Corp | Photo-data recording media |
TW200621645A (en) * | 2004-10-20 | 2006-07-01 | Fuji Photo Film Co Ltd | Optical recording medium |
JP2006147135A (ja) | 2004-10-20 | 2006-06-08 | Fuji Photo Film Co Ltd | 光記録媒体 |
-
2007
- 2007-09-25 JP JP2007247557A patent/JP2009080871A/ja not_active Withdrawn
-
2008
- 2008-09-01 TW TW097133498A patent/TWI386935B/zh not_active IP Right Cessation
- 2008-09-18 EP EP08253070A patent/EP2045805A1/en not_active Withdrawn
- 2008-09-23 CN CNA2008101613483A patent/CN101404165A/zh active Pending
- 2008-09-24 US US12/237,324 patent/US7835257B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5132152A (en) * | 1989-06-21 | 1992-07-21 | Hitachi Maxell, Ltd. | Optical recording medium and method for manufacturing the same |
TW200517457A (en) * | 2003-10-06 | 2005-06-01 | Fuji Photo Film Co Ltd | Hard coating article, curing composition, and information recording media |
Also Published As
Publication number | Publication date |
---|---|
US7835257B2 (en) | 2010-11-16 |
JP2009080871A (ja) | 2009-04-16 |
CN101404165A (zh) | 2009-04-08 |
TW200923939A (en) | 2009-06-01 |
US20090116369A1 (en) | 2009-05-07 |
EP2045805A1 (en) | 2009-04-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1999000794A1 (fr) | Support d'enregistrement optique et dispositif de disque optique | |
TWI386935B (zh) | Optical information recording media | |
US20080241525A1 (en) | Stamper for optical information recording medium, master for magnetic transfer, and manufacturing methods thereof | |
US20090073866A1 (en) | Optical Information Recording Medium and Method for Manufacturing Same | |
JP4714703B2 (ja) | 光情報記録媒体の製造方法及び光情報記録媒体 | |
JP2007294055A (ja) | 光情報記録媒体及び光情報記録媒体の製造方法 | |
TWI261833B (en) | Optical information recording medium, method for producing optical information recording medium and method for recording optical information | |
TW200306555A (en) | Optically information-recording medium | |
JP2009087431A (ja) | スタンパ原版の製造方法及びスタンパ原版 | |
JP4695632B2 (ja) | 光情報記録媒体 | |
JP4810453B2 (ja) | 光情報記録媒体 | |
JP4755680B2 (ja) | 光情報記録媒体およびその製造方法 | |
JP2008123574A (ja) | 光情報記録媒体用スタンパ原版および光情報記録媒体用スタンパの製造方法 | |
JP2007152825A (ja) | 光記録媒体の製造方法 | |
JP2007109353A (ja) | 光情報記録媒体 | |
JP3600177B2 (ja) | 光記録媒体及びその製造方法 | |
US20080241308A1 (en) | Stamper for optical information recording medium, master for magnetic transfer, and manufacturing methods thereof | |
JP4312211B2 (ja) | 光情報記録媒体およびその製造方法 | |
US20090180374A1 (en) | Optical information recording medium and method for producing the same | |
JP2010134978A (ja) | 光記録媒体の製造方法及び製造装置 | |
JP2007066379A (ja) | 光記録媒体の製造方法 | |
WO2006093038A1 (ja) | スタンパ、金型及び光ディスク基板の製造方法 | |
JP2007035181A (ja) | 光ディスクカートリッジ収納体 | |
JP2001056971A (ja) | 光ディスク媒体の製造方法および光ディスク媒体 | |
JP2008299967A (ja) | 情報記録媒体及び光情報記録媒体の基板成型用金型、光情報記録媒体の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |