TWI282883B - Phosphor blends and backlight sources for liquid crystal displays - Google Patents

Phosphor blends and backlight sources for liquid crystal displays Download PDF

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TWI282883B
TWI282883B TW092125345A TW92125345A TWI282883B TW I282883 B TWI282883 B TW I282883B TW 092125345 A TW092125345 A TW 092125345A TW 92125345 A TW92125345 A TW 92125345A TW I282883 B TWI282883 B TW I282883B
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light
liquid crystal
emitting
spectrum
mixture
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TW200420975A (en
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Anany Achut Setlur
Alok Mani Srivastava
Holly Ann Comanzo
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Gen Electric
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    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
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    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/7737—Phosphates
    • C09K11/7738—Phosphates with alkaline earth metals
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    • C09K11/7737—Phosphates
    • C09K11/7738—Phosphates with alkaline earth metals
    • C09K11/7739—Phosphates with alkaline earth metals with halogens
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    • H05B33/00—Electroluminescent light sources
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  • Luminescent Compositions (AREA)
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Description

1282883 玖、發明說明： 【發明所屬之技術領域】 本發明首先係構想或簡化成實施美國國家標準及技術協 會（Untied States National Institute of Standards and
Technology)所頒佈之章程 7〇 NANN8H4022。 【先前技術】 本發明大體上有關一種液晶顯示器（"LCD”）及其背光 源。本發明尤其有關一種用於彩色LCD之改良背光源使用 的麟摻合物。 LCD廣泛使用於電子工業產品，由行動電話、計算機、 及手錶’以至電腦及汽車中之資訊顯示器。LCD在諸如尺 寸、價格、設計、變通性、可信度、及電力消耗之領域中， 具有許多超越同等顯示技術的優點。此等優點使得Lcd成 為電子裝置設計者所泛用之選擇。 液晶材料之特徵在於通經液晶薄層之透光度可藉由施加 電場於該材料上而改變。LCD利用此種性質。 LCD之必要成份係為容裝於兩片由諸如玻璃或有機聚合 物之材料所製得的透明板之間的薄層液晶材料。該透明板 之内表面係配置有透明電極，其界定欲顯示之圖案、文字 或影像。該透明板之外表面配置有偏光板。於一對對應之 電極兩端施加電壓時，視該偏光透鏡之相對取向，而阻斷 光線或使之通經該組合件。兩電極重疊之位置界定該顯示 益之一像素。該顯示器係稱為被動陣列型顯示器。主動陣 列型顯示器中，薄膜電晶體（TFT)矩陣係配置於一透明板
O:\87\87802.DOC -6- 1282883 上，以作為開關元件。共用電極係配置於第二透明板上。 田4寸疋ΙΓΊΓ經定址以連通時，介於丁？丁與共用電極間之液晶 材料夂成非扭轉，而使光線通過。施加經準確控制之電屡 :3 TFT ’以控制該像素上之亮度。紅色、綠色及藍色濾色 系-己置於相鄰像素’以在使I經控制之電壓位準啟動所 k擇之TFTk ’自各組三個丁?丁產生不同色澤及色彩。 ，就具有高亮度之顯示裝置而言，於透明板相與觀測者相 、寸之後方配置月光源。此時一般使用小型螢光燈或多個發 :一極體（LED”)。該種發射寬幅光譜之光源與濾色器結 合:可使特Μ色通經該像素。美國專利第5,982,G92號所 揭不之一發射白光的背光系統係包括發射波長範圍為％〇 至380奈米之藍光或紫外線（"UV”）輻射的半導體LED，結合 有I射貝光之YsAlsOaCe磷層。然而，該系統無能量效率， 因之發射光譜並非集中於一般使用之濾色器 的特定波長範圍（約44〇至偏奈米、約55〇至57〇奈米、及約 630至680奈米），如圖1所示。 因此，仍需要提供一種供LCD使用之更有效率背光系 、、充亦極期主提供改良型彩色LCD使用之麟摻合物。 【發明内容】 本發明提供一種供LCD中之背光源使用的磷組合物。該 鱗組合物藉由更強地發射在一般藍色、綠色及紅色渡色器 之波長範圍内的可見光，而提供改良之能量利用率。「光」 及「電磁輻射」用辭在此可交換使用以表示具有佳於約2〇〇 奈米至約770奈米範圍内之波長的電磁輻射。
O:\87\87802.DOC 1282883 該混合物製得，且固化以配置於該背光與該液晶材料層之 間。「貫質透明」一辭意指使至少80百分比之可見光波長的 光通經約1 *米厚度。適於製造光轉換片之樹脂的實例係包 括（但不限於）丙烯酸樹脂、環氧樹脂、聚矽酮、及經聚矽酮 吕月匕化之％氧樹脂。該光轉換片亦可包含粒徑如同該磷摻 合物的散光材料粒子，諸如丁丨…或八丨…3。該光轉換片可藉 任何適當之方法製得，諸如鑄造、塗敷、輥塗、喷灑於一 基材上等。 圖4透射地出示LCD 1〇之個別組件，該[(：1)使用本發明背 光…、明具體貫例。LED 20與其所連接之電路係配置於托盤 25之側牆22上。托盤25具有反射性底面24，用以向上反射 由LED 20所發射之電磁輻射。包含本發明磷摻合物粒子（分 散於實質透明之樹脂中）之光轉換片3〇係配置於托盤25 上。光轉換片30中之磷粒子接收且吸收由LED 20所發射及 自表面24反射之電磁輻射，發射強度集中於可見光波長之 藍光、綠光及紅光區的光線。散光層（未示）可配置於托盤25 與光轉換層30之間。散光層一般（至少於一表面上）具有高突 特徵，諸如凸點或波紋條紋。第一偏光板4〇係配置於光轉 換層30上。液晶材料層55(諸如扭轉向列液晶）係容裝於兩透 明板50與60之間。薄層55與透明板5〇及6〇之組合件係配置 於該第一偏光板40上。透明板50與6〇與液晶層乃相鄰之表 面具有經圖案化之電極，當該電極間施加電壓時，於該液 晶材料上賦予像素矩陣。藍色、、綠色及紅色濾色㈣配置 於一透明板上像素之位置，以控制穿透各個像素之光色。
O:\87\87802.DOC -11 - 1282883 於使用led作為背光之光源的具體實例中 软員貝逐 Η摻合物、及選擇性散光材料之混合物係成形為光 ^換鑄膜’配置於各LED之半導體發光元件旁，以接收其 所發射之光。 本I月圖5所不之另一具體實例中，提供LCD 10背光之光 、皋係匕括有機發光裝置（"〇ELD") 8〇。該一般包括 配置於兩屯極83與87之間的有機電致發光（,见"）層85，該 有機EL材料可在電極83與87兩端施加電壓時發光。尚可將 電極83與87及有機發光層85之組合體配置或形成於-由玻 璃或有機聚合物製得之實質透明基材上。其中一電極卜般 為陽極)係由實質透明導電性氧化物(諸如氧化銦錫(IT0)、 氧化錫、氧化銦、氧化鋅、氧化姻辞、氧化録錫、或其混 合物）製得，配置於該有機發光層與該液晶層之間，使得來 自有機發光層之光可穿透進人液晶層。有機EL材料之非限 制實例有聚合物、共聚物、聚合物之混合物、及低分子量 有機分子，皆具有不飽和鍵結。該材料具有料域^電子 系統，使得該聚合物鏈或有機分子具有支持正及負 流子之高移動性的能力。適當桃聚合物有聚（η-乙稀基，卡 唾）（pvk ’發射波長約380至5⑽奈米之紫光至藍光）·聚（院 基弗），諸如聚（9,9_二己基第）⑷0-550奈米），聚（ 基）_弗，二基_至⑽奈米），·聚（對-伸苯基）衍生物， 諸如^十二碳氧]，4_伸苯基胸_55q奈旬。此等聚人物 …寺聚合物及其他聚合物中之-或多種為底
O:\87\87802.DOC -13 - 1282883 質的共聚物可用以調整發射光之色彩。 另一類適當之EL聚合物係為聚矽烷。聚矽烷係為經各種 烷基及/或芳基側基所取代之直鏈矽_主鏈聚合物。其係為在 聚合物主鏈上具有非定域心共軛電子的擬單維材料。聚矽 烷之實例有聚（二-正丁基矽烷）、聚（二_正戊基矽烷）、聚（二 -正己基矽烷）、聚（甲基苯基矽烷）、及聚{雙（對_丁基苯基） 石夕烧} ’ 揭示於 H· Suzuki 等，丨，Near_Uhravi〇let
Electroluminescence From P〇lySiianes”，331 Thin
Fihns 64-70 (1998)。此等聚矽烷發射波長由約32〇奈米至約 420奈米之光。 亦可使用分子量低於約5000而由大量芳族單元製得之有 機材料。該材料之實例有以，％三{η_(4·二苯基胺基苯基）苯 基胺基}苯，發射波長為380至5〇〇奈米之光。該有機£匕層亦 可自低分子量有機分子製備，諸如苯基蒽、四芳基乙烯、 香豆素、紅螢烯、四苯基丁二烯、蒽、二萘嵌苯、暈苯、 或其衍生物。此等材料通常係發射最大波長約52〇奈米之 光。另一種適當之材料係為低分子量金屬有機錯合物，諸 如乙醯基丙酮酸-鋁、-鎵、及-銦（其發射波長範圍415奈米 至457奈米之光）、鋁皮考基曱基輞）_雙{2,6-二（第三丁基） 酚基}或銃-(4-甲氧基_皮考基甲基酮）_雙（乙醯基丙蜩酸 根）（於420至433奈米範圍内發光）。 可述之光轉換片係配置於該有機發光層舆該液晶層之 間，將該有機EL層所發射之光轉換成在濾色器之波長範圍 内具有實質強度之光。 & O:\87\87802.DOC -14- 1282883 雖已於前文揭示本發明特定較佳具體實例M旦熟習此項 技術者已知可在不偏離申請專利範圍所界定之本發明精神 及範圍的情況下，進行許多修飾、置換或改變。 【圖式簡單說明】 圖1係為美國專利第5,982,〇92號所揭示之先前技術[CD 背光中所使用之類型的Y3Al5〇i2:Ce3+磷之發射光譜。 圖 2出示由（Sro.wEuuMno.iMgo.yAC^、SECA 及 MFG 所 組成之磷摻合物的發射光譜。 圖3出示由CASI、SECA、及MFG所組成之磷摻合物的發 射光譜。 圖4透視地出示一LCD之個別組件，使用包括LED及一本 發明光轉換層的背光照明系統。 圖5透視地出示一LCD之個別組件，使用包括一有機電致 發光裝置及一本發明光轉換層的背光照明系統。 【圖式代表符號說明】 10 LCD 20 LED 22 側牆 24 反射性底面 25 托盤 30 光轉換片 40 第一偏光板 50, 60 透明板 55 液晶材料層 O:\87\87802.DOC -15- 1282883 70 第二偏光板 80 OELD 83, 87 電極 85 有機電致發光（nEL”）層 O:\87\87802.DOC -16-

Claims (1)

1282搬 _ 弟6^125345號專利申請案 -----—---. 中文申睛專利範圍替換本(96年2月） 花年乂月丨日修(更)正本 拾、申请專利範圍： 1 · 一種供液晶顯示器（LCD)之背光源使用的磷組合物，該 麟組合物係包含至少一種發射藍光之磷、至少一種發射 綠光之碟、及至少一種發射紅光之填；其中該至少一種 發射藍光之碌係選自由（Sr，Ca，Ba，Mg)1Q(P〇4)6 (F5Cl5Br?OH):Eu2+ ； Ba?Sr?Ca)MgAl10〇17：Eu2+ ； (Sr?Ca)10(P〇4)6. nB2〇3:Eu2+，其中 〇<η<ι ; 2SrO.0.84P2O5.0.16B2O3: Eu2+ ； Sr2Si308*2SrCl2:Eu2+ ； Ba3MgSi208：Eu2+ ； Sr4Al14025: _ Eu ’ BaAlsOaEu24 ;及其混合物所組成之群；該至少 種發射綠光之填係選自由（Ba，Sr，Ca)MgAl1Q017: Eu2 5Mn2+; (Ba，Sr，Ca)Al204:Eu2+; (Y，Gd，Lu，Sc，La)B03:Ce3+，Tb3+; (Ba，Sr，Ca)2Si04:Eu2+; (Ba5Sr5Ca)2(Mg，Zn)Si207:Eu2+; Sr，Ca，Ba) (Al，Ga，In)2S4:Eu2+; (Y，Gd，Tb，La，Sm，Pr，Lu)x(Al5Ga，In)y012:Ce3+ ’其中X係由約2.8至3且包括3，且y係約4.9至約5.1; (Sr，Ca，Ba，Mg5Zn)2P2〇7:Eii2+，Mn2+; (Ca，Sr，Ba，Mg)10(PO4)6 (F5C13r3OH):Eu2+?Mn2+; (Ca?Sr3a)8(Mg?Zn)(Si04)4(Cl5F)2: _ Eu2+，Mn2+ ;及其混合物所組成之群；該至少一種發射 紅光之碟係選自由（Gd，Y，Lu，La)2〇3:Eu3+5Bi3+; (Gd，Y，Lu，La)202S: Ευ，Βι3 ; (Gd，Y，Lu，La)V04:Eu3+，Bi3+; SrS:Eu2+; SrY2S4:Eu2+; CaLa2S4：Ce3+; (Ca?Sr)S:Eu2+; 3.5Mg〇-0.5MgF2-GeO2:Mn4+; (Ba，ST，Ca)MgP2〇7:Eu2+，Mn2+;及其混合物所組成之群。 2·如申請專利範圍第1項之磷組合物，其中該磷組合物係 至少吸收该背光源所發射之第一光譜的光之一部分，且 發射具有異於該第一光譜之第二光譜的光。 87802-960216.doc 1282883 3. 如申請專利範圍第2項之磷組合物，其中該第二光譜於 約440至460奈米、約55 0至570奈米及約630至680奈米之 波長區中具有高於可見光譜之至少另一區中的強度。 4. 如申請專.利範圍第1項之磷組合物，其中該磷組合物係 包含（Sro.wEuuMnojMgo.HhPW?、（Sr，Ca，Ba，Mg)1〇 (P04)6(F，Cl，Br，〇H):Eu2+、及3.5Mg〇.0.5MgF2.GeO2:Mn4+。 5 ·如申請專利範圍第1項之鱗組合物，其中該麟組合物係 包含（Ca，Sr，Ba)8(Mg，Zn)(Si04)4(Cl，F)2:Eu2+，Mn2+ 、 (Sr，Ca，Ba，Mg)10(p〇4)6(F，Cl，Br，OH):Eu2+、及3.5MgO.0.5MgF2. Ge02:Mn4+ 〇 6· —種供LCD使用之背光照明系統，包括： 一背光源，發射具有至少在約300奈米至約450奈米範 圍内之第一光譜的光；及 一磷組合物，其包含至少一種發射藍光之磷、至少一 種發射綠光之填、及至少一種發射紅光之填；其中該至 少一種發射藍光之磷係選自由 (Sr，Ca，Ba，Mg)10(P〇4)6(F，Cl，Br，OH):En2+ ; Ba，Sr，Ca)MgAl10 〇ΐ7:Ειι ，（Sr，Ca)]〇(P〇4)6.nB2〇3:Eu2+，其中 0<η<1 ； 2Sr〇-0.84P2〇5-〇.16B2〇3：Eu2+ ； Sr2Si308-2SrCl2：Eu2+ ； Ba3MgSi208：Eu2+ ； Sr4Al14025:Eu2+ ; BaAl8013:Eu2+ ;及 其混合物所組成之群；該至少一種發射綠光之磷係選自 由（Ba，Sr5Ca)MgAl10O17:Eu2+，Mn2+; (Ba，Sr，Ca)Al204:Eu2+; (Y，Gd，Lu，Sc，La)B03:Ce3 +，Tb3 + ; (Ba?Sr?Ca)2Si04：Eu2 + ; (Ba，Sr，Ca)2(Mg，Zn)Si207:Eu2+; (Sr，Ca，Ba)(Al，Ga，In)2S4:Eu2+; 87802-960216.doc 1282883 (Y，Gd，Tb5La，Sm，Pr，Lu)x(Al，Ga5In)y〇12:Ce3+，其中 χ係由 約2.8至3且包括3 ，且y係約4.9至約5.1; (Sr，Ca，Ba，Mg，Zn)2P2〇7:Eu2+5Mn2+; (Ca，Sr，Ba，Mg)10(P〇4)6 (F，Cl，Br，〇H):Eu2+，Mn2+; (Ca，Sr，Ba)8(Mg，Zn)(Si04)4(Cl，F)2: Eu2+，Mn2+;及其混合物所組成之群；該至少一種發射紅 光之磷係選自由（Gd，Y，Lu，La)2〇3:Eu3+，Bi3+; (Gd，Y，Lu，La)2〇2S: Eu3+，Bi3+; (Gd，Y，Lu，La)V04:Eu3+，Bi3+; SrS:Eu2+; SrY2S4:Eu2+; CaLa2S4：Ce3+; (Ca?Sr)S:Eu2+; 3.5MgO·0.5MgF2·Ge02:Mn4+; (Ba，Sr，Ca)MgP2〇7:Eu2+，Mn2+ ;及其混合物所組成之 群；其中該填組合物係配置成至少吸收該第一光譜之光 的一部分，且發射具有異於該第一光譜之第二光譜的 光。 7·如申請專利範圍第6項之背光照明系統，其中該第二光 譜於約440至460奈米、約550至570奈米及約630至680 奈米之波長區中具有高於可見光譜之至少另一區中的 強度。 8.如申請專利範圍第6項之背光照明系統，其中該磷組合 物係包含（81*().79£11().1]\4110.11^().11)2?2〇7、（81^&，3&3§)10 (P04)6(F，Cl，Br，0H):Eu2+、及3.5MgO.0.5MgF2.GeO2:Mn4+。 9·如申請專利範圍第6項之背光照明系統，其中該磷組合 物係包含（Ca，Sr5Ba)8(Mg，Zn)(Si〇4>4(Cl，F>2:Eu2 +，Mn2+、 (Sr，Ca，Ba，Mg)】0(p〇4)6(F，Cl，Br5OH):Eu2+ 、及 3.5MgO. 0.5MgF2-GeO2:Mn4+ 〇 10·如申請專利範圍第6項之背光照明系統，其中該磷組合 87802-960216.doc 1282883 物係分散於一實質透明樹脂中，以形成一混合物，該混 合物係形成一光轉換層，配置於該背光源與該LCD之一 液晶材料層之間。 11 ·如申請專利範圍第10項之背光照明系統，其中該實質透 明樹脂係包含至少一種選自由丙烯酸酯樹脂、環氧樹 月曰、聚矽酮、及經聚矽酮_官能化之環氧樹脂所組成之 群的材料。 12. 如申請專利範圍第1 〇項之背光照明系統，其中該混合物 尚包含散光材料粒子。 13. 如申請專利範圍第6項之背光照明系統，其中該背光源 係至少包含一發光二極體（LED)。 14. 如申請專利範圍第13項之背光照明系統，其中該混合物 係配置於該LED之發光元件上。 15·如申請專利範圍第6項之背光照明系統，其中該背光源 係至少包括一有機電致發光裝置（OELD)。 士申明專利乾圍第1 5項之背光照明系統，其中該〇eld 係包括配置於兩電極之間的有機發光層，而該有機發光 層係於該電極兩端施加電壓時發射光線。 17. —種液晶顯示器，包括： Ο) —背光照明系統，包括： —背光源，發射具有至少介於約300奈米至約45〇 奈米範圍内之第一光譜的光；及 (2) —碟組合物，其包含至少一種發射藍光之碟、至 夕 種發射綠光之填、及至少一種發射紅光之 87802-960216.doc 1282883 石粦，其中該至少一種發射藍光之;&粦係選自由 (Sr，Ca，Ba，Mg)10(P〇4)6(F，Cl，Br，OH):Eu2+ ; (Ba，Sr，Ca) MgAl10O17:Eu2+ ; (Sr，Ca)i0(P〇4)6.nB2〇3:Eu2+，其 *0<n<l;2SrO.0.84P2〇5.0.l6B2〇3:EU2+;Sr2Si3O8· 2SrCl2：Eu2 ； Ba3MgSi208：Eu2+； Sr4Al14〇25：Eu2+； ΒαΑΙδΟυίΕιι2 ，及其混合物所組成之群；該至少 一種發射綠光之磷係選自由 (Ba，Sr，Ca)MgAl10O17:Eu2+，Mn2+; (Ba，Sr5Ca)Al204:Eu2+; (Y，Gd，Lu5Sc，La)B03:Ce3+，Tb3+; (Ba，Sr，Ca)2Si04:Eu2+; (Ba，Sr，Ca)2(Mg，Zn)Si207:Eu2+; (Sr5Ca，Ba)(Al，Ga，In)2S4:Eu2+; (Y，Gd，Tb，La，Sm，Pr，Lu)x(Al，Ga5In)y〇12:Ce3+，其中 x 係由約2 · 8至3且包括3，且y係約4.9至約5 · 1; (Sr，Ca，Ba5Mg，Zn)2P207:Eu2+5Mn2+; (Ca，Sr，Ba，Mg)I0 (P04)6(F，Cl，Br，OH):Eu2+，Mn2+; (Ca，Sr，Ba)8(Mg，Zn) (Si04)4(Cl，F)2:Eu2+，Mn2+;及其混合物所組成之 群；該至少一種發射紅光之磷係選自由 (Gd，Y，Lu，La)203:Eu3+，Bi3+; (Gd，Y，Lu，La)202S:Eu3+，Bi3+; (Gd?Y?Lu?La)V04：Eu3 + 5Bi3 + ; SrS:Eu2+; SrY2S4：Eu2+; CaLa2S4:Ce3+; (Ca，Sr)S:Eu2+; 3.5MgO.0.5MgF2.Ge〇2:Mn4+; (Ba5Sr，Ca)MgP207:Eu2 +，Mn2+ ;及其混合物所組成 之群；其中該磷組合物係配置成至少吸收該第一 光譜之光的一部分，且發射具有異於該第一光譜 之第二光譜的光；及 一液晶材料’用以接收具有該第二光譜之光。 87802-9602l6.doc 1282883 18_如申請專利範圍第17項之液晶顯示器，其中該液晶材料 係配於對$—及第二實質透明板之間，該板與該液晶 材料相郯之表面各具有電極，使得兩電極之重疊區界定 該液晶顯示器之多個像素；且每三個相鄰像素配置有使 藍光、綠光及紅光通經該液晶材料之濾色器。 士申-月專利|&圍第17項之液晶顯示器，其中該第二光譜 於約440至460奈米、約550至57〇奈米及約630至680奈米 之波長區中具有高於可見光譜之至少另—區中的強度。 士申》月專利範圍第i 7項之液晶顯示器，其中該磷組合物 係包含（Sr〇79Eu〇.】Mn〇 lMg〇 ")2P2〇7、（Sr,Ca,Ba，Mg)10 (P〇4)6(F,Cl,Br5OH):Eu2+ ^ A3.5Mg〇·〇.5MgF2·Ge02:Mn4+ 〇 21 · 士申D月專利I巳圍第17項之液晶顯示器，其中該石舞組合物 係包含（Ca，Sr,Ba)8(Mg，Zn)(Si〇4)4(cl，F)2:Eu2+，Mn2+、 (Sr，Ca，Ba，Mg)10(p〇4)6(F，cl Br 〇H):Eu2+、及 3 5Mg〇 0.5MgF2.GeO2:Mn4+。 22·如申請專利範圍第17項之背光照明系統，其中該磷組合 物係分散於一實質透明樹脂中，以形成一混合物，該混 合物係形成一光轉換層，配置於該背光源與該LCD之一 液晶材料層之間。 23·如申#專利範圍弟22項之液晶顯示器，其中該實質透明 樹脂係包含至少一種選自由丙烯酸酯樹脂、環氧樹脂、 聚矽酮、及經聚矽酮-官能化之環氧樹脂所組成之群的 材料。 24.如申請專利範圍第22項之液晶顯示器，其中該混合物尚 87802-960216.doc 1282883 包含散光材料粒子。 25. 如申請專利範圍第17項之液晶顯示器，其中該背光源係 至少包含一 LED。 26. 如申請專利範圍第25項之液晶顯示器，其中該混合物係 配置於該LED之發光元件上。 27. 如申請專利範圍第17項之液晶顯示器，其中該背光源係 至少包括一 OELD。 28. 如申請專利範圍第27項之液晶顯示器，其中該OELD係 包括配置於兩電極之間的有機發光層，而該有機發光層 係於該電極兩端施加電壓時發射光線。 87802-960216.doc
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JP2004168996A (ja) 2004-06-17
EP1403355A1 (en) 2004-03-31
TW200420975A (en) 2004-10-16
CN1495486A (zh) 2004-05-12
CN100426072C (zh) 2008-10-15
US6809781B2 (en) 2004-10-26
US20040056990A1 (en) 2004-03-25

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