200809322 九、發明說麟 【發明所屬之技術領域】 本每明疋有關於一種發光二極體陣列，且特別是有關於 一種發光二極體陣列及其在背光模組與液晶顯示裝置上之應 用。 【先前技術】 現行之液晶顯示器之背光模組，大都係採用冷陰極管 (CCFq來作為光源。由於冷陰極管具有已成熟發展以及價格 便：等優點，而廣為市場中所採用。然而，冷陰極管卻存在 有演色性(Color Rendering)不佳、需高壓驅動、含汞㈣而不 利於環保、發光頻譜含紫外光（uv)波段、啟動速度慢、燈管 易碎裂、以及色度控制不易等問題。因此，新光源之開發已 成為新一代液晶顯示器之發展中相當重要的課題之一。 近十年來，由於發光二極體之發光效率有著突破性的進 V再加上·光一極體具有高演色性、低驅動電壓、盔汞、 ^頻譜不含紫外光波段、快速點燈啟動、固㈣U易碎 :以及可動態調控色度等優勢’因而已被視為 的較佳選擇之一。 π代九源 —曰發光二極體晶粒之製作係採蟲晶製程，因而在同 曰曰圓上所製作出之於弁- χ 一極體日日粒無法全部控制在一致的 特性，例如亮度或波長等均 k Μ 靶會有所差異。因此，發夯二 極體晶粒製造商在磊晶完成备 極體晶粒區分出來，也就…不同光學規格之發光二 求也就疋俗稱的區分規格範圍（bin)，然後 200809322 再依客戶需求將適合之規格範圍的發光二極體晶粒提供給客 戶。因此，發光二極體之單價跟購買之規格範圍的數量有著 很大之關聯。若需求規格寬鬆，涵蓋較大之規格範圍，價格 就會相對便宜；然而若需求規格僅涵蓋獨特小規格範圍之發 光二極體晶粒，例如特定亮度或波長，其價格將非常昂貴。 此外’一旦此特定小規格範圍之發光二極體的需求量擴大 時，更必須以龐大之產能來因應，因此不僅有成本轉嫁的問 題，更不具量產性。 目前之發光二極體背光模組100通常選用小規格範圍之 發光二極體晶粒102，例如某特定亮度（±5%)或特定波長 2·5nm)等。然而’這樣的發光二極體背光模組1〇〇中，一旦摻 f規袼範圍外之發光二極體晶粒1〇4,則極易產生亮暗區塊^ 疋色形不均的現象’如帛1圖所示。但是，選用小規格範圍 的發光二極體背光模組設計會使發光二極體光源之成本難以 下降’而不具量產性。 有鑑於此，產品設計若能應用到晶圓上較大之規格範圍 的發光二極體晶粒，對於成本效益相當有利。 【發明内容】 本I明之目的就是在提供一種發光二極體陣列， •丨有不同之區域，且不同規格範圍之發光二極體晶粒設於 :同區域中。如此-來’可大大地提高同一批晶圓上之發光 -一極體晶粒的使用率。 本發明之另-目的是在提供一種背光模組，具有發光二 6 200809322 極體陣列：¾源’且此發光二極體陣列依視覺㈣比重與產品 規格而劃分出至少二區，而分別設置不同規格範圍之發光二 極體a日粒。因此’可採用同批晶圓上較廣範圍之規格範圍， 故不僅極具量產性，更可有效降低成本。 本發明之又一目的是在提供一種液晶顯示裝置，其背光 模組之發光二極體陣列光源量產性佳，且成本相對低廉，因 此本發明之液晶顯示裝置具有相當大之經濟效益。 根據本發明之上述目的，提出一種發光二極體陣列，至 少劃分有一第一區域以及一第二區域。此發光二極體陣列至 少包括：複數個第一發光二極體晶粒，設於上述之第一區域 中，其中這些第一發光二極體晶粒屬於第一規格範圍；以及 複數個第二發光二極體晶粒，設於第二區域中，其中這些第 二發光二極體晶粒屬於第二規格範圍，且上述之第一規格範 圍與第二規格範圍之光學規格不同。 依照本發明一較佳實施例，第一區域位於發光二極體陣 列之中央區，第二區域位在第一區域外，而位於發光二極體 陣列之外側區。此外，第一規格範圍與第二規格範圍係以發 光二極體晶粒之發光波長及/或亮度來作為區別。 前述之發光二極體陣列可應用在背光模組中，來作為背 光模組之光源，而此背光模組可進一步應用在液晶顯示裝置 中。 因此，根據本發明之另一目的，另外提供了一種背光模 組，至少包括背板、由上述之發光二極體陣列所組成之光源 以及光學薄膜組。#中，發光二極體陣列光源設於背板上， 7 200809322 且光學薄膜組設於發光二極體陣列光源之上。 根據本發明又一目的，更提供了一種液晶顯示裝置，至 〉、包括上述之背光模組、以及一液晶顯示面板設於此背光模 組之上。 ，' 藉由依視覺影響比重與產品規格，將發光二極體陣列光 源分成數區，再於這些區中分別設置不同規格範圍之發光二 極體晶粒的方式，可大幅提高同批晶圓上之發光二極體之採 用率。因此，不僅有利於量產，更可有效降低生產成本。 【實施方式】 曰本發明揭露一種發光二極體陣列以及其在背光模組與液 曰曰顯示裝置上之應用。由於本發光二極體陣列可採用較寬規 格fe圍之發光二極體晶粒，因此不僅可有效降低成本，更極 具量產性。為了使本發明之敘述更加詳盡與完備，可參照下 列描述並配合第2圖至第6圖之圖示。 有鑒於液晶顯示畫面對於發光二極體晶粒之光學特性具 有一定之敏感度，若將規格範圍差異過大之發光二極體晶粒 排列在-起’易造成畫面之亮度或色度不均’但若使模組中 之發光二極體晶粒均限定在某特定規格範圍内，所對應之成 本將非常高，亦不具量產性。因此，本發明提供—種ς光二 極體陣列設計，來改善傳統發光二極體背光模組發 : 之瓶頸。 ^ 請參照第2圖，其繪示依照本發明一較佳實施例 發光二極體背光模組之上視示意圖。f光模組主要包括 8 200809322 背板204、發光二極體陣列202所構成之光源、以及光學薄膜 組（未繪示），其中發光二極體陣列202設於背板204上，光學 薄膜組則設於發光二極體陣列202之上方。背光模組200可 適用於液晶顯示裝置。為清楚說明發光二極體陣列2 0 2之設 _ 計，在第2圖中並未繪示出設於發光二極體陣列202之上的 • 光學薄膜組，但可參照第6圖之光學薄膜組220。一般而言， 光學薄膜組可包括擴散板與增亮膜等光學膜片。 在本實施例中，將發光二極體陣列202從中心往外依序 • 劃分出數個區域206、208與210，如第2圖所示。在本發明 中’區域208圍繞在區域206外，而區域210則圍繞在區域 208外。位於發光二極體陣列202中央區之區域206為人眼視 覺隶敏銳亦是產品規格定義最重要之區域，越往外圍之區域 208與210的視覺影響比重即隨之遞減。因此，在兼顧視覺品 味與產品規格下’將原先特定規格範圍之發光二極體晶粒2 i 2 從全面使用在整個陣列中縮小至僅使用在中心區之區域 206。另一方面，位於區域206外圍之區域2〇8則設置規袼範 0圍鄰近於區域206中發光二極體晶粒212的另一規格範圍發 • 光一極體晶粒214 ;而位於區域208外圍之區域2 10則設置規 格範圍鄰近於區域208中發光二極體晶粒214的另一規格範 圍發光二極體晶粒216。也就是說，在發光二極體陣列2〇2中， 不同之區域206、208與210分別設置不同規格範圍之發光二 極體晶粒。在本發明中，發光二極體晶粒之規格範圍的區分 可依舨發光一極體晶粒之發光波長、亮度、或者發光波長與 亮度兩者。在本發明之一實施例中，發光二極體晶粒之規格 9 200809322 範圍係以發光波長來區分，且一個規格範圍内發光二極體晶 粒間之發光波長的差異係在土 2.5 nm以内。在本發明之另—〒 施例中，發光二極體晶粒之規格範圍係以亮度來區分，且一 個規格範圍内發光二極體晶粒之間的亮度差異係在±5〇/〇以内。 在本發明之一實施例中，區域206、208與210之形狀均 貝貝對稱於發光二極體陣列2 0 2之水平中心轴以及垂直中心 轴。除了此實施例所示之矩形區域，本發明之發光二極體陣 列所劃分出的區域亦可具有其他形狀。舉例而言，如第4圖 所不’發光二極體陣列400中位於中心區的區域4〇6為橢圓 形，圍繞在區域406外之區域408與區域406之組合也呈橢 圓形，而圍繞在區域408外之區域41〇的外緣則呈矩形且内 緣王擴圓形。 在本發明中’位於發光二極體陣列2〇2中心區的區域2〇6 之寬度W!較佳是佔發光二極體陣列2〇2之整體寬度w之1/2 以上’且區域206之長度Ll較佳是佔發光二極體陣列2〇2之 =體寬度L之1/2以上。舉例而言，若依等面積的方式來將發 光極體陣列202劃分成區域206、208與210，此時位於發 光一極體陣列202最外圍之等面積區域2丨〇之左右寬度W3各 佔整體寬度W的1/10不到，而等面積之中央的區域2〇6的寬 度Wi卻佔了整體寬度貿的1/2以上，對視覺的影響最大。因 “對視兔影響較小之外圍區域，例如區域2〇8與210，玎不 而=用特定規格範圍之發光二極體晶粒。在此實施例中，$ 僅而在中央之區域2〇6上設置亮度或波長最符合需求之特定 規袼的發光二極體晶粒212，而在外圍之區域設置次於區 10 200809322 域206之規格範圍的發光二極體晶粒214，再於區域210設置 次於區域208之規格範圍的發光二極體晶粒21 6。藉由這樣的 設計原則’在發光二極體陣列202中，可使三分之二之發光 二極體晶粒以鄰近之規格範圍的產品來取代。 雖然外侧之區域208與210與中央之區域206可能會因 * 採用了不同規格範圍之發光二極體晶粒212、214與216，而 存在發光亮度或色度上的差異。然而，由於同一區域中所採 用之發光二極體晶粒的規格相當一致，再加上人眼對發光二 馨極體陣列202外圍區域的視覺敏感度較低而不易察覺其中些 微變化的差異。因此，可在視覺品味無虞的前提下，使用更 多規格範圍之發光二極體晶粒。故，可有效降低生產成本， 並有利於背光模組元件之量產。 因此，本發明之一特徵就是依視覺影響比重與產品規 格’將背光模組之發光二極體陣列光源劃分成至少二區域， 再將不同光學規格範圍之發光二極體晶粒分別排列在不同區 域中。如此一來，可在兼顧視覺品味與產品規格下，擴大同 _批晶圓上發光二極體晶粒之使用率，進而降低成本。 . 在本發明之一實施例中，可將一種背光模組全區域限制 在亮度52.5 lm至47.5 lm之規格範圍的傳統設計，變更為僅 於中央之區域206設置此亮度範圍之規格範圍的發光二極體 晶粒。而在區域206之外側區域208中，改設置次一規格範 圍之亮度介於47.5 lm至43.5 1m的發光二極體晶粒。接著， 在最外側之區域210中，設置更次一規格範圍之亮度介於43.5 lm至40 lm的發光一極體晶粒。在此實施例的發光二極體陣 200809322 列202中，最外側之區域210的亮度約為中央區域206之亮 度的84%，仍遠優於現行背光模組整體均齊度需大於75%之 視覺品味規格。在此設計下，本實施例可將採用之亮度規格 範圍從傳統之52·5 lm〜47·5 lm擴展到52.5 lm〜40 1m，因此可 大幅提咼同批晶圓之發光二極體晶粒的使用率，進一步有效 降低生產成本。 本發明亦可針對光學規格中之波長規格範圍來設計發光 二極體陣列之排列。以綠光發光二極體排列設計為例，可將 原先月光模組全區域限制在波長5 3 0±2 · 5 nm之規格範圍的傳 統設計’變更為僅於中央之區域206設置此波長規格範圍之 發光二極體晶粒。接著，在區域206之外侧區域208中，改 没置次專之波長規格範圍為525±2.5 nm的發光二極體晶粒。 最後，在最外側之區域210中，設置更次一等之波長規格範 圍為520±2·5 nm的發光二極體晶粒。在陣列設計下，本實施 例可將採用之綠光波長規格範圍從傳統之530±2·5 nm擴展到 5 3 0±2·5ιπη〜520±2·5ιιπι。 本發明更可利用模糊化排列的方式，來緩和不同區域間 因所使用之發光二極體晶粒的規格範圍不同所造成之差異。 請參照第3圖，背光模組300至少包括背板3〇4、發光二極體 陣列302所構成之光源、以及光學薄膜組（未繪示"其中發光 一極體陣列302設於背板304之上，光學薄膜組則設於發光 二極體陣列302之上方。在本實施例中，發光二極體陣列3〇2 同樣由中央向外侧劃分成三區域306、308與310。並在兼顧 視覺品味與產品規格下，將原先特定規格範圍之發光二極體 12 200809322 晶粒3 12設置在中央區之區域306 ;將規格範圍鄰近於發光二 極體晶粒3 12的另一範圍發光二極體晶粒3 14設置於區域 308 ;接著，將規格範圍鄰近於發光二極體晶粒314的另一範 圍發光二極體晶粒3 1 6設置於區域3 10中。 在本實施例中，在介於兩相鄰區域306與308、以及兩相 鄰區域308與310之間的交界區域318與320中，以模糊化 馬賽克排列方式，交錯排列兩區域306與308、或308與310 中不同規格範圍之發光二極體晶粒。亦即，在交界區域3 i 8 中，交叉排列發光二極體晶粒312與314，而在交界區域320 中交叉排列發光二極體晶粒3 14與3 1 6，如第3圖所示。如此 一來，可使整個發光二極體陣列302之亮度及/或色度的變化 更為平順，而在視覺上更不易察覺區域間之變化。 明參fi?、弟5圖’其繪示依照本發明另一較佳實施例的一 種發光二極體背光模組之上視示意圖。背光模組500係一種 側邊入光式背光模組，此背光模組500主要包括背板504、發 光二極體陣列502所構成之光源、以及導光板506，其中導光 板506具有設置在背板504之上之一底面以及鄰接該底面之 一入光面，發光二極體陣列5〇2則鄰設於導光板5〇6之該入 光面，且發光二極體陣列502係介於背板504與導光板5〇6 之間此外，更可依據產品實際需求，選擇性地設置光學薄 膜組（未繪示）於導光板506上，以增進背光模組5〇〇之光學效 能。本發明之背光模組500可適用於液晶顯示裝置。一般而 吕，光學薄膜組可包括擴散板與增亮膜等光學膜片。 在本實施例中，將位於背板5〇4每一侧之發光二極體陣 13 200809322 列502從中心往二端依序劃分出數個區域508、510與512。 在本實施例中，區域508位於背板504侧邊之中央，二實質 均等之區域5 10則分別位於區域508之二旁，而二實質均等 之區域5 12則分別位於二區域5〗〇之外側，如第$圖所示。 位於發光二極體陣列5〇2之中央區域5〇8的發光二極體晶粒 520對應朝背光模組5⑽之中央區域514發光，位於發光二極 體陣列5 0 2之中央區域5 〇 8二旁之區域5 10中的發光二極體 晶粒522對應朝背光模組5〇〇之中央區域514二旁之區域516 膠發光，而位於發光二極體陣列5〇2之區域510之外侧區域512 中的發光二極體晶粒524則對應朝背光模組500之區域516 外側的區域5 18發光。位於背光模組5〇()中央區之區域$ J 4 為人眼視覺最敏銳亦是產品規格定義最重要之區域，越往外 圍之區域516與518的視覺影響比重即隨之遞減。對視覺影 響杈小之外圍區域，例如區域5丨6與5丨8，可不需使用特定規 格範圍之發光二極體晶粒。因此，在兼顧視覺品味與產品規 格下’將原先特定規格範圍之發光二極體晶粒5 2〇從全面使 藝用在整個陣列中縮小至僅使用在背光模組5〇〇 一侧之中央區 粒 域508 p另一方面，位於每一侧之區域508二旁之區域510則 設置規格範圍鄰近於區域508中發光二極體晶粒52〇的另一 規栳範圍發光一極體晶粒5 2 2 ;而位於區域5 10外側之區域 512則設置規格範圍鄰近於區域51〇中發光二極體晶粒522的 另一規格範圍發光二極體晶粒524。也就是說，在發光二極體 陣列502中，不同之區域508、510與512分別設置不同規格 摩巳圍之發光二極體晶粒。在本發明中，發光二極體晶粒之規 14 200809322 格範圍的區分可依照發光二極體晶粒之發光波長、亮度、或 者發光波長與焭度兩者。舉例而言，在此實施例中，可僅需 在中央之區域508上設置亮度或波長最符合需求之特定規格 的發光二極體晶粒520，而在外圍之區域5 1 〇設置次於區域 508之規格範圍的發光一極體晶粒522，再於區域512設置次 於區域510之規格範圍的發光二極體晶粒524。藉由這樣的設 計原則，在發光二極體陣列502中，可使約三分之二之發光 二極體晶粒以鄰近之規格範圍的產品來取代。 由於同一區域中所採用之發光二極體晶粒的規格相當一 致，再加上人眼對發光二極體陣列5〇2外圍區域的視覺敏感 度較低而不易察覺其中些微變化的差異。因此，可在視覺品 味無虞的鈿提下，使用更多規格範圍之發光二極體晶粒。故， 可有效降低生產成本，並有利於背光模組元件之量產。在本 發明之一實施例中，區域508、510與512均實質對稱於發光 二極體陣列502之垂直中心軸。 本發明之背光模組可應用於各式資訊及通訊等消費產品 上。例如，可在背光模組上組設一液晶顯示面板，即可構成 液晶顯示裝置。舉例而言，請參照第6圖，其係繪示依照本 發明一較佳實施例的一種液晶顯示器之裝置示意圖。在背光 模組200之光學薄膜組22〇上組設一液晶顯示面板218，即構 成液晶顯示裝置222。 由上述本發明較佳實施例可知，本發明之一優點就是因 為本發光二極體陣列依視覺影響與產品規格而規劃有不同之 區域，且不同規格範圍之發光二極體晶粒分別設於不同區域 15 200809322 中。因此，在建構發光二極體陣列以供應用時，可大大地提 高同一批晶圓上之發光二極體晶粒的使用率。 由上述本發明較佳實施例可知，本發明之另一優點就是 因為本發明之背光模組具有發光二極體陣列光源，且此發光 二極體陣列依視覺影響比重與產品規格而劃分出至少二區， 而分別設置不同規格範圍之發光二極體晶粒。因此，可採用 同批晶圓上較廣範圍之規袼範圍，故不僅極具量產性，^可 有效降低成本。 由上述本發明較佳實施例可知，本發明之又一優點就是 因為本發明之液晶顯示裝置中所設置之背光模組，其發光二 極體陣列光源量產性佳，且成本相對低廉，因此本發；之= 晶顯示裝置具有相當大之經濟效益。 雖然本發明已以一較佳實施例揭露如上，然#並非用以 =定本發明，任何熟習此技藝者，在不脫離本發明之精神和 I巳圍内田可作各種之更動與潤錦，因此本發明之保護範圍 ί視後附之申请專利範圍所界定者為準。 【圖式簡單說明】 2 1圖係繪示一般發光二極體背光模組之上視示意圖。 第2圖係緣示依照本發明一較佳實施例的一種發光二極 體背光模組之上視示意圖。 第3圖係繪不依照本發明另一較佳實施例的一種發光二 極體背光模組之上視示意圖。 第4圖係繪不依照本發明又一較佳實施例的一種發光二 16 200809322 極體背光模組之上視不意圖。 第5圖係繪示依照本發明再一較佳實施例的一種發光二 極體背光模組之上視示意圖。 第6圖係繪示依照本發明一較佳實施例的一種液晶顯示 器之裝置示意圖。 【主要元件符號說明】200809322 IX. Invention of the invention [Technical field of the invention] Each of the present invention relates to an array of light-emitting diodes, and more particularly to an array of light-emitting diodes and applications thereof in backlight modules and liquid crystal display devices . [Prior Art] Most of the current backlight modules for liquid crystal displays use cold cathode tubes (CCFq as a light source. Because of the mature development and price advantages of cold cathode tubes, they are widely used in the market. However, Cold cathode tubes have poor color rendering (high color rendering), high voltage drive, mercury (4), environmental protection, luminescence spectrum with ultraviolet (uv) band, slow start-up speed, easy chipping, and chromaticity. Therefore, the development of new light sources has become one of the most important topics in the development of new-generation liquid crystal displays. In the past ten years, due to the luminous efficiency of the light-emitting diodes, there has been a breakthrough in V and light. The polar body has high color rendering, low driving voltage, mercury in the helmet, ^ spectrum without ultraviolet light band, fast lighting start, solid (four) U fragile: and the ability to dynamically adjust the chromaticity' and thus has been regarded as a better choice. One of the π-generation Jiuyuan-曰 曰 二 晶粒 晶粒 晶粒 晶粒 采 采 采 采 采 采 采 采 采 采 采 采 采 晶 晶 晶 晶 晶 晶 晶 晶 晶 χ χ χ χ χ χ χ χ χ χ χ χ Consistent characteristics, such as brightness or wavelength, will vary depending on the target. Therefore, the hairpin diode die manufacturer distinguishes the parent crystal grains in the epitaxial crystal, that is, the light of different optical specifications. It is also known as the division of the specification range (bin), and then 200809322 to provide customers with the appropriate range of light-emitting diode die according to customer needs. Therefore, the unit price of the light-emitting diode and the number of specifications of the purchase range There is a lot of correlation. If the demand specification is loose and covers a larger range of specifications, the price will be relatively cheap; however, if the demand specification covers only a small range of light-emitting diodes, such as specific brightness or wavelength, the price It will be very expensive. In addition, once the demand for the light-emitting diodes in this specific small-scale range is expanded, it must be dealt with with a large capacity, so there is not only a problem of cost transfer, but also no mass production. The polar body backlight module 100 generally selects a small-sized light-emitting diode die 102, such as a certain brightness (±5%) or a specific wavelength of 2.5 nm). However, in such a light-emitting diode backlight module, once the light-emitting diode crystal grains 1〇4 are blended outside the f-regular range, it is easy to produce a bright and dark block. 'As shown in Figure 1. However, the design of a light-emitting diode backlight module with a small size range makes it difficult to reduce the cost of the light-emitting diode source, without mass production. In view of this, it is cost-effective to apply the product design to a larger range of light-emitting diode dies on the wafer. SUMMARY OF THE INVENTION The purpose of the present invention is to provide an array of light-emitting diodes, which have different regions, and different sizes of light-emitting diodes are disposed in the same region. This - can greatly improve the luminescence on the same batch of wafers - the use of one-pole crystal grains. Another object of the present invention is to provide a backlight module having a light-emitting diode 6 200809322 polar body array: 3⁄4 source' and the light-emitting diode array is divided into at least two regions according to the visual (four) specific gravity and product specifications, and respectively set Light-emitting diodes of different specifications range. Therefore, the wide range of specifications on the same batch of wafers can be used, so that it is not only highly mass-produced, but also can effectively reduce costs. Still another object of the present invention is to provide a liquid crystal display device in which the light-emitting diode array light source of the backlight module is excellent in mass productivity and relatively low in cost, and therefore the liquid crystal display device of the present invention has considerable economic benefits. In accordance with the above objects of the present invention, an array of light-emitting diodes is provided which is at least divided into a first region and a second region. The LED array includes at least a plurality of first LED dipoles disposed in the first region, wherein the first LED dipoles belong to a first specification range; and a plurality of second The illuminating diode dies are disposed in the second region, wherein the second illuminating diode dies are in the second specification range, and the first specification range is different from the optical specification in the second specification range. In accordance with a preferred embodiment of the present invention, the first region is located in a central region of the array of light emitting diodes, and the second region is located outside of the first region and is located outside the array of light emitting diodes. Further, the first specification range and the second specification range are distinguished by the emission wavelength and/or brightness of the light-emitting diode die. The foregoing LED array can be applied to a backlight module as a light source of the backlight module, and the backlight module can be further applied to a liquid crystal display device. Therefore, in accordance with another object of the present invention, there is further provided a backlight module comprising at least a back sheet, a light source composed of the above-described array of light emitting diodes, and an optical film group. #中, The light-emitting diode array light source is disposed on the back plate, 7 200809322 and the optical film set is disposed on the light-emitting diode array light source. According to still another object of the present invention, there is provided a liquid crystal display device, comprising: the backlight module comprising the above, and a liquid crystal display panel disposed on the backlight module. By dividing the light-emitting diode array light source into several regions according to the visual influence on the specific gravity and the product specifications, and separately setting the light-emitting diode crystal grains of different specifications in these regions, the wafers on the same batch can be greatly improved. The adoption rate of the light-emitting diode. Therefore, it not only facilitates mass production, but also effectively reduces production costs. [Embodiment] The present invention discloses an array of light-emitting diodes and their use in a backlight module and a liquid helium display device. Since the light-emitting diode array can adopt a light-emitting diode crystal grain with a wide gauge, it can effectively reduce the cost and is more mass-produced. In order to make the description of the present invention more detailed and complete, reference is made to the following description and in conjunction with the drawings of Figures 2 through 6. In view of the fact that the liquid crystal display screen has a certain sensitivity to the optical characteristics of the light-emitting diode die, if the size of the light-emitting diode is too large in the specification range, the brightness or chromaticity unevenness of the picture may be caused. However, if the LEDs in the module are limited to a certain specification range, the corresponding cost will be very high and mass production. Therefore, the present invention provides a dimming diode array design to improve the bottleneck of the conventional LED backlight module. Please refer to FIG. 2, which is a top view of a backlight module of a light-emitting diode according to a preferred embodiment of the present invention. The optical module mainly includes 8 200809322 backplane 204, a light source formed by the LED array 202, and an optical film group (not shown), wherein the LED array 202 is disposed on the backplane 204, and the optical film group It is disposed above the LED array 202. The backlight module 200 can be applied to a liquid crystal display device. In order to clearly illustrate the arrangement of the LED arrays, the optical film set provided on the LED array 202 is not shown in FIG. 2, but the opticals of FIG. 6 can be referred to. Film set 220. In general, the optical film set may include an optical film such as a diffusion plate and a brightness enhancement film. In the present embodiment, the LED array 202 is divided into a plurality of regions 206, 208 and 210 from the center to the outside, as shown in Fig. 2. In the present invention, the 'area 208 is surrounded by the area 206, and the area 210 is surrounded by the area 208. The area 206 located in the central area of the LED array 202 is the most important area for the definition of the human eye and the most important area for product specification definition. The proportion of the visual influence of the areas 208 and 210 to the periphery is decremented. Therefore, the light-emitting diode dies 2 i 2 of the original specific specification range are reduced from full use throughout the array to the area 206 used only in the central area, taking into account visual taste and product specifications. On the other hand, the region 2〇8 located at the periphery of the region 206 is provided with another size range of the light-emitting diode die 212 adjacent to the light-emitting diode die 212 in the region 206; The peripheral region 2 10 is provided with another range of illuminating diode dies 216 having a specification range adjacent to the illuminating diode die 214 in region 208. That is to say, in the light-emitting diode array 2〇2, different regions 206, 208 and 210 are respectively provided with light-emitting diode dies of different specifications. In the present invention, the specification range of the light-emitting diode crystal grains may depend on the light-emitting wavelength, the luminance, or the light-emitting wavelength and the luminance of the light-emitting diode. In an embodiment of the present invention, the specification of the LED dies 9 200809322 is distinguished by the illuminating wavelength, and the difference in the illuminating wavelength between the illuminating diode grains within a specification range is within 2.5 nm of the soil. . In another embodiment of the present invention, the specification range of the light-emitting diode die is distinguished by brightness, and the difference in brightness between the light-emitting diode grains within a specification range is within ±5〇/〇. . In one embodiment of the invention, the shapes of the regions 206, 208, and 210 are each symmetrical to the horizontal central axis and the vertical central axis of the LED array 220. In addition to the rectangular regions shown in this embodiment, the regions defined by the array of light-emitting diodes of the present invention may have other shapes. For example, as shown in FIG. 4, the region 4〇6 of the central portion of the LED array 400 is elliptical, and the combination of the region 408 and the region 406 surrounding the region 406 is also elliptical. The outer edge of the region 41〇 outside the region 408 is rectangular and the inner edge is rounded. In the present invention, the width W of the region 2〇6 located in the central region of the light-emitting diode array 2〇2 is preferably 1/2 or more of the overall width w of the light-emitting diode array 2〇2 and the region 206 The length L1 is preferably 1/2 or more of the body width L of the light-emitting diode array 2〇2. For example, if the emitter array 202 is divided into regions 206, 208, and 210 in an equal area manner, the width W3 of the equal-area region 2 at the outermost periphery of the array of the LED array 202 is occupied. The width W of the overall width W is less than 1/10, and the width Wi of the area 2〇6 in the center of the equal area accounts for 1/2 or more of the overall width trade, and has the greatest influence on the vision. Because of the peripheral areas that have less influence on the rabbit, such as the areas 2〇8 and 210, it is not possible to use the illuminating diode dies of a specific specification range. In this embodiment, only the central area 2发光6 is provided with a light-emitting diode die 212 having a brightness or wavelength that best meets the requirements of the specific specification, and a light-emitting diode die 214 having a specification range below the region 10 200809322 domain 206 is disposed in the peripheral region, and then The region 210 sets the light-emitting diode die 21 6 which is next to the specification range of the region 208. By the design principle 'in the light-emitting diode array 202, two-thirds of the light-emitting diode die can be made Replacement of products in the vicinity of the specification range. Although the outer regions 208 and 210 and the central region 206 may use different size ranges of the light-emitting diode chips 212, 214 and 216, there is luminance or chromaticity. The difference is the same. However, because the specifications of the LEDs used in the same region are quite consistent, and the human eye has low visual sensitivity to the peripheral region of the LED array 2, it is not easy to detect the slightest. Change difference Therefore, it is possible to use a light-emitting diode die of a larger specification range under the premise of visual taste, thereby effectively reducing the production cost and facilitating the mass production of the backlight module component. Therefore, one of the present inventions The feature is to divide the light-emitting diode array light source of the backlight module into at least two regions according to the visual influence specific gravity and the product specification, and then arrange the light-emitting diode crystal grains of different optical specifications in different regions. In the embodiment of the present invention, the backlight module can be used in a wide range of backlight modules. The conventional design limited to the specification range of brightness from 52.5 lm to 47.5 lm is changed to the light-emitting diode die in which the specification range of the luminance range is set only in the central region 206. In the outer region 208 of the region 206, the setting is changed. The brightness of the second specification range is from 47.5 lm to 43.5 1 m. Then, in the outermost region 210, the brightness of the next specification range is set. 43.5 lm to 40 lm of light-emitting one-pole crystal grains. In the light-emitting diode array 200809322 column 202 of this embodiment, the brightness of the outermost region 210 is about 84% of the brightness of the central region 206, which is still far superior to The overall uniformity of the current backlight module needs to be greater than 75% of the visual taste specification. Under this design, the brightness specification range of the present embodiment can be extended from the conventional 52·5 lm~47·5 lm to 52.5 lm~40. 1m, therefore, the utilization rate of the light-emitting diode crystal grains of the same batch of wafers can be greatly improved, and the production cost can be further effectively reduced. The present invention can also design the arrangement of the light-emitting diode arrays for the wavelength specification range in the optical specifications. Taking the green light-emitting diode arrangement as an example, the conventional design of the original moonlight module can be limited to the range of the wavelength range of 5 3 0 ± 2 · 5 nm, and the wavelength specification can be changed to only the central area 206. Range of light-emitting diode grains. Next, in the outer region 208 of the region 206, the light-emitting diode crystal grains having a wavelength range of 525 ± 2.5 nm are replaced. Finally, in the outermost region 210, a second-order light-emitting diode crystal having a wavelength specification of 520 ± 2.5 nm is set. Under the array design, the green light wavelength specification range can be extended from the conventional 530±2·5 nm to 5 3 0±2·5ιπη~520±2·5ιιπι. The present invention can also utilize the fuzzy arrangement to alleviate the difference between different regions due to the different specification ranges of the LEDs used. Referring to FIG. 3 , the backlight module 300 includes at least a backplane 3〇4, a light source formed by the LED array 302, and an optical film group (not shown), wherein the LED array 302 is disposed on the backplane. Above the 304, the optical film group is disposed above the LED array 302. In this embodiment, the LED array 3〇2 is also divided into three regions 306, 308 and 310 from the center to the outside. Taking into account the visual taste and product specifications, the light-emitting diode 12 200809322 die 3 12 of the original specific specification range is disposed in the central region 306; the specification range is adjacent to the other range of the light-emitting diode die 3 12 The diode die 3 14 is disposed in the region 308; then, another range of the light-emitting diode die 3 16 having a specification range adjacent to the LED die 314 is disposed in the region 3 10 . In the boundary regions 318 and 320 between the two adjacent regions 306 and 308 and the two adjacent regions 308 and 310, the two regions 306 and 308, or 308 and 310 are staggered in a fuzz mosaic arrangement. Light-emitting diodes of different specifications </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> As shown in the figure, the brightness and/or chromaticity of the entire LED array 302 can be changed more smoothly, and the change between the regions is less visually noticeable. A schematic diagram of a backlight of a light-emitting diode backlight module according to another preferred embodiment of the present invention is shown. The backlight module 500 is a side-lighting backlight module, and the backlight module 500 mainly includes a backplane. 504, a light source formed by the LED array 502, and a light guide plate 506, wherein the light guide plate 506 has a bottom surface disposed on the back plate 504 and a light incident surface adjacent to the bottom surface, and the LED array 5 2 is adjacent to the light incident surface of the light guide plate 5〇6, and the light emitting diode array 502 is interposed between the back plate 504 and the light guide plate 5〇6, and can be selectively set according to the actual needs of the product. An optical film group (not shown) is disposed on the light guide plate 506 to enhance the backlight module 5〇 The optical module of the present invention can be applied to a liquid crystal display device. Generally, the optical film group can include an optical film such as a diffusion plate and a brightness enhancement film. In this embodiment, it will be located on the back plate 5〇. 4 LED array 13 on each side 200809322 Column 502 sequentially divides several regions 508, 510 and 512 from the center to the two ends. In this embodiment, the region 508 is located at the center of the side of the backplane 504, The substantially equal areas 5 10 are located next to the area 508, and the two substantially equal areas 5 12 are located outside the two areas 5, as shown in the figure $. The LED 520 in the central region 5〇8 of the LED array 5〇2 corresponds to the central region 514 of the backlight module 5(10), and is located in the central region 5 of the LED array 520. The light-emitting diode 522 in the region 5 10 of the two sides corresponds to the region 516 which is adjacent to the central region 514 of the backlight module 5, and is located outside the region 510 of the LED array 5〇2. The LED 524 in the region 512 corresponds to the region 5 18 outside the region 516 of the backlight module 500. The area located in the central area of the backlight module 5〇() is the most sensitive area for human vision and the most important area for product specification definition. The proportion of the visual impact of the outer areas 516 and 518 is decreasing. For peripheral areas where the visual impact is small, such as areas 5丨6 and 5丨8, it is not necessary to use a specific size of the LED dies. Therefore, under the consideration of visual taste and product specifications, the LEDs of the original specific specification range are reduced from the entire array to the center of the backlight module 5 side. The grain domain 508p, on the other hand, the region 510 on the side of the region 508 on each side is provided with another gauge range of light-emitting diode grains having a specification range adjacent to the light-emitting diode grains 52A in the region 508. 5 2 2 ; and a region 512 outside the region 5 10 is provided with another size range of light-emitting diode dies 524 having a specification range adjacent to the light-emitting diode die 522 in the region 51. That is to say, in the LED array 502, different regions 508, 510 and 512 are respectively provided with light-emitting diode dies of different specifications. In the present invention, the range of the light-emitting diode grains 14 200809322 can be distinguished according to the light-emitting wavelength, brightness, or wavelength and intensity of the light-emitting diode. For example, in this embodiment, it is only necessary to provide a light-emitting diode die 520 having a brightness or a wavelength that best meets the specific specifications in the central region 508, and the peripheral region 5 1 〇 is set next to the region. The light-emitting one-pole die 522 of the specification range of 508 is further disposed in the region 512 with the light-emitting diode die 524 that is inferior to the specification range of the region 510. With such a design principle, in the light-emitting diode array 502, about two-thirds of the light-emitting diode dies can be replaced by products in the vicinity of the specification range. Since the specifications of the illuminating diode dies used in the same region are quite uniform, and the visual sensitivity of the human eye to the peripheral region of the illuminating diode array 5 〇 2 is low, the difference in slight variations is not easily perceived. Therefore, it is possible to use a wider range of light-emitting diode dies in a visually pleasing manner. Therefore, the production cost can be effectively reduced, and the mass production of the backlight module components is facilitated. In one embodiment of the invention, regions 508, 510, and 512 are each substantially symmetrical about the vertical central axis of light emitting diode array 502. The backlight module of the present invention can be applied to various consumer products such as information and communication. For example, a liquid crystal display panel can be formed by arranging a liquid crystal display panel on the backlight module. For example, please refer to FIG. 6 , which is a schematic diagram of a device of a liquid crystal display according to a preferred embodiment of the present invention. A liquid crystal display panel 218 is disposed on the optical film group 22 of the backlight module 200, that is, the liquid crystal display device 222 is formed. According to the preferred embodiment of the present invention, one of the advantages of the present invention is that the LED array has different regions according to visual influences and product specifications, and the LEDs of different specifications are respectively disposed on the LED array. Different areas 15 200809322. Therefore, when a light-emitting diode array is constructed for supply, the use rate of the light-emitting diode crystal grains on the same batch of wafers can be greatly improved. According to the preferred embodiment of the present invention, another advantage of the present invention is that the backlight module of the present invention has a light-emitting diode array light source, and the light-emitting diode array is divided according to visual influence specific gravity and product specifications. In the second zone, the illuminating diode dies of different specifications are respectively set. Therefore, a wide range of specifications on the same batch of wafers can be used, so that it is not only highly mass-produced, but also can effectively reduce costs. According to the preferred embodiment of the present invention, another advantage of the present invention is that the backlight module provided in the liquid crystal display device of the present invention has good mass production and relatively low cost, and the cost is relatively low. The present invention; the crystal display device has considerable economic benefits. Although the present invention has been described above with reference to a preferred embodiment, the present invention is not intended to be used in the present invention, and any skilled person skilled in the art can make various changes and slicks without departing from the spirit of the present invention. The scope of the present invention is defined by the scope of the appended claims. [Simple diagram of the diagram] 2 1 diagram shows the top view of the general LED backlight module. FIG. 2 is a top view showing a backlight module of a light-emitting diode according to a preferred embodiment of the present invention. 3 is a top plan view of a light-emitting diode backlight module according to another preferred embodiment of the present invention. FIG. 4 is a view showing a light-emitting diode 16 not in accordance with still another preferred embodiment of the present invention. FIG. 5 is a top plan view of a backlight module of a light emitting diode according to still another preferred embodiment of the present invention. Figure 6 is a schematic view of a liquid crystal display device in accordance with a preferred embodiment of the present invention. [Main component symbol description]
104 :發光二極體晶粒 202 :發光二極體陣列 206 :區域 210 :區域 214 :發光二極體晶粒 21 8 :液晶顯示面板 222·液晶顯不裝置 302 :發光二極體陣列 306 :區域 310 :區域 314 :發光二極體晶粒 3 1 8 :交界區域 400 :背光模組 404 ·背板 408 :區域 500 :背光模組 1〇〇 :發光二極體背光模組 102 :發光二極體晶粒 200 :背光模組 204 :背板 208 :區域 212 :發光二極體晶粒 216 :發光二極體晶粒 220 :光學薄膜組 300 :背光模組 304 :背板 308 :區域 312 :發光二極體晶粒 316 :發光二極體晶粒 320 :交界區域 402 :發光二極體陣列 406 :區域 410 :區域 17 200809322 502 :發光二極體陣列 504 :背板 506 :導光板 508 :區域 510 :區域 512 :區域 514 :區域 5 1 6 :區域 518 :區域 520 :發光二極體晶粒 522 :發光二極體晶粒 524 :發光二極體晶粒 18104: light-emitting diode die 202: light-emitting diode array 206: region 210: region 214: light-emitting diode die 21 8 : liquid crystal display panel 222 · liquid crystal display device 302: light-emitting diode array 306: Area 310: Area 314: Light-emitting diode die 3 1 8 : Junction area 400: Backlight module 404 · Back plate 408: Area 500: Backlight module 1〇〇: Light-emitting diode backlight module 102: Light-emitting two Polar body die 200: backlight module 204: back plate 208: region 212: light emitting diode die 216: light emitting diode die 220: optical film set 300: backlight module 304: back plate 308: region 312 : Light-emitting diode die 316 : Light-emitting diode die 320 : Junction region 402 : Light-emitting diode array 406 : Region 410 : Region 17 200809322 502 : Light-emitting diode array 504 : Back plate 506 : Light guide plate 508 : region 510 : region 512 : region 514 : region 5 1 6 : region 518 : region 520 : light emitting diode die 522 : light emitting diode die 524 : light emitting diode die 18