200903090 九、發明說明： •【發明所屬之技術領域】 * 本發明係關於一種液晶顯示裝置及其驅動方法。 【先前技術】 液BB #員示裝置因其具有重量輕、體積小及耗電少等優 點，廣泛應用於電視、筆記本、電腦、行動電話、個人數 位助理等現代化資訊設備。惟，液晶係具有黏滯性之物質， 因而液晶顯示裝置之響應時間一般較長，且由於通常液晶 顯示裝置係採用穩態（Hold Type)之驅動方式，因此當其用 於動態顯示時，容易因為反應速度不足而造成拖影現象， 影響動態影像品質。 種用於解決液晶顯示裝置動態顯示時拖影現象之方 法稱為掃彳田插黑技術（Scanning b/l)，其係順序開啓或關閉 4言使液晶面板呈現強光區和弱光區交替變化，由此減 少液晶顯示裝置之響應時間，提高其在動態晝面顯示時之 顯示效果。 睛麥閱圖1，其係一種先前技術液晶顯示裝置之立體 分解示意圖。該液晶顯示裝置100包括一液晶顯示面板1〇 及一背光模組（圖未示），該液晶面板10與該背光模組層疊 設置。該背光模組包括複數光源13。該光源13為冷陰極 螢光燈管。 7 = 請一併參閱圖2，其係圖1所示液晶顯示裝置之驅動 電路不意圖。該液晶面板1〇包括一掃描驅動器14、—次 6 200903090 料驅動器16、一日车床伙也丨„„ m ^ 可序拴制益18、複數相互平行之掃扣妗 G1〜Gn、複數相互平行 輙彳田線 1πς 、—如w 仃貝枓線C1〜Cm、设數書辛帝托 105、稷數溥膜電晶髀 .^ ^ —果兒極 、电日日版107及一公共電極1〇9。該 ΪΓ:Τ:該複數資料線C1〜cm交叉設置並界定複：: 素單兀108，該書夸兩士灸致旦 乂旦素迅極105以矩陣結構排佈於 描線G1〜Gii與該葙齡次社括广 τα。亥设數掃 \ 枓線C1〜Cm所界定之書素單开 108内’该公共電極1〇9與該晝素電極105相對‘置早兀 該背光模组U包括一逆變器15及一光源組 7 源組17包括該複數光源13。 邊先 該時序控制器18分別與該掃描驅動器14 動器16及該逆變琴]$、鱼槌、，、 邊貝抖驅 、欠窃15連接，亚分別提供第—、 16 Μ、…。 咖田驅動器14、該資料驅動哭 = …15 ;該掃描驅動器14驅動該複數掃“ Θ1〜Θη，該貧料酿說π ^ ▼描線 、’、動态16驅動該複數資料線C1〜Cm，# 逆變器15驅動該葙卷土、β 11亥 六 一數先/原13，位於該掃描線與該資料線 又又處之母一溥膜電晶俨 、艮 _ 篮1U7之閘極連接至—掃描绩，盔 一溥膜電晶體1〇7之调朽s 、 綠母 之源極連接至—資料線，每一薄膜+曰 體107之沒極連接至—晝素電極1Q5。 物电曰曰200903090 IX. Description of the invention: • Technical field to which the invention pertains * The present invention relates to a liquid crystal display device and a method of driving the same. [Prior Art] The liquid BB #member device is widely used in modern information equipment such as televisions, notebooks, computers, mobile phones, and personal digital assistants because of its advantages of light weight, small size, and low power consumption. However, since the liquid crystal system has a viscous substance, the response time of the liquid crystal display device is generally long, and since the liquid crystal display device is generally driven by a Hold type, it is easy to use for dynamic display. The smear phenomenon is caused by insufficient reaction speed, which affects the dynamic image quality. The method for solving the smear phenomenon in the dynamic display of the liquid crystal display device is called Scanning b/l, which is sequentially turned on or off, so that the liquid crystal panel alternates between a strong light region and a weak light region. The change thereby reduces the response time of the liquid crystal display device and improves the display effect when the dynamic face is displayed. Fig. 1, which is a perspective exploded view of a prior art liquid crystal display device. The liquid crystal display device 100 includes a liquid crystal display panel 1 and a backlight module (not shown). The liquid crystal panel 10 is laminated with the backlight module. The backlight module includes a plurality of light sources 13. The light source 13 is a cold cathode fluorescent tube. 7 = Please refer to FIG. 2 together, which is not intended to drive the driving circuit of the liquid crystal display device shown in FIG. 1. The liquid crystal panel 1 includes a scan driver 14, a time 6 200903090 material driver 16, a day lathe 丨 „„ m ^ an orderly 益 18, a plurality of parallel sweeps 妗 G1 ～ Gn, plural parallel Putian line 1πς, - such as w 仃 枓 枓 line C1 ~ Cm, set number of books Xindi Tuo 105, 溥 溥 电 电 ^ ^ ^ ^ ^ ^ ^ ^ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 〇9. The ΪΓ: Τ: The complex data line C1~cm is cross-arranged and defines a complex:: 素单兀108, the book is boasted by two moxibustions, and the 迅 素 迅 迅 105 105 105 is arranged in a matrix structure on the line G1~Gii and The age of the second society is wide τα. The backlight module U includes an inverter 15 and a predetermined number of scans in the single-opening 108 defined by the C line C1 to Cm. The common electrode 1 〇 9 is opposite to the halogen electrode 105. Light source group 7 The source group 17 includes the complex light source 13. The timing controller 18 is respectively connected to the scan driver 14 and the inverter, the fish 槌, the 边, the 边 抖 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The coffee field driver 14, the data drive crying = ... 15; the scan driver 14 drives the complex sweep "Θ1~Θη, the poor material is π ^ ▼ trace, ', dynamic 16 drives the complex data line C1~Cm, # inverter 15 drives the 葙 土 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , To - scan performance, helmet 溥 电 电 电 电 、 、 、 、 、 、 、 、 、 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,曰曰
當該液晶顯示货蓄彳I 蠻哭Η蜓龢丁 、置0作恰，該複數光源13在該逆 交15驅動下順序開啟忐關門 B t Ί啟或關閉。當某一光源開啟時，哕该 日日面板10的相應區域為 … ιη〇,.% . ^ , 坺為強先S 110，其他區域為弱光區 113 π亥強先G 11 〇料庙—去i_ 3 / +應一疋數置的掃描線。此時一定數暑 的知描線依序加載右槁 > 切咕 ^ 疋数里 資料訊號。載有^減’該複數㈣線相應加載有 200903090 二。=以掃描線G2為例描述，當該掃描線G2加載有掃描 Λ唬％•，連接於該掃描線G2之複數薄膜電晶體仞7均产 於開啟狀⑮，㉛，連接於該掃描線G2之複數薄膜電晶體 1—07 =汲極與源極導通，該複數資料訊號分別藉由導 複數涛腰電晶體1 q 7力fe +。j 士 綠複數晝素電極105，且該掃描 )。光區110’該複數晝素單元108實現圖像顯示。 °亥逆艾& 13關閉該光源13 '然後開啓另一光源13，該 :曰曰面板10相應有另一區域為強光區，其他區域為 :該=示裝置1〇〇的驅動過程與上述驅動過程大致 4連=不斷重復進行，從而使該液晶顯示裝置 貝現連績顯示圖像。 4且 線所Ξ應顯示裝置100工作時，該-定數量的掃描 的邊界；明：曰面才反10上強光區u〇和其他弱光區113 其照亮的區域為A，J '先源LA開啓時’ §先源開啓時，其照亮的區域為 域Α與區域戸弓 線所對Β ®，因㈣—定數量的掃描 的邊界不明顯，該液曰顧二0和其他弱光區113 全被解決。、人日日.、，、、不凌置100的拖影現象並沒有完 【發明内容】 有4"於此，提供一種能較好解決g 液晶顯示裝置實為必需。 H頁不晝面拖影現象 同時有必要提供—種該曰一 徑通履日日顯不裝置的驅動方法。 200903090 -種液晶顯示裂置，其包括一背光模 包括至少二導光板。兮p I ... , Μ月先杈組 4至少二導光板層疊設置， 板包括一底面及一出母‘光 5玄底面共3亥出光面相 少二導光板整體被劃分為至少二區域，每一區该至 光板的底面及對應之以面設置有微結構，且同 沒置有微結構的區域彼此間隔。 ¥先板 一種液晶顯示裝晉柩#七、+ _ m ^ 顯示裝置包括一背光模％β Β 切乃忐的液晶 、广…场田 坡、且及-液晶面板，該背光模組與該 液曰曰面板層豐設置。該背光模組包括一逆變器、至小 光板及至少二光源，該至少二導光板層疊設置。每二先 板包括一底面、一屮丨、 , &囬 出先面及至少一入光面，該底面與該出 光面相對’該入光面與該出光面及該底面相接，鄰近每一 入光面處均設置H該至少二導光板整體被劃分為至 =二區域，每一區域僅有一導光板的底面及對應之出光面 設置有微結構，且同—導光板^置有微結構的區域彼此間 ^該液晶面板包括—掃描驅動器、—時序控制器及複數 掃描線，該液晶面板也對應被劃分為至少二區域。該驅動 方法包括以下步驟：a.該時序控制器提供一控制訊號控制 該掃描驅動器產生一掃描訊號，該掃描訊號依次施加至該 複數掃描線上；b.該時序控制器提供一背光控制訊號控制 該迚變器開啓一光源，每一導光板僅有一區域為強光區， 該液晶面板也相應僅有一區域為強光區，在該光源開啓時 間内’该掃描訊號依次施加至該強光區所對應的掃描線 上’ C.該背光控制訊號控制該逆變器關閉該光源並開啓另 200903090 ^ 每‘光板僅有另一區域為強光區，哕、夜a面板 也相應僅有另—㈣^丄r 巧强尤匕4液曰曰面板 區或為強光區，在該光源開啓時間内，該 二Λ ^依久施加至該強光區所對應的掃描線上；&重復 =C; e.當該掃描驅動器完成—幢掃描後，回到步驟a 開始執行。 與先前技術相比，本發明液晶顯示裝置的每一導光板 的部份區域的底面及出光面均設置有微結構，該設置有微 結構的區域彼此間隔，且各導練的對應區域中僅有一導 光板設置有微結構。當某—光源開啓時，相應區域的微結 構月b使大#伤光線集中在該區域出射，該導光板的強光區 Μ弱光區的分界明顯，該液晶面板的相應強光區與弱光區 也分界明顯，從而較好的解決了液晶顯示裝置的拖影現象。 【實施方式】 請參閱圖4，其係本發明液晶顯示裝置第一實施方式 之結構示意圖。該液晶顯示裝置2〇〇包括一背光模組21 及一液晶面板20，該背光模組21及該液晶面板2〇層疊設 置。該背光模組21包括一第一導光板211、一第二導光板 212及一反射片213。該第一、第二導光板211、212層疊 設置’該第一、第二導光板211、212均為矩形平板，優選 的’該第一、第二導光板211、212的折射率為ι·49，材 料為聚曱基丙烯酸曱酯（ΡΜΜΑ)。每一導光板211、212分 別包括二入光面（未標示）、一出光面（未標示）及一底面（未 標示）’該底面與該二入光面相接，該出光面與該底面相 10 200903090 對。每一入光面處分別設置一光源，例如冷陰極射線管。 .該四光源分別以L卜L2、L3及L4表示。每—導光板211、 -212均勻劃分為四區域，分別以Ai、A]、A3及A4表示 該液晶面板20也對應劃分為四區域，分別以ΑΓ、A2.、 A3<及A4'表示。 請參閱圖5，其係圖4所示四光源及二導光板的立體 結構示意圖。該第一導光板211的區域A1、A3及該第二 導光板212的區域A2、A4的底面部份設置有微结构，例 如v型溝槽結構（v_cut)，該微結構均勻分佈。該v型溝槽 的方向與該四光源⑴…⑴“平行’㉟^溝槽^ 構用於集中左右視角的光線，進而提高背光模組21 度。5亥第一導光板211的區域Al、A3及該第二導光板 的區域A2、A4的出光面部份亦設置有微結構，例如v型 溝槽結構，該微結構呈疏密分佈。該v型溝槽的方向盥： 四光源1^1、1^2、13、[4垂直，該乂型溝槽結構用於調整 光的均勻性並增加光線的視角利用率。 正 請一併麥閲圖6、圖7，圖6係當本發明液晶顯示裝置 的光源L2開啓時其背光模組的光路示意圖，圖7係各本 發明液晶顯示裝置的光源L4開啓時其背光模組的光路厂、 思圖。當光源L2開啓時，光源L2發出的光線進入兮…二 導光板212,大部份光線在第二導光板212的區 = 〜丄内省泰 生全反射然後進入第二導光板212的區域A2，進入第—言 光板212的區域A2的光線中有一部份直接由該第二言‘ 板212的出光面出射後進入該液晶面板2〇 ;另一部广== 11 200903090 第二導光板212的區域A2的底面V型溝槽結構折射，然 • 後穿過該第一導光板211並被該反射片213反射，最後穿 ,過該第一、第二導光板211、212後進入該液晶面板2〇 ; 僅有很少量光線進入第二導光板212的區域A3及A4。即 當光源L2開啓時，光源L2發出的光線絕大部份由該第二 導光板212的區域A2的出光面出射，僅有很小量光線由 該第二導光板212的區域Al、A3及A4的出光面出射。 因此該第一、第二導光板211、212的區域A2為強光區， 區域Al、A3及A4均為弱光區。該液晶面板2〇的區域A2 也相應為強光區’區域Al 、A3 '及A4'均為弱光區。 當光源L4開啓時’光源L4發出的光線進入該第二導 光板212 ’ 一部份光線直接由該第二導光板212的出光面 出射後進入該液晶面板20 ; —部份光線被該第二導光板 212的區域A4的底面V型溝槽結構折射，然後穿過該第 一導光板211並被該反射片213反射，最後穿過該第一、 第一導光板211、212後進入該液晶面板20 ;僅有很少量 光線進入該第二導光板212的區域Al、A2及A3 。即當 光源L4開啓時’光源L4發出的光線絕大部份由該第二導 光板212的區域A4的出光面出射，僅有很小量光線由該 第二導光板212的區域Al、A2及A3的出光面出射。因 此。亥苐、弟一導光板211、212的區域A4為強光區，區 域Al、A2及A3均為弱光區。該液晶面板2〇的區域A4' 也相應為強光區，區域ΑΓ、A2,及A3/均為弱光區。 同理可知’當光源L1開啓時，該第一、第二導光板 12 200903090 211、212的區域A1為強光區，該液晶面板20的區域A1 /也相應為強光區。當光源L3開啓時，該第一、第二導光 板211、212的區域A 3為強光區’§亥液晶面板2 0的區域 A3 /也相應為強光區。 請參閱圖8，其係圖4所示液晶顯示裝置之驅動電路 示意圖。該液晶面板20包括一掃描驅動器24、一資料驅 動器26、一時序控制器28、複數相互平行之掃描線 G1〜Gn、複數相互平行之資料線C1〜Cm、複數晝素電極 205、複數薄膜電晶體207及一公共電極209。該複數掃描 線G1〜Gn與該複數資料線Cl~Cm交叉設置並界定複數晝 素單元208，該晝素電極205以矩陣結構排佈於該複數掃 描線G1〜Gn與該複數資料線C1〜Cm所界定之晝素單元 208内，該公共電極209與該晝素電極205相對設置。 該背光模組21包括一逆變器25及一光源組23，該光 源组23包括該光源LI、L2、L3及L4。 該時序控制器28分別與該掃描驅動器24、該貢料驅 動器26及該逆變器25連接，並分別提供第一、第二控制 訊號及背光控制訊號控制該掃描驅動器24、該資料驅動器 26及該逆變器25 ;該掃描驅動器24驅動該複數掃描線 G1〜Gn，該資料驅動器26驅動該複數資料線C1〜Cm，該 逆變器25驅動該光源組23 ;位於該掃描線與該資料線交 叉處之每一薄膜電晶體207之閘極連接至一掃描線，每一 薄膜電晶體207之源極連接至一資料線，每一薄膜電晶體 207之汲極連接至一晝素電極205。 13 200903090 當該液晶顯示裝置測工作時， 及L4在該逆變器25驅動下，順序開 \L3 開啟時’該第-導光板-、第二導光板二 板20的相應區域為強光區。該液晶面板2〇的每面 應對應一定數量的掃描線。 、-或相 請-併參閱圖9,其係本發明液晶顯 號波形圖。現以該複數掃描線Gl〜Gn條數為二=: 描述該液晶顯示裝置200之驅動方法，在該驅動訊號波^ =.24，’係掃描訊號之波形圖，“L1〜M，，係 = U〜L4之工作狀態波形圖。本實施例之驅動方法“ 二=控制器28提供—第一控制訊號控制該掃描 i，〜G1024上，從掃描、線G1開始加載掃描訊號至掃‘ -第二控制訊號控制該資料驅動器26產生複： 火^以’該複數灰階電壓施加至該複數資料線^心。 。„ 9^· D亥枯序控制器28提供一背光控制訊號控制該逆變 …啓光源L1，該第一、第二導光板211、212的區二 開啓曰面Λ20的區域ΑΓ為強光區。在該光源li 。才a内，该掃描訊號依次施加至該掃描線αι〜σ256 上’即該光源L1的開啟時間為τ/4。 現以掃描線（}2為例描述，當該掃描線g2被施加該掃 田汛唬期間，連接該掃描線G2之複數薄膜電晶體2〇7均 14 200903090 處於開啟狀態’即，連接該掃描線G2之複數薄膜電晶體 如7之及極與源極導通，該複數灰階電壓分別藉由導通之 複數薄膜電晶體2G7施加至複數晝素電極2〇5，從而使複 數晝素單元208實現圖像顯示。 c.該背光控制訊號控制該逆變器25關閉光源L1，開 口光源L2，該第—、第二導光板211、212的區域A2及 。亥液Ba面板20的區域A2 /為強光區。在該光源開啓時 ，内。亥掃也況號依次施加至該掃描線G257〜G512上，即 戎光源L2的開啟時間也為τ/4。 d.以此類推’掃描線G513〜G1024及光源L3、光源 “之驅動方法與步驟c相同，從而完成一幀之顯示驅動： e•下一幀重複以上操作。 與先W技術相比，本發明液晶顯示裝置驅動 成掃描-幢畫面時，在任意時間内僅部份畫面為強= 八他°卩份為弱光區。晝面為強光區的位置也不斷變化，人 =覺到之晝面閃爍現象也隨之降低，從而提高 不裝置200的顯示效果。 頌 。、上述μ施例中所用的每一光源可為冷陰極射線管，也 $為其他線狀光源或者能組成線狀光源的點光 串聯的發光二極體。第-、第二導光板211、212及液^ 反20所劃分區域的面積也可以不等。 凊參閲圖10’其係本發明液晶顯示裝置第二實施方 =示意圖。該液晶顯示裝置期與第—實施方她 曰’·’、、不1置200的結構大致相同，其區別在於：該背光模 15 200903090 組有三個光源，分別以L5、L6、L7表示。該光源l5、 L6及L7可以是冷陰極射線管。該光源L5及光源L7分別 設置於該第-導光板3U的二入光面處，該光源、l6設置 於該第二導光板312的其中一入光面處。該第—第二導 光板3H、3U被均句劃分為三區域，分別以A5、a^a7 表示。該液晶面板30也對應劃分為三區域，分別以a〆、 A6:、Ar表示。該第一導光板311的區域A5 A7及該第 一導先板3i2的區域A6的底面部份均設置有微结构，例 如V型溝槽結構（V_C♦該v型溝槽結構的溝槽方向與該 二光源L5、L6、L7平行，該v型溝槽結構用於隼中左右 視角的光線，進而提高背光模組31的輝度。該第」導光板 311的區域A5、A7及贫笛-道土 及及弟一 V先板3l2的區域A6的出光 面部份亦均設置有V型溝槽結構，該v型溝槽結構的溝槽 方向與5亥二光源JL5、L6、L7番吉，兮丨 , 直该V型溝槽結構用於 调正光的均勻性並增加光線的視角利用率。 •上述貝施例中所用的每—光源可為冷陰極射線管，也 :為其他線狀光源或者能組成線狀光源的點光源，如複數 弟—今先板3lHl2及液晶面 斤區域的面積也可以不等。 ^以上°兄明可知：當該掃描線G1〜Gn數目和光源個數 二士 需相應的增加或減少導光板的個數並相應調整由 〜日'控制裔28 1生之背光驅動訊號之間隔時間，該導 反=液晶面板20、3G所劃分的區域也需要相應改變。When the liquid crystal display 货 I 蛮 Η蜓 Η蜓 Η蜓 丁 置 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , When a certain light source is turned on, the corresponding area of the day panel 10 is... ιη〇, .% . ^ , 坺 is strong first S 110, other areas are weak light area 113 π haiqiang first G 11 〇 庙 temple — Go to i_ 3 / + should be a number of scan lines. At this time, the number of known lines of the summer is sequentially loaded with the right 槁 > cut 咕 ^ 里 data signal. Loaded with ^ minus 'the complex number (four) line correspondingly loaded with 200903090 II. The scan line G2 is taken as an example. When the scan line G2 is loaded with the scan Λ唬%•, the plurality of thin film transistors 仞7 connected to the scan line G2 are all produced in the open shape 15, 31, and connected to the scan line G2. The plurality of thin film transistors 1-07 = the drain and the source are turned on, and the complex data signals are respectively guided by the complex number of the waist transistor 1 q 7 force fe +. j 士 Green plural 昼 element 105, and the scan). The light region 110' of the complex pixel unit 108 effects image display. °海反艾艾& 13 turns off the light source 13' and then turns on another light source 13, which: the 曰曰 panel 10 has another area corresponding to the glare zone, and the other areas are: the driving process of the device 1 与The above-described driving process is approximately repeated = continuously, so that the liquid crystal display device displays the image in succession. 4 and the line should be displayed when the device 100 is in operation, the boundary of the predetermined number of scans; Ming: the face is only 10, the strong light area u〇 and other weak light areas 113, the illuminated area is A, J ' When the source LA is turned on, § When the source is turned on, the area illuminated by the area is the area Α and the area 戸 bow line Β ®, because (4) - the boundary of the fixed number of scans is not obvious, the liquid cares about 2 and other The weak light area 113 is completely solved. The smear phenomenon of people's day, day, and day is not finished. [Invention content] There are 4 " Here, it is necessary to provide a liquid crystal display device which can better solve g. The H page does not have a smear phenomenon. It is also necessary to provide a driving method for the 曰 通 日 。 。 。 。 。 200903090 - A liquid crystal display chip comprising a backlight module comprising at least two light guide plates.兮p I ... , Μ月杈 杈 group 4 at least two light guide plates are stacked, the board includes a bottom surface and a mother's light 5 basal bottom surface, a total of 3 illuminating surfaces, and the second light guide plate is divided into at least two regions. The bottom surface of the to-plate and the corresponding surface of each of the regions are provided with a microstructure, and the regions not provided with the microstructure are spaced apart from each other. ¥先板一液晶显示器装晋柩#七、+ _ m ^ The display device includes a backlight module%β ΒCleaved LCD, wide...Field field slope, and -LCD panel, the backlight module and the liquid曰曰 Panel layer setting. The backlight module includes an inverter, a small light plate and at least two light sources, and the at least two light guide plates are stacked. Each of the two first plates includes a bottom surface, a bottom surface, and a returning surface and at least one light incident surface, the bottom surface being opposite to the light emitting surface. The light incident surface is in contact with the light emitting surface and the bottom surface, adjacent to each H is disposed at the light entrance surface. The at least two light guide plates are generally divided into two regions, each of which has only one light guide plate bottom surface and a corresponding light exit surface provided with a microstructure, and the same light guide plate is provided with a microstructure. The liquid crystal panel includes a scan driver, a timing controller, and a plurality of scan lines, and the liquid crystal panel is also divided into at least two regions. The driving method includes the following steps: a. the timing controller provides a control signal to control the scan driver to generate a scan signal, the scan signal is sequentially applied to the complex scan line; b. the timing controller provides a backlight control signal to control the The transducer opens a light source, and only one area of each light guide plate is a strong light area, and the liquid crystal panel also has only one area as a strong light area, and the scanning signal is sequentially applied to the strong light area during the light source opening time. Corresponding scan line ' C. The backlight control signal controls the inverter to turn off the light source and turn on another 200903090 ^ Each light panel has only another area as a strong light area, and the night and night a panels are correspondingly only another - (four) ^丄r 巧 匕 匕 匕 匕 匕 匕 匕 匕 或 或 或 或 或 或 或 或 或 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕When the scan driver completes the scan, it returns to step a to start execution. Compared with the prior art, the bottom surface and the light-emitting surface of a partial region of each light guide plate of the liquid crystal display device of the present invention are provided with a microstructure, and the micro-structured regions are spaced apart from each other, and only the corresponding regions of each guide are A light guide plate is provided with a microstructure. When a certain light source is turned on, the microstructure b of the corresponding region causes the large damaged light to concentrate on the region, and the boundary between the strong light region and the weak light region of the light guide plate is obvious, and the corresponding strong light region of the liquid crystal panel is weak. The light zone is also clearly demarcated, so that the smear phenomenon of the liquid crystal display device is better solved. [Embodiment] Please refer to Fig. 4, which is a schematic structural view of a first embodiment of a liquid crystal display device of the present invention. The liquid crystal display device 2 includes a backlight module 21 and a liquid crystal panel 20. The backlight module 21 and the liquid crystal panel 2 are stacked. The backlight module 21 includes a first light guide plate 211, a second light guide plate 212, and a reflective sheet 213. The first and second light guide plates 211 and 212 are stacked and disposed. The first and second light guide plates 211 and 212 are rectangular flat plates. Preferably, the refractive indices of the first and second light guide plates 211 and 212 are ι· 49. The material is decyl acrylate (fluorene). Each of the light guide plates 211 and 212 includes a light-incident surface (not shown), a light-emitting surface (not shown), and a bottom surface (not labeled). The bottom surface is connected to the light-incident surface, and the light-emitting surface and the bottom surface Phase 10 200903090 Yes. A light source, such as a cold cathode ray tube, is disposed at each entrance surface. The four light sources are denoted by L, L2, L3 and L4, respectively. Each of the light guide plates 211 and -212 is evenly divided into four regions, which are denoted by Ai, A], A3 and A4, respectively. The liquid crystal panel 20 is also correspondingly divided into four regions, which are denoted by ΑΓ, A2., A3< and A4', respectively. Please refer to FIG. 5 , which is a schematic perspective view of the four light sources and the two light guide plates shown in FIG. 4 . The areas A1, A3 of the first light guide plate 211 and the bottom portions of the areas A2, A4 of the second light guide plate 212 are provided with microstructures, such as a v-shaped groove structure (v_cut), which are evenly distributed. The direction of the v-shaped groove and the four light sources (1)...(1) are “parallel” 35^ the trench structure is used to concentrate the light of the left and right viewing angles, thereby improving the backlight module 21 degrees. The area A1 of the first light guide plate 211 is 5 A3 and the light-emitting surface portions of the regions A2 and A4 of the second light guide plate are also provided with a microstructure, such as a v-shaped groove structure, and the microstructure is densely distributed. The direction of the v-shaped groove is: four light sources 1 ^1, 1^2, 13, [4 vertical, the 沟槽-shaped groove structure is used to adjust the uniformity of light and increase the viewing angle utilization of light. Please read together Figure 6, Figure 7, Figure 6 FIG. 7 is a schematic diagram of the optical path of the backlight module when the light source L2 of the liquid crystal display device of the present invention is turned on, and FIG. 7 is a light source factory of the backlight module when the light source L4 of the liquid crystal display device of the present invention is turned on. When the light source L2 is turned on, the light source is The light emitted by L2 enters the second light guide plate 212, and most of the light is totally reflected in the area of the second light guide plate 212 and then enters the area A2 of the second light guide plate 212 to enter the first light plate 212. A portion of the light of the area A2 is directly emitted from the light exit surface of the second word 'board 212'. The bottom surface of the second light guide plate 212 is refracted by the V-shaped groove structure of the area A2 of the second light guide plate 212, and then passes through the first light guide plate 211 and is reflected by the reflection sheet 213. And finally, after entering the first and second light guide plates 211, 212, entering the liquid crystal panel 2; only a small amount of light enters the areas A3 and A4 of the second light guide plate 212. That is, when the light source L2 is turned on, the light source Most of the light emitted by L2 is emitted from the light exiting surface of the area A2 of the second light guiding plate 212, and only a small amount of light is emitted from the light emitting surfaces of the areas A1, A3 and A4 of the second light guiding plate 212. The area A2 of the first and second light guide plates 211, 212 is a strong light area, and the areas A1, A3, and A4 are all weak light areas. The area A2 of the liquid crystal panel 2 is also corresponding to the strong light area 'area Al, A3' And A4' are both weak light regions. When the light source L4 is turned on, the light emitted by the light source L4 enters the second light guide plate 212'. A part of the light is directly emitted from the light exit surface of the second light guide plate 212 and enters the liquid crystal panel 20 - part of the light is refracted by the bottom V-groove structure of the area A4 of the second light guide 212, Passing through the first light guide plate 211 and being reflected by the reflective sheet 213, and finally entering the liquid crystal panel 20 after passing through the first and first light guide plates 211 and 212; only a small amount of light enters the second light guide plate 212. The areas A1, A2, and A3, that is, when the light source L4 is turned on, the light emitted by the light source L4 is mostly emitted by the light exiting surface of the area A4 of the second light guide plate 212, and only a small amount of light is emitted by the second light guide. The light-emitting surfaces of the areas A1, A2, and A3 of the light-emitting plate 212 are emitted. Therefore, the area A4 of the light guide plates 211 and 212 is a strong light area, and the areas A1, A2, and A3 are all weak light areas. The area A4' of the liquid crystal panel 2 is also corresponding to a strong light area, and the areas ΑΓ, A2, and A3/ are both weak light areas. Similarly, when the light source L1 is turned on, the area A1 of the first and second light guide plates 12 200903090 211, 212 is a strong light area, and the area A1 / of the liquid crystal panel 20 is also a strong light area. When the light source L3 is turned on, the area A 3 of the first and second light guide plates 211, 212 is a strong light area, and the area A3 of the liquid crystal panel 20 is also a strong light area. Please refer to FIG. 8, which is a schematic diagram of a driving circuit of the liquid crystal display device shown in FIG. The liquid crystal panel 20 includes a scan driver 24, a data driver 26, a timing controller 28, a plurality of mutually parallel scan lines G1 GGn, a plurality of mutually parallel data lines C1 to Cm, a plurality of pixel electrodes 205, and a plurality of thin film electrodes. The crystal 207 and a common electrode 209. The plurality of scanning lines G1 to Gn are disposed to intersect with the plurality of data lines C1 to Cm and define a plurality of pixel units 208 arranged in a matrix structure on the plurality of scanning lines G1 to Gn and the plurality of data lines C1 to The common electrode 209 is disposed opposite to the halogen electrode 205 in the pixel unit 208 defined by Cm. The backlight module 21 includes an inverter 25 and a light source group 23, and the light source group 23 includes the light sources LI, L2, L3 and L4. The timing controller 28 is respectively connected to the scan driver 24, the tributary driver 26 and the inverter 25, and provides first and second control signals and backlight control signals respectively to control the scan driver 24, the data driver 26 and The inverter driver 25 drives the plurality of scan lines G1 GGn, the data driver 26 drives the plurality of data lines C1 CMm, the inverter 25 drives the light source group 23; the scan line and the data are located The gate of each of the thin film transistors 207 is connected to a scan line, the source of each thin film transistor 207 is connected to a data line, and the drain of each thin film transistor 207 is connected to a halogen electrode 205. . 13 200903090 When the liquid crystal display device is working, and L4 is driven by the inverter 25, the corresponding area of the first light guide plate and the second light guide plate 20 is a strong light region when the sequence is opened and L3 is turned on. . Each side of the liquid crystal panel 2 is corresponding to a certain number of scanning lines. - or - Please refer to Figure 9, which is a waveform diagram of the liquid crystal display of the present invention. Now, the number of the plurality of scanning lines G1 to Gn is two =: The driving method of the liquid crystal display device 200 is described. In the driving signal wave ^=.24, the waveform of the scanning signal is "L1~M," = U ~ L4 working state waveform diagram. The driving method of this embodiment "two = controller 28 provides - the first control signal controls the scan i, ~ G1024, from the scan, line G1 starts loading the scan signal to sweep" - The second control signal controls the data driver 26 to generate a complex: fire ^ to apply the complex gray scale voltage to the plurality of data lines. . „ 9^· D 枯 序 控制器 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 背光 28 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光In the light source li, the scanning signal is sequentially applied to the scanning line αι~σ256, that is, the opening time of the light source L1 is τ/4. Now, the scanning line (}2 is taken as an example, when the scanning During the application of the scan line G2, the plurality of thin film transistors 2〇7 are connected to the scan line G2. 200903090 is in an open state, that is, a plurality of thin film transistors connected to the scan line G2, such as the sum of the electrodes and the source. The polarity is turned on, and the complex gray scale voltage is respectively applied to the plurality of pixel electrodes 2〇7 by the turned-on plurality of thin film transistors 2G7, so that the plurality of pixel units 208 realize image display. c. The backlight control signal controls the inverter The device 25 turns off the light source L1, the aperture light source L2, the area A2 of the first and second light guide plates 211, 212, and the area A2 / of the black liquid Ba panel 20 are strong light areas. When the light source is turned on, the inner light sweeps. The condition numbers are sequentially applied to the scanning lines G257 to G512, that is, the light source L2. The turn-on time is also τ/4. d. By analogy, the scan lines G513~G1024 and the light source L3, the light source are driven in the same manner as step c, thereby completing the display drive of one frame: e• repeating the above operation in the next frame Compared with the prior W technology, when the liquid crystal display device of the present invention is driven into a scan-frame, only a part of the picture is strong = 八 卩 is a weak light area at any time. The position of the 强 surface is a strong light area. It also changes constantly, and the phenomenon of flickering is also reduced, so that the display effect of the device 200 is improved. 每一. Each of the light sources used in the above-mentioned μ embodiment can be a cold cathode ray tube, and also Other linear light sources or light-emitting diodes capable of constituting a linear light source in series, the areas of the first and second light guide plates 211, 212 and the liquid-resolved area may be different. 图 See FIG. The second embodiment of the liquid crystal display device of the present invention is a schematic diagram. The liquid crystal display device has substantially the same structure as the first embodiment of the present invention, and the difference is that the backlight module 15 200903090 The group has three light sources, respectively L5, L6, L The light source l5, L6, and L7 may be a cold cathode ray tube. The light source L5 and the light source L7 are respectively disposed at the diffractive surface of the first light guide plate 3U, and the light source, 16 is disposed on the second light guide plate. The first and second light guide plates 3H, 3U are divided into three regions, which are respectively represented by A5, a^a7. The liquid crystal panel 30 is also correspondingly divided into three regions, respectively, a 〆, A6:, Ar, the bottom surface of the area A5 A7 of the first light guide plate 311 and the area A6 of the first lead plate 3i2 are provided with a microstructure, such as a V-shaped groove structure (V_C♦ the v The groove direction of the groove structure is parallel to the two light sources L5, L6, and L7. The v-type groove structure is used for the light in the left and right viewing angles of the crucible, thereby improving the brightness of the backlight module 31. The regions A5 and A7 of the first light guide plate 311 and the light-emitting surface portions of the area A6 of the detonator-boiler and the V-first plate 31 are also provided with a V-shaped groove structure, and the v-shaped groove structure The groove direction and the 5H2 light source JL5, L6, L7, and the V-shaped groove structure are used to adjust the uniformity of the light and increase the viewing angle utilization of the light. • Each of the light sources used in the above-mentioned Beishi example can be a cold cathode ray tube, also: other linear light sources or point light sources that can form a linear light source, such as the area of the first few brothers - the current board 3lHl2 and the liquid crystal surface area Can also wait. ^ Above ° brother can know: when the number of scanning lines G1 ~ Gn and the number of light source two people need to increase or decrease the number of light guide plates and adjust the interval between the backlight drive signals from the ~ Time, the reverse direction = the area divided by the liquid crystal panels 20, 3G also needs to be changed accordingly.
間的關係如下：當光源個數k (k為整數，且k ^ 16 200903090 時’所需導光板的個數為k/2，導光板及液晶面板2〇 被劃分為k個區域，每一光源開啟時間為. 數k為奇數時’所需導光板的個數為（k+i)/2,導:板及^ 晶面板20、30被劃分為k個區 攻 T/k。 甘九源開啟時間為 綜上所述，本發明確已符合發明之 心 袁条丨I由古主 w 、 要件麦依法提出 明‘，以上所述者僅為本發明之較佳實施 本發明之範圍並不以上述實施 、 ^ 蟄之人士援依本發明之精神、 木技 涵盍於以下申請專利範圍内。 文亿白應 【圖式簡單說明】 晶顯示裝置之立體分解示意 圖1係一種先前技術液 圖 示液晶顯示裝置之驅動電路示意圖 界不明顯的原理圖 圖4 圖。 示液BS面板上強光區和其他弱光區的邊 0 係本發明液晶顯示裝 衣罝弟貝她方式之結構示意 ϋ係圖4所示四光源及二導光板的立 體結構示意圖 光模液晶顯示裳置的光源L2開啓時其背 圖 圖7仓；» 光模組的光：示上：液s曰顯不裝置的光源L4開啓時其背 17 200903090 圖8係圖4所示液晶顯示裝置之驅動電路示意圖。 圖9係本發明液晶顯示裝置的驅動訊號波形圖。 圖10係本發明液晶顯示裝置第二實施方式之結構示 意圖。 【主要元件符號說明】 液晶面板 20、30 背光模組 液晶顯7F裝置 第一導光板 第二導光板 反射片 光源 導光板的區域 液晶面板的區域 21、31 200 、 300 211 ' 311 212 、 312 213 、 313 LI、L2、L3、L4、L5 ' L6、L7 Al、A2、A3、A4、A5、A6、A7 ΑΓ、A2'、A3'、A4,、A5'、A6,、A7, 18The relationship between the two is as follows: when the number of light sources k (k is an integer, and k ^ 16 200903090 'the number of required light guide plates is k/2, the light guide plate and the liquid crystal panel 2〇 are divided into k regions, each The light source on time is . When the number k is an odd number, the number of required light guide plates is (k+i)/2, and the guide plate and the crystal plate 20, 30 are divided into k zones T/k. In view of the above, the present invention has indeed met the inventor's heart. The term "I" is determined by the ancient master w and the essentials, and the above is only the preferred embodiment of the present invention. The above-mentioned implementation, the person of the 援 援 依 依 依 、 木 木 、 、 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The schematic diagram of the schematic diagram of the driving circuit of the liquid crystal display device is shown in Fig. 4. The side of the strong light region and other weak light regions on the liquid panel of the present invention is the structure of the liquid crystal display of the present invention. FIG. 4 is a schematic view showing the three-dimensional structure of the four light sources and the two light guide plates. When the light source L2 of the liquid crystal display is turned on, its back view is shown in Fig. 7; » Light of the light module: the liquid crystal display is shown when the light source L4 of the liquid s is not turned on. 200903090 Fig. 8 is the liquid crystal display shown in Fig. 4. Figure 9 is a schematic diagram showing the driving signal of the liquid crystal display device of the present invention. Figure 10 is a schematic view showing the structure of the second embodiment of the liquid crystal display device of the present invention. [Description of main components] LCD panel 20, 30 backlight module Liquid crystal display 7F device first light guide plate second light guide plate reflective sheet light source light guide plate area liquid crystal panel area 21, 31 200, 300 211 ' 311 212 , 312 213 , 313 LI , L2 , L3 , L4 , L5 ' L6 , L7 Al, A2, A3, A4, A5, A6, A7 ΑΓ, A2', A3', A4, A5', A6, A7, 18