200849175 九、發明說明： 【發明所屬之技術領域】 • 本毛明係關力矛重液晶顯示面板驅動裝置及其驅動方 法。 【先前技術】 由於液晶顯示面板具輕、薄、耗電小等優點，被廣泛 應用於電視、筆記型電腦、行動電話、個人數位助理等現 ,絲資訊設備。目前，液晶顯示面板電視市場上之應用越 來越重要。惟’液晶之反應速度較慢之特性及液晶顯示面 板之穩態_d-Type)發光方式，導致晝面存在較嚴重之拖 影現象。 〜為解決上述拖影現象，業界人士最先提出-種插黑技 =，即將晝面顯示之每一幀分為一第一子時段及一第二子 時段，第一子時段顯示實際晝面，第二子時段顯示黑晝面。 j由於每一實際晝面之間都會插入一黑晝面，因此人眼 (會明顯感受到晝面之閃燦。其次，由於每一巾貞中都插入了 黑晝面，因此晝面整體亮度會將低。 為了改善上述閃爍及亮度降低之現象，業界人士又提 出一種插灰技術。請參閱圖i，係一種先前技術之液晶顯 示面板驅動裝置之示意圖。該液晶顯示面板驅動裝置⑺ 匕括幀存儲态U、一比較器12及一灰階處理器13。該 1存儲器11用於接收一待顯示之第（m+1)幀晝面之像素灰 ^ V(m + 1)，並將其存儲之第m幀晝面之像素灰階V(m)輸 出至該比較器12。其中，m=0〜59。 7 200849175 田假設該液晶顯示面板14 t解析度為Ixj。該比較器12 :接收2個第m幢畫面之像素灰階v(m)及-待顯示 =弟（m+m貞晝面之像素灰階v(m+i)，並對應比較第m中貞 -面口像素之灰階ν^Μ·)及第貞畫面各像素之灰階 (1 ’Μ)輪出對應之比較結果至該灰階處理器丄3。其 中，Vdn’i，〗）表示第m巾貞晝面中第像素之灰階了 W·1，1’』）表示第（m+1)幢畫面中第（i，j)像素之灰階，1 ^ i ^ I，1 S j $ J。 — 該灰階處理器13用於接收一待顯示之第（m + l)幀晝面 之像素灰h V(m + 1)，將各個像素之像素灰階轉 換成2組杈正灰階。每一組校正灰階包括一校正灰階a及 二校正，階B。該灰階處理器13根據該比較器12之比較 、、口果k擇/、中組校正灰階，並在一巾貞之連續二時間段 内分另:輸出校正灰階A及校正灰階B至液晶顯示面板14。 請一併參閱圖2,係二組校正灰階對應之亮度值曲線 圖。其中，校正灰階1A及校正灰階1B分別為像素灰階 v(m+l，i，j)第一時間段内對應之灰階及像素灰階v(m+i，i，D 第二時間段内對應之灰階。校正灰階2A之亮度值大於像 素灰階V(m+l，i，j)之亮度值，校正灰階2B之亮度值小於像 素灰階V(m + l，i，j)之亮度值，且校正灰階2a和校正灰階 2B對應之像素之平均亮度值等於像素灰階v(m+i，i，j)對應 之亮度值。 ’ ’ 〜 該液晶顯示面板驅動裝置10之驅動方法包括如下步 驟： 200849175 w 3.輸出代表一待顯示之第（m+l)幀晝面之像素灰階 財儲器u及該比較器12 ’同時該幀存儲器 别 i個第m幀晝面之像素灰階V(m)至該比較哭12. 12對應比較帛m幢畫面各像素之^階 (，M)及弟（m+1)幀晝面各像素之灰階乂㈤+“ α個比較結果輸出至該灰階處理器13 ; 、 t顯不，則該灰階處理器u選擇校正灰階i， 續時間段内分別輸出校正灰_及校正灰階ΐβ 幢第Sr去面板14;若v(m,1，如ν(ιη+1，υ)，即第㈣） 階2/素係動隸示’則該灰階處理器13選擇校正灰 白亚在一幀中二連續時間 校正灰㈣至液晶顯示面板14“j輪出⑽階从和 值^ = ^階1和校正灰階2對應之像素之平均亮度 顯】=:科侧之亮度值，因此該液晶 14顯干動能上體晝面党度不變。惟，該液晶顯示面板 ”、、貝不勳悲畫面時，每一幀内都合一 面，因此該液晶顯示面板14仍^避党晝面及一暗晝 面顯示品質。自扳14仍^避免閃爍問題，影響晝 【發明内容】 有鑑於此，提供一種畫面顯 一 板驅動裝置實為必需。 、口口貝車父南之液晶顯示面 法亦為必需。提供上述液日日顯不面板驅動裝置之驅動方 200849175 :餘晶顯示面板驅動裝置，其包括一㈣儲器、一 上：；：；檢測器、—晝面複雜程度計算器及-灰階 _存儲器用於接收待顯示之-幢晝面之像素灰 =輸出其存儲之上1晝面之像素灰階：該比較；用 上一Li顯不之一幅晝面之像素灰階及該幢存儲器輪出之 階，並輸出對應之比— 像素之灰 比幸乂…果。该壳度檢測器用於檢測待顯 ^貞1面各個像素之亮度值並 計算器用於計算待顯干之—砧+ —田稷硪柱度 出 ，、幀旦面之畫面複雜程度值並輸 出。錢輯換H詩接“顯示之—巾貞 :，將各個像素之像素灰階轉換成多組校正；階， 轉換器^白該f白 it Μ π & & 平乂、、°果、各像素之壳度值及晝面 …又值’選擇輸出一組校正灰階至一液晶顯示面板。 上述丄夜晶顯示面板驅動裝置之驅動方法包括如下步 界：:广二!顯？ΐ 一幢畫面之像素灰階輸出至_儲 Π a士^^ σσ °亥冗度檢測器及該晝面複雜程度計算器， 二=巾貞存儲器輸出上一鴨晝面之像素灰階至該比較器； 結二應比較該，晝面各像素之灰階，並將比較 :产：於：亥灰階轉換器；同時該亮度檢測器將各像素之 :二夕：ΐ錢階轉換器’該畫面複雜程度計算器將各 換-^面複雜程度值輸出至該灰階轉換器；c.該灰階轉 ==!較器輸出之各像素之比較結果、各像素之亮 度^畫面稷雜程度值選擇—組校正灰階，輸出至液晶顯 不由板^。 200849175 相幸又於先如技術，該液晶顯示面板驅動裝置之灰階轉 換器可以將每—巾貞畫面之各像素之像素灰階轉換成多組校 火h且根據各像素之焭度值及像素所在陣列之晝面複 雜，度值選擇-組最合適之校正灰階，既可有效克服拖影 問題、又可有效克服閃爍問題。另，每一組校正灰階對應 之像素之平均顯示亮度值可以控制’亦可避免晝面整體^ f 度降低之問題。因Λ，該液晶顯示面板驅動裝置及驅動； 法驅動之液晶顯示面板之顯示品質較高。 【實施方式】 每明芩閱圖3，係本發明液晶顯示面板驅動裝置一較佳 貝也方式之示思圖。違液晶顯示面板驅動裝置20包括一幢 t儲器？1、一比較器22、一亮度檢測器23、-晝面複雜 私度计异态24及一灰階轉換器25。 該幢存儲器用於接收一待顯示之第（m+l)鴨晝面之 像素灰階V(m + 1)，並將其存儲之第m鴨晝面之像素灰階 v(m)輸出至該比較器22。其中’ m = 〇〜59。該亮度檢測器 23用於檢測一待顯示之第（m + 1)幀晝面各個像素之亮度 值，並將亮度值輸出至該灰階轉換器25。 假設該液晶顯示面板驅動裝f 2〇驅動之液晶顯示面 板26之解析度為1〇24χ768。以12列“行為一個陣列， 將液晶顯示面板26之顯示區域分為64個陣列。嗜 雜程度計算器24用於計笞第「 °旦 了 第（111+1)+貞旦面母一個陣列之書 口面複雜程度值，並將各畫面複隸度值輸出至該灰階轉換 器25。該晝面複雜程度值可藉由計算一陣列畫面對應之灰 11 200849175 階數量來確定。 该比車父斋22用於接收一整個第m幀畫面之像素灰階 V(m)及一待顯示之第（m + 1)幀畫面之像素灰階v(m + 1)，並 對應比較第m幀畫面各像素之灰階及第（m + 1)幀晝 面各像素之灰階V(m + l，i，j)，輸出對應之比較結果至該^ 階轉換器25。其中，V(m，i，j)表示第m幀晝面中第（丨，〗）像素 之灰階，V(m + l，i，j)表示第（m + 1)幀畫面中第卩⑴像素之灰 階，l^i^I，J。 ’ ’、 該灰階轉換器25用於接收一整個第（m + 1)幀晝面之像 ^:皆v(m+1) ’將各個像素之像素灰階，+1“捕換成 二校正灰階。每-組校正灰階包括一校正灰階A及一校 正灰階B。該灰階轉換器25根據該比 之比較結果、第（m+1)幢書面琴傻丰夕二輸出之像素 .^ W貝旦面4像素之焭度值及該像素所 之晝面複雜程度值’選擇—組校正灰階，並在 寺㈣分別輸出校正灰階Α及校 液 素灰階，+1却對應之亮度值。 ^值寻於像 請一併參閱圖4,係該比較哭 ㈣像素之比較結果、帛m 巾貞晝面第 第瓜财面第⑽像素所在陣;' 素之亮度值、 χ^»^(χ>2)Ώ 複雜程度值分為γ個等級丄弟 其中，亮度值等級趟丄（==)，杈正灰階為（X+Y)組。 專'，及越向’則表明亮度值越大，•畫面複雜程 12 200849175 度值：、、及越冋’則表明畫面複雜程度值越大。 曲二：ί閱圖5,圖5係多組校正灰階對應之亮度值 b 〃 .. ’彳父正灰階1 A及校正灰階分別為像素灰 二+ Im + :::，j)第一時間段内對應之灰階及像素灰階 # w 弟—時間段内對應之灰階。該液晶顯示面板驅動 衣置20之驅動方法包括如下步驟： $二：表—，個第(m+”幀晝面之像素灰㉟V(m+1) 面二1子庳态21、該比較器22、該亮度檢測器23及該畫 = 計算器24 ’同時該幀存儲器21輸出一整個第 m 、里面之像素灰階V(m)至該比較器22 ; 22對應比較帛m幢晝面各像素之灰階 比較畫面各像素之灰階，+叫），並將 將該灰階轉換器、25 ;同時該亮度檢測器23 2象素之亮度值輸出至該灰階轉換器25， 度計算器24將各陳列之金而、®復雜柱 換器25; 各陣列之晝面稷雜程度值輸出至該灰階轉 C.該灰階轉換器25會根據該比較器22輸出之 ί素之比較結果、該第⑽像素之亮度值及第（i，j)像素所在 2之晝面複雜程度值選擇—組校正灰階，並在_幢之二 示^=段内分別輸出校正灰階A及校正灰階^至液晶顯 -亥灰階轉換為25選擇校正灰階之方法如下·· 能題若，灿，·1〜·）’即第㈣）巾貞第（咖象素係靜 心頒不；則該灰階轉換器25選擇校正灰階1，並在—幢之 13 200849175 1續時間段内分別輸出校正灰階μ及校正灰階1B至液 日日#示面板26 ; 能右即第（盼1)㈣（i，j)像素係動 恶顯不，則分為以下幾種選擇方法： 德喜若第（i，j)像素之亮度值處於第1等級（即最暗），且第（U) 。所在陣列之晝面複雜程度值處於帛Y等級（即最複 :)」則畫面最難分辨，選擇校正灰階(x+ 所不，㈣階(…-1)之振幅最大，使晝面容易分辨。 右纯雜素之亮度值處於第i等級，且第㈣像 ’、奴正灰階（X + Υ 一 2)之振中5 僅小於校正灰階（χ+γ—”之振幅。 中田 1等級，且第（i，j)像素所 等級，則選擇校正灰階 若第（i，j)像素之亮度值處於第 在陣列之晝面複雜程度值處於第] X。 且第（i，j)像素所 則擇校正灰階 若第（i，j)像素之亮度值處於第2等級 在陣列之畫面複雜程度值處於第γ等級 (X+ Y — 2)。 若第（i，j)像素之亮度值處於第2等級 ^ 在陣列之晝面複雜程度值處於第（γ 且第（1，j)像素所 灰階（X+Y-3)。 H級，則選擇校正 等級，且第（u)像素所 若第（i，j)像素之亮度值處於第2 14 200849175 在陣列之晝面複雜程度值處 (X — 1)。 則砥擇校正灰階 推’若第（i，j)像素之亮度 亮），且第（i，j)像素所在陣列# 、弟Χ寺級（即最 ^ isp 旱列之畫面锼雜程度值處於第彳笙 級(即取間早)，則選擇校正灰階2。如圖5所„二寻 2之振幅僅大於校正灰階丨之振幅。 X正火階 相較於先前技術，該液晶顯 轉換器25可以將备攸^動衣置20之灰階 V(m + l，i，j)轉換成/ 、旦面之各像素之像素灰階 像素所在陣列之金面複5^灰階’且根據各像素之亮度值及 L既可㈣服拖影問題、又可有效克服：正灰 :、，且&正灰階對應之像素顯示亮度值可以#制為等於傻 素灰階V(m + 1 i η斟施夕丄ώ 阻」从控制為寻於像 降低之問韻。阳， 值，亦可避免畫面整體亮度 法驅動之液晶顯示面板26之顯示==置2〇及驅動方 ^晶顯示面板驅動裝置2{}亦 二車ΠΓΓ’亦可以3列4行或24列二為 計算= /便该晝面複雜程度 板26, "士 ： 稷雜程度值；當液晶顯示面 二Γ: 724用於计异―鴨晝面之晝面複雜程度值。 提出專==，本發明確已符合發明專利之要件，麦依法 式：：申μ。惟，以上所述者僅為本發明之較佳實施方 本么明之範圍並不以上述實施方式為限，舉凡熟習本 15 200849175 f:'藝5士援依本發明之精神所作之等效修飾或變化， 白應涵盍於以下申請專利範圍内。 【圖式簡單說明】 圖1係一種先前技術之液晶顯示面板驅動裝置之咅 圖2係二組校正灰階對應之亮度值曲線圖。 回 圖3係本發明液晶顯示面板驅動裝置一較佳實施方 一 意圖。 、八之不 r 圖4係比較結果、亮度值、晝面複雜程度值與多組校正 階之對應關係表。 圖5係多組校正灰階對應之亮度值曲線圖。 Γ主要元件符號說明 液晶顯示面板驅動裝 比較器 晝面複雜程度計算器 液晶顯示面板 置 20 幀存儲器 21 22 亮度檢測器 23 24 灰階轉換器 25 26 16200849175 IX. INSTRUCTIONS: [Technical field to which the invention pertains] • The present invention is a driving device for a liquid crystal display panel and a driving method thereof. [Prior Art] Since the liquid crystal display panel has the advantages of being light, thin, and low in power consumption, it is widely used in television, notebook computers, mobile phones, personal digital assistants, and the like. At present, the application in the LCD panel market is becoming more and more important. However, the slower response of the liquid crystal and the steady-state _d-Type of the liquid crystal display panel result in a more serious smear phenomenon on the surface. ~ In order to solve the above-mentioned smear phenomenon, the industry first proposed - inserting black technology =, that is, each frame of the face display is divided into a first sub-period and a second sub-period, and the first sub-period displays the actual kneading The second sub-period shows the black face. j Since each black face is inserted between each actual face, the human eye will obviously feel the flash of the face. Secondly, since the black face is inserted in each frame, the overall brightness of the face In order to improve the above phenomenon of flickering and brightness reduction, the industry has proposed a technique of inserting ash. Referring to Figure i, there is a schematic diagram of a prior art liquid crystal display panel driving device. The liquid crystal display panel driving device (7) a frame storage state U, a comparator 12 and a gray scale processor 13. The 1 memory 11 is configured to receive a pixel gray V (m + 1) of a (m+1)th frame to be displayed, and The pixel gray scale V(m) of the mth frame stored therein is output to the comparator 12. Where m = 0 to 59. 7 200849175 The field assumes that the resolution of the liquid crystal display panel 14 t is Ixj. : Receive pixel grayscale v(m) of 2 mth frame and - to be displayed = brother (m+m) of m+m贞昼 pixel grayscale v(m+i), and compare the mth middle face-face mouth The gray scale of the pixel ν^Μ·) and the gray scale (1 'Μ) of each pixel of the second picture are rotated to correspond to the gray scale processor 丄3. In the middle, Vdn'i, 〗) indicates the gray level of the (i, j)th pixel in the (m+1)th frame of the (m+1)th frame. , 1 ^ i ^ I,1 S j $ J. The grayscale processor 13 is configured to receive a pixel gray h V(m + 1) of the (m + l) frame to be displayed, and convert the pixel gray scale of each pixel into two sets of positive gray scales. Each set of corrected gray levels includes a corrected gray level a and two corrections, order B. The gray scale processor 13 separates the gray scale according to the comparison of the comparator 12, the key k, and the middle group, and outputs the corrected gray scale A and the corrected gray scale B in two consecutive time periods of one frame. To the liquid crystal display panel 14. Please refer to Figure 2 together, which is a graph of the brightness values corresponding to the two sets of corrected gray scales. Wherein, the corrected gray scale 1A and the corrected gray scale 1B are gray scales and pixel gray scales v (m+i, i, D second) in the first time period of the pixel gray scale v(m+l, i, j), respectively. Corresponding gray scale in the time period. The brightness value of the corrected gray level 2A is greater than the brightness value of the pixel gray level V (m+l, i, j), and the brightness value of the corrected gray level 2B is smaller than the pixel gray level V (m + l, The brightness value of i, j), and the average brightness value of the pixel corresponding to the corrected gray level 2a and the corrected gray level 2B is equal to the brightness value corresponding to the pixel gray level v(m+i, i, j). ' ' ~ the liquid crystal display The driving method of the panel driving device 10 includes the following steps: 200849175 w 3. Outputting a pixel grayscale memory u representing the (m+1)th frame to be displayed and the comparator 12' while the frame memory is different The pixel gray level V(m) of the mth frame to the comparison is crying 12. 12 corresponds to the gray level of each pixel of each pixel of the 帛m building screen (M) and the younger (m+1) frame Step 乂(5)+“α comparison results are output to the gray scale processor 13; and t is not displayed, then the gray scale processor u selects the corrected gray scale i, and outputs the corrected gray _ and the corrected gray scale ΐβ in the continuous time period respectively. Building Sr to face The plate 14; if v(m,1, such as ν(ιη+1,υ), ie, the fourth (4)th order 2/ prime mover', then the grayscale processor 13 selects the corrected gray white in two frames in a continuous Time correction gray (four) to the liquid crystal display panel 14 "j round out (10) order from the sum value ^ = ^ step 1 and the average brightness of the pixel corresponding to the corrected gray level 2] =: the brightness value of the branch side, so the liquid crystal 14 is dry The kinetic energy upper body does not change. However, when the liquid crystal display panel is in a frame, each frame is combined with one side, so the liquid crystal display panel 14 still avoids the party face and a dark face. Display quality. Self-pull 14 still avoids flickering problems, affecting 昼 [Summary of the Invention] In view of this, it is necessary to provide a screen display panel driving device. The liquid crystal display surface method of the mouth of the car is also necessary. Providing the above-mentioned liquid day and day panel driving device driver 200849175: the afterglow display panel driving device, which comprises a (four) reservoir, an upper:;;; detector, - face complexity calculator and - gray scale _ The memory is used to receive the pixel gray of the building to be displayed = output the pixel above the storage surface Gray scale: the comparison; use the previous Li to display the pixel gray level of the surface and the order of the memory rotation, and output the corresponding ratio - the pixel gray ratio is better than the fruit. The shell detector is used. In the detection of the brightness value of each pixel of the surface to be displayed, and the calculator is used to calculate the anvil + the field column to be dried, and the frame complexity value of the frame surface is output and output. Connected to the display - 贞:, the pixel grayscale of each pixel is converted into multiple sets of correction; order, converter ^ white the f white it Μ π && flat, ° fruit, the shell of each pixel Value and face...Value 'Select to output a set of corrected grayscale to a liquid crystal display panel. The driving method of the above-mentioned day and night crystal display panel driving device includes the following steps:: Guang 2!像素 Pixel grayscale output of a picture to _ Π Π 士 ^^ σσ °Hai redundancy detector and the kneading complexity calculator, two = 贞 贞 memory output on a duck 昼 face pixel gray to the Comparator; The second should be compared, the gray level of each pixel of the face, and will be compared: production: in: Hai gray-scale converter; at the same time the brightness detector will be each pixel: Erxi: ΐ money-level converter' The picture complexity calculator outputs the value of each face-to-face complexity to the gray-scale converter; c. the gray-scale turn ==! comparison result of each pixel of the output of the device, the brightness of each pixel, and the picture is noisy Degree value selection—The group corrects the grayscale and outputs to the LCD display panel. 200849175 Fortunately, as before, the gray scale converter of the liquid crystal display panel driving device can convert the pixel gray scale of each pixel of each frame into a plurality of sets of calibration h and according to the brightness value of each pixel and The pixels in the array are complex, and the degree selection-group is the most suitable correction gray scale, which can effectively overcome the smear problem and effectively overcome the flicker problem. In addition, the average display brightness value of each group of pixels corresponding to the gray scale can be controlled to avoid the problem that the overall surface roughness is reduced. Because of this, the liquid crystal display panel driving device and the driving; the liquid crystal display panel driven by the method has high display quality. [Embodiment] Each of the liquid crystal display panel driving devices of the present invention is illustrated in a preferred manner. Is the LCD display panel drive unit 20 including a t-reservoir? 1. A comparator 22, a brightness detector 23, a facet complex, a telemeter 24 and a gray scale converter 25. The building block is configured to receive a pixel gray scale V(m + 1) of the (m+l) duck face to be displayed, and output the pixel gray scale v(m) of the mth duck face stored therein to The comparator 22. Where ' m = 〇~59. The luminance detector 23 is configured to detect a luminance value of each pixel of the (m + 1)th frame to be displayed, and output the luminance value to the gray scale converter 25. It is assumed that the resolution of the liquid crystal display panel 26 driven by the liquid crystal display panel is 1 〇 24 χ 768. The display area of the liquid crystal display panel 26 is divided into 64 arrays in 12 columns. The doping level calculator 24 is used to calculate an array of the first (111+1) + 面 面 面The book face complexity value is output to each gray scale converter 25. The face complexity value can be determined by calculating the number of grays 11 200849175 orders corresponding to an array picture. The car father is used to receive the pixel gray level V(m) of an entire mth frame picture and the pixel gray level v(m + 1) of the (m + 1) frame picture to be displayed, and correspondingly compare the mth. The gray scale of each pixel of the frame picture and the gray scale V(m + l, i, j) of each pixel of the (m + 1) frame, and the corresponding comparison result is output to the step converter 25. Among them, V ( m, i, j) represents the gray level of the (丨, 〗) pixel in the m-th frame, and V(m + l, i, j) represents the gray of the 卩 (1) pixel in the (m + 1) frame picture Step, l^i^I, J. ' ', the gray scale converter 25 is used to receive an image of the entire (m + 1) frame surface ^: both v(m+1) 'pixels of each pixel Gray scale, +1 "taken into two corrected gray levels. Each set of corrected gray levels includes a corrected gray level A and a corrected gray level B. According to the comparison result of the ratio, the gray scale converter 25 outputs the pixel of the (m+1)th written piano, the pixel of the 4th pixel, and the complexity of the pixel of the pixel. The value 'selection-group corrects the gray scale, and outputs the corrected gray scale Α and the calibrating gray scale in the temple (4), respectively, and the corresponding brightness value of +1. ^ Value search for please refer to Figure 4, the comparison of crying (four) pixels, 帛m 贞昼 第 第 第 第 第 第 第 第 第 第 第 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; 亮度 亮度 亮度 亮度 亮度 亮度χ>2) 复杂 The complexity value is divided into γ levels, among which the brightness value level 趟丄 (==) and the 灰 positive gray level is (X+Y) group. The special ', and the more ' indicates the greater the brightness value, • The picture complexity process 12 200849175 Degree value:,, and more 冋' indicates that the picture complexity value is larger. Qu 2: 阅 See Figure 5, Figure 5 is the brightness value corresponding to multiple sets of gray scales b 〃 .. '彳Father gray level 1 A and the corrected gray level are pixel gray two + Im + :::, j) Corresponding gray scale and pixel gray scale # w in the first time period - the corresponding gray scale in the time period. The driving method of the liquid crystal display panel driving device 20 includes the following steps: $2: Table-, a pixel (m+" frame, pixel gray 35V (m+1), a surface, a sub-state 21, the comparator 22 The brightness detector 23 and the picture=calculator 24' simultaneously output the entire mth and inner pixel gray level V(m) to the comparator 22; 22 corresponding to each pixel of the frame The gray scale compares the gray scale of each pixel of the picture, + call), and outputs the gray scale converter, 25; and the luminance value of the luminance detector 23 2 pixels to the gray scale converter 25, the degree calculator 24, each of the display gold, ® complex column changer 25; the face noise level of each array is output to the gray scale to C. The gray scale converter 25 will be compared according to the output of the comparator 22 As a result, the brightness value of the (10)th pixel and the kinematic complexity value of the (i,j)th pixel are selected as a group-corrected grayscale, and the corrected grayscale A and the corrected grayscale A are respectively outputted in the second block of the _ block Correcting the gray scale ^ to the liquid crystal display - the gray scale is converted to 25. The method of selecting the gray scale is as follows: · Can the title, Can, · 1~·) 'that is the fourth (four)) towel贞第( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( Day #示面板26; Can the right is the first (hop 1) (four) (i, j) pixel system is not good, then it is divided into the following selection methods: Dexirui (i, j) pixel brightness value is at The first level (ie, the darkest), and the (U). The complex complexity value of the array is at the 帛Y level (ie, the most complex:)", the picture is the most difficult to distinguish, select the correct gray level (x+ not, (4) The amplitude of the order (...-1) is the largest, making the face easy to distinguish. The brightness value of the right pure impurity is at the i-th level, and the (4) image, the slave gray scale (X + Υ-2), only 5 Less than the amplitude of the corrected gray level (χ+γ—”. The value of the (i,j) pixel is selected for the level of the (i,j) pixel, and the brightness value of the (i,j)th pixel is at the top of the array. The face complexity value is in the first X. And the (i, j) pixel is selected to correct the gray level. If the (i, j) pixel brightness value is at the second level, the complexity of the image in the array is At the γ level (X+ Y — 2). If the luminance value of the (i, j)th pixel is at the 2nd level ^ The complexity value at the top of the array is at the (γ and (1, j) pixel gray level (X+Y-3). For class H, the correction level is selected, and the (i, j) pixel brightness value of the (u)th pixel is at the 2 14 200849175 at the face complexity level of the array (X — 1) Then select the correct gray scale push 'if the (i, j) pixel brightness is bright), and the (i, j) pixel is in the array #, the disci temple level (ie the most ^ isp dry column screen If the noisy value is at the third level (ie, the interval is early), then the corrected gray level 2 is selected. As shown in Fig. 5, the amplitude of the second seek 2 is only larger than the amplitude of the corrected gray scale 。. X positive fire level Compared with the prior art, the liquid crystal display converter 25 can set the gray scale V (m) of the 衣+ l,i,j) is converted into /, the pixel of each pixel of the pixel grayscale pixel array of gold surface complex 5 ^ gray level ' and according to the brightness value of each pixel and L can (four) service smear problem, and Can effectively overcome: positive gray:,, and & positive grayscale corresponding pixel display brightness value can be # is equal to the silly grayscale V (m + 1 i η斟 Shi Xi丄ώ resistance) from control to seek image Decrease the rhyme. Yang, value, can also avoid the display of the LCD panel 26 driven by the overall brightness method of the screen == set 2〇 and drive the crystal display panel drive device 2{} two cars can also be 3 columns 4 rows or 24 columns 2 for calculation = / then the face complexity level board 26, "士: noisy degree value; when the liquid crystal display surface two: 724 is used to calculate the difference between the duck face and the face complexity value Presenting the specific ==, the present invention has indeed met the requirements of the invention patent, and the law is according to the law:: claim μ. However, the above is only the preferred embodiment of the present invention. The scope of the present invention is not limited to the above-mentioned embodiments, and the equivalent modifications or variations made by the artist in accordance with the spirit of the present invention, Bai Yinghan are within the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a prior art liquid crystal display panel driving device. FIG. 2 is a graph showing brightness values corresponding to two sets of corrected gray scales. FIG. 3 is a preferred embodiment of the liquid crystal display panel driving device of the present invention. Fig. 4 is a correspondence table of comparison results, brightness values, kneading complexity values and multiple sets of correction orders. Fig. 5 is a graph of brightness values corresponding to multiple sets of corrected gray scales. LCD panel driver mounted comparator face complexity calculator LCD panel 20 frame memory 21 22 brightness detector 23 24 gray scale converter 25 26 16