TWI301260B - Driving apparatus and method for a tft lcd through multi gray-level voltages - Google Patents

Description

1301260 五、發明說明（1) 【發明所屬之技術領域】 本發明是有關於一種液晶顯示器（liquid crystal display ; LCD)的結構與製造方法，且特別是有關於一種 利用多重灰階參考電壓來驅動薄膜電晶體液晶顯示器 (thin film transistor LCD ； TFT LCD)之裝置與方法。 【先前技術】 長久以來’液晶顯示器早已廣泛的應用於電子手錶、計算 機等數位化的電子產品上。隨著薄膜電晶體—液晶顯示器 技術之持續的發展與進步，且由於其具有體積小、重量 輕、驅動電壓低以及消耗功率低之優點，而被大量的應用 於筆記型電腦、個人數位化處理系統以及彩色電視上，而 逐漸地取代傳統逐漸取代陰極射線管（Cath〇de Ray Tube ; CRT)成為顯示器的主流。 其中薄膜電晶體液晶顯示器（thin film transist〇r LCD ; TF_T KD)尤為液晶顯示器中之佼佼者。薄膜電晶體 液晶顯不器是利用施加於兩片基板上之不同電壓，造成一 外加電場施加於夾在兩片基板中之液晶材料上。以控制外 力口電場2小來控制液晶之排列方式，並以此來決定光線 通過兩片基板之穿透率來形成所需畫面。 ί參ί ’第1圖係繪示習知薄膜電晶體液晶顯示器之 :不1 ^早70的等效電路。在第丨圖中，薄膜電晶體1 〇 〇具 μ 源極s與—沒極d。閘極g與閘極临相接， 源和s /、貝枓線Dm相接，汲極d與晝素電極p相接。晝素電1301260 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a structure and a manufacturing method of a liquid crystal display (LCD), and more particularly to driving with multiple gray scale reference voltages. A device and method for a thin film transistor liquid crystal display (TFT LCD). [Prior Art] Liquid crystal displays have long been widely used in digital electronic products such as electronic watches and computers. With the continuous development and advancement of thin film transistor-liquid crystal display technology, and due to its small size, light weight, low driving voltage and low power consumption, it is widely used in notebook computers and personal digital processing. System and color TV, and gradually replaced the traditional replacement of cathode ray tube (Cath〇de Ray Tube; CRT) into the mainstream of the display. Among them, thin film transist〇 LCD (TF_T KD) is especially the best among liquid crystal displays. Thin Film Transistor A liquid crystal display utilizes different voltages applied to two substrates to cause an applied electric field to be applied to the liquid crystal material sandwiched between the two substrates. The arrangement of the liquid crystals is controlled by controlling the electric field of the external force to be small, and thereby determining the transmittance of the light through the two substrates to form a desired picture.参 ί ί ” ” 1 is a conventional thin film transistor liquid crystal display: not 1 ^ early 70 equivalent circuit. In the second diagram, the thin film transistor 1 〇 μ has a source s and a immersion d. The gate g and the gate are in contact with each other, and the source is connected to the s /, the Bellows line Dm, and the drain d is connected to the halogen electrode p. Alizarin

五、發明說明（2) 極P與隔著液晶層之共通電極c〇m形成液晶電容Clc，且晝 素電極P與閘極線Gn-Ι之二者重疊部分形成儲存電容“七。 此外’閘極g與汲極d在製造過程中若二者沒有對準，二者 之重疊部分亦會產生寄生電容Cgd。 薄膜電晶體液晶顯示器之操作是先供給閘極線Gn「開」之 =極驅動電壓，以打開薄膜電晶體1〇〇。資料線如則供給 資料驅動電壓（V d )給源極s與汲極d，而且資料驅動電壓亦 透過汲極d供給給晝素電極P (晝素電壓Vp)，使得畫素電 極P與，通電極Com (共通電壓Vc⑽）之間因為電壓^而形 成電場、。假如持續對液晶層施以同方向之外加電場，液晶 層内之液曰曰材料可能會因此損壞。所以資料驅動電壓會在 相對於共通電極的正負電壓之間反轉，如第2圖中之Μ在 V/om之上下間反轉，以避免發生上述問題。 。月5考第2圖’其係繪不薄膜電晶體陣列距離閘極驅動端 ^弟^電晶體源極與第η個電晶體之晝素電極之畫素電 P h到寄生f容Cgd之影響而扭曲之狀況。在第2圖 ，電£，持·供應著，所以理論上Vd糾應還維持一固定 值。但=因為寄生電容Vgd之影響，使得閑極驅動電壓在 關」日τ ’Vp亦會下降，避炎 ^ %為反彈電壓（kickback voltage)，其下降幅度如第（1)式所示： ΔΥρ = VgX Cgd/(Clc + Cst + Cgd)(i ) 1301260 五、發明說明（3) 而且不管供給之資料驅動電壓為正 因為Vg處於「關」的狀態而下降。所『為負，VP值總是會 之上下的面積相等，以使液晶分子=^ 了維持Vd在Vcom 相等，Vcom之值通常必須往下調整_ 1又到的正負電場值 又因在薄膜電晶體陣列的閘極訊號傳^線 他種種因素，使得訊號在傳遞過程中I $ ^抗特性與其 如第3圖所示，其係緣示面板内：極失爻’ 中逐漸哀減與失真之示意圖。在第3圖中， ^V. DESCRIPTION OF THE INVENTION (2) The pole P forms a liquid crystal capacitor Clc with a common electrode c〇m interposed therebetween, and the overlapping portion of the pixel electrode P and the gate line Gn-Ι forms a storage capacitor "seven. If the gate g and the drain d are not aligned during the manufacturing process, the overlapping portion will also generate a parasitic capacitance Cgd. The operation of the thin film transistor liquid crystal display is to supply the gate line Gn "on" = Drive the voltage to open the thin film transistor 1〇〇. If the data line supplies the data driving voltage (V d ) to the source s and the drain d, and the data driving voltage is also supplied to the halogen electrode P (the halogen voltage Vp) through the drain d, so that the pixel electrode P and the pass An electric field is formed between the electrodes Com (common voltage Vc(10)) due to the voltage ^. If the electric field is applied to the liquid crystal layer in the same direction, the liquid helium material in the liquid crystal layer may be damaged. Therefore, the data driving voltage is inverted between the positive and negative voltages with respect to the common electrode, and is reversed between V/om and the top in Fig. 2 to avoid the above problem. . The 5th picture of the 5th test of the month 5 is the effect of the non-thin film transistor array from the gate drive end ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ And the situation of distortion. In Fig. 2, electricity is charged and supplied, so theoretically Vd correction still maintains a fixed value. However, because of the influence of the parasitic capacitance Vgd, the idler driving voltage will also decrease on the off day τ 'Vp, and the avoidance is %kickback voltage, and the falling amplitude is as shown in the equation (1): ΔΥρ = VgX Cgd / (Clc + Cst + Cgd) (i ) 1301260 V. Description of the invention (3) And the voltage of the supplied data is positive because Vg is in the "off" state. "Below, the VP value will always be equal to the area above, so that the liquid crystal molecules = ^ to maintain Vd equal to Vcom, the value of Vcom usually has to be adjusted downwards _ 1 again and again the positive and negative electric field values due to the thin film electricity The gate signal of the crystal array transmits various factors, so that the I$^ resistance characteristic of the signal during transmission is as shown in Fig. 3, and the edge of the panel is faintly reduced and distorted. schematic diagram. In Figure 3, ^

Vg之開」〆、關」之間的電壓差為△ Vg，在傳遞至第η 個電晶體時，閑極之電壓差已經衰減成AVgn，同時閘極 驅動訊號之形狀也已經變形了。 從第3圖可知，越遠離閘極驅動端，閘極驅動訊號之電壓 差AVg越小，亦即z\Vgi大於AVgn。因此由第（1)式可 知，越退離閘極驅動端，△ Vp之值亦越小，亦即△ Vp 1小 於△ Vpn，所以其所需之Vcom值越大，亦即Vcom —η大於 Vcom一1。然而一般液晶顯示器面板上之所有畫素會共同使 用同一大片之共通電極，亦即所有晝素之共通電極之^⑽ 皆為相等，因此將使得面板上不同區域之Vp值不一樣，造 成畫面閃燦的問題。 顯均 晶不 液壓 體電 晶素 膜上 薄板 種面 一為 供因 提決 在解 是來。 就，題 1 法問 之方的 的與爍 目置閃 1的裝面 容明動畫 内發驅成 明本的造 發此器而 t因示等 1301260 五 發明說明（4) 根 據本發明之上述目的， 置。此驅動裝置至少有平液晶顯示器之驅動裝 驅動n，這些閘極驅動 =數列閘極線以及多個㈣ 閘極線。另外有平行 J供間極驅動電壓—'給上述之 器，這些資料線與上述之料線以及多個資料驅動 列。上述之資料驅動:、線互相垂直交又以形成一陣 之些資料線。還有多個;一提供資料驅動電塵給上述 體分別位於上述之閘極=體與畫素電極，薄膜電晶 極位於上述陣列之多個方：：料線之交又點上，而畫素電 ::二至少有二個灰階參考電二：由】3電晶體與資料線 考電壓分別給該些資料驅，供以、二個灰階參 出之育料驅動電壓之大态，凋整5亥些貧料驅動器所輪 晝素電壓相等。 、’以使位於不同行之晝素電極之 根據本發明一較佳實 :於等於上述之資料線：數；述之灰階參考電壓源之數目 本發明亦提供一種液a _目。 士。先輪入至少二灰；.夂：器之畫素電極的電壓調整方 貪料驅動器參考上二電壓給至少二資料驅動器， 不同之資料驅動電壓,ΐ;參考電壓來分別--輪出大小 些資料驅動電壓傳輪仏‘;後經由相對應之薄膜電晶體將該 整晝素電極之晝素電^ ν二行之多個畫素電極，藉此調 相等。 I’使不同行之畫素電極之晝素電壓 根據本發明一較佳竇 於等於資料驅動器之:上述之灰階參考電壓之數目小 1301260The voltage difference between the opening and closing of Vg is ΔVg. When passing to the nth transistor, the voltage difference of the idle electrode has been attenuated to AVgn, and the shape of the gate driving signal has also been deformed. As can be seen from Fig. 3, the farther away from the gate driving end, the smaller the voltage difference AVg of the gate driving signal, that is, z\Vgi is larger than AVgn. Therefore, it can be known from the formula (1) that the smaller the value of ΔVp is, the smaller the value of ΔVp 1 is smaller than ΔVpn, so that the larger the Vcom value required, that is, Vcom-η is larger than Vcom-1. However, all the pixels on the panel of the LCD will use the common electrode of the same large piece together, that is, the common electrodes of all the pixels are equal, so the Vp values of different areas on the panel will be different, causing the screen to flash. Can't ask. The average crystal is not hydraulic, the electro-crystalline crystal film, the thin plate, the seed surface, the cause, the solution, the solution. Therefore, the question of the method of the method of the side of the method and the flashing of the flashing of the face of the animation, the animation is driven into the Ming dynasty, and the instrument is represented by et al. 1301260. 5 invention description (4) According to the above object of the present invention , set. The driver has at least a flat LCD display driver n, which is driven by a number of gate lines and a plurality of (four) gate lines. In addition, there are parallel J-to-electrode driving voltages - 'to the above, these data lines and the above-mentioned material lines and multiple data driving columns. The above information is driven: the lines are perpendicular to each other to form a series of data lines. There are a plurality of; a data-driven electric dust is provided to the body respectively at the gate electrode and the pixel electrode, and the film electrode is located at a plurality of sides of the array: the intersection of the material line, and the drawing Prime electricity:: Two at least two gray-scale reference electricity two: from the 3 transistor and the data line test voltage respectively to the data drive, for the two gray-scale access to the feed drive voltage state, The ruthenium voltage of the leaner drivers is equal. According to the present invention, a preferred embodiment of the present invention provides a liquid a _ mesh. Shi. First turn in at least two ash; 夂: the voltage of the pixel of the device adjusts the greedy driver reference to the second voltage to at least two data drivers, different data drive voltage, ΐ; reference voltage to separate - turn out the size The data drives the voltage transfer 仏'; and then the plurality of pixel electrodes of the two elements of the multiplexer electrode are tuned to each other via the corresponding thin film transistor. I's a pixel voltage of different rows of pixel electrodes. According to the present invention, a preferred sinus is equal to the data driver: the number of gray scale reference voltages mentioned above is small 1301260

由上述可知，本發明較佳實 資料驅動器可以輸出多重資 壓之大小，使不同行之畫素 然面板只有一個共通電極， 施例利用多重灰階參考電壓讓 料驅動電壓，藉以調整晝素電 電極之晝素電壓相等。所以雖 只能提供一個共通電壓，但是 只需要調整共通電壓使晝素電壓在共通電壓上下的積分面 積相同，即可讓液晶顯示器能顯示穩定的畫面，不再閃 爍。 【實施方式】 述之弟2圖了知，因為距離閘極驅動器越遠之電晶體 ;二素之反彈電壓Δνρ越小，因此所需之共通電極之共通 電avc〇m會越大’如此才能改善畫面閃爍之問題。缺而一 般液晶面板只能提供一個固 + 因此，在 驅動電壓vd改變極性之灸考電：om叫乍為資料 城2、％曰八I & rf心 > 考電位，使付位於面板上部分區 Ί夜日"子所感X之正負電場大小並不 面板上之部分區域會有晝面閃爍的問題。 ，據本發明一較佳實施例，利用多組灰 考電壓來調整資料驅動電壓的大小，“改善面板:呈 面閃爍的問題。 板上主現旦 先依據晝素電極的反彈番 面板區分成數個區域，^ P之A小來將液晶顯示器之 壓ΔνΡ十分接近。然後區域中之畫素電極的反彈電 之大小來外加大小不同又#固區域之畫素反彈電壓AVp 示。上述之灰階參考電壓：灰階參考電壓，如第4圖所 壓的數目’可依據所需之解析度或It can be seen from the above that the preferred data driver of the present invention can output multiple voltages, so that different rows of the panel can have only one common electrode, and the embodiment uses multiple gray scale reference voltages to drive the voltage to adjust the voltage. The voltage of the electrodes is equal. Therefore, although only one common voltage can be provided, it is only necessary to adjust the common voltage so that the integral area of the pixel voltage above and below the common voltage is the same, so that the liquid crystal display can display a stable picture without flashing. [Embodiment] It is known that the farther away from the gate driver is the transistor; the smaller the rebound voltage Δνρ of the two elements, the greater the common avc〇m of the common electrode required. Improve the problem of flickering the screen. Lack of general LCD panel can only provide a solid + Therefore, in the drive voltage vd change the polarity of the moxibustion test: om called 资料 for the data city 2,% 曰8 I & rf heart > test potential, so that the payment is on the panel In some areas, the night and night, the sub-feeling of the positive and negative electric field of the X is not a problem of flashing in some areas on the panel. According to a preferred embodiment of the present invention, multiple sets of gray test voltages are used to adjust the magnitude of the data driving voltage, and “improving the panel: the problem of flickering on the surface. The main board is first divided into several numbers according to the rebound panel of the halogen electrode. In the area, the A of the P is small to bring the pressure of the liquid crystal display ΔνΡ very close. Then the size of the rebounding electric current of the pixel electrode in the area is added to the pixel rebound voltage AVp of the different size and the solid area. Reference voltage: grayscale reference voltage, as the number pressed in Figure 4' can be based on the required resolution or

1301260 五、發明說明（6) ίϋΐ定之。所需之解析度或晝質越高，則所需之灰階 參考電壓的數目越多。 二二’’、、第4圖，其繪示依照本發明_較佳實施例的一種利 =夕，灰階參考電壓來調整資料驅動電壓大小之電路示意 :矢厂圖中，將面板區分成三個區域，每個區域之灰 =多考電壓分別為Vrl、^2與矸3。利用直流電（Dc)產生 —之^1、Vr2與”3之灰階參考電壓給面板上方之 S3&、S4-S6與S7-S8資料驅動器，以供其產生大小不一 =之^料驅動電壓Vdl、Vd2、Vd3。然後這#Vdi、vd2、 資料驅動電壓在供給至其相對應之畫素電極之後，會 ^面板十之所有畫素電極之畫素電壓^約略相等，以使其 卜用於單一共通電極之單一共通電壓Vcom。 :亦同扦參考第5圖，其係繪示依據本發明一較佳實施例 在液晶顯示器面板不同區域分別加上不同的灰階參考電壓 對旦2電壓VP與反彈電壓Δνρ之影響示意圖。若第4圖中 1貝料驅動态之位置最靠近閘極驅動端，則因其畫素電 ΐ的反彈電壓mp1最大，所以其所需之m會最大了亦即 八所需之灰階參考電壓Vrl為最大，以補償反彈電壓Δνρΐ =造成之晝素電壓νΡΐή^差，#第5圖所示。相對地，在 苐4圖中，因為S8資料驅動器之位置最遠離閘極驅動端， 晝素電極的反彈電壓Δνρ8最小，則所需輸入之㈣ _ :小，亦即其所需之灰階參考電壓為最小，如第5圖 所示。 上述之Vdl與Vd3值之差異會約略等於^^丨與△ Vp8值之差1301260 V. Description of invention (6) ϋΐ ϋΐ 。. The higher the resolution or quality required, the greater the number of grayscale reference voltages required. 22'', FIG. 4, which shows a circuit diagram for adjusting the magnitude of the data driving voltage according to a preferred embodiment of the present invention. In the factory diagram, the panel is divided into Three areas, each area of gray = multi-test voltage is Vrl, ^2 and 矸3. Use the direct current (Dc) to generate the grayscale reference voltage of ^1, Vr2 and "3" to the S3&, S4-S6 and S7-S8 data drivers above the panel for the generation of the material driving voltage of different sizes = Vdl, Vd2, Vd3. Then the #Vdi, vd2, data driving voltage is supplied to its corresponding pixel electrode, and the pixel voltages of all the pixel electrodes of the panel 10 are approximately equal to each other. A single common voltage Vcom of a single common electrode: also referred to FIG. 5, which is a diagram showing different gray scale reference voltages and voltages applied to different regions of the liquid crystal display panel according to a preferred embodiment of the present invention. Schematic diagram of the effect of VP and bounce voltage Δνρ. If the position of the driving state of the 1st material in Fig. 4 is closest to the gate driving end, the b m of the pixel is the largest, so the m required is the largest. That is, the required gray-scale reference voltage Vrl is the maximum, to compensate for the buckling voltage Δνρΐ = the resulting pixel voltage νΡΐή^ difference, #5 is shown. In contrast, in Figure 4, because of the S8 data driver Position farthest from the gate drive end, 昼素The minimum bounce voltage Δνρ8 is the smallest, then the required input (4) _ : is small, that is, the required gray-scale reference voltage is the minimum, as shown in Figure 5. The difference between the above Vdl and Vd3 values is approximately equal to ^^ The difference between 丨 and △ Vp8

第10頁 1301260 五、發明說明（7) 異a，使面板上每個畫素電壓在經過補償後，其大小會約略 相等，亦即Vpl約略等於VP8，以解決液晶顯示器面板之晝 面閃爍的問題。 由上述本發明較佳實施例可知，其先利用多個大小不同之 灰階參考電壓Vr 1輸入每個畫素之資料驅動器，使其產生 大小不同之資料驅動電壓V d i以輸入至每個晝素之薄膜電 晶體之源極、汲極以及畫素電極。當閘極驅動電壓為 「關」時，不同區域的畫素電壓隨之而生的反彈電壓^ Vpi雖然不同，但是透過灰階參考電壓Vri的調整過後，使 各個Vdi的大小差異值等於各個么”土的大小差異值，使各 個畫素電壓Vpi之大小相等或約略相等。戶斤以雖然面板只 有一個共通電極，只能提供一個共通電壓Vc〇m，但是透過 iv述之：f能^生大小相等之晝素電壓Vpi ’則只需要調° 整VCOm使”1在以〇„1上下的積分面積相同，即可讓液晶 不器能顯示穩定的晝面，不再閃燦。 =然本發明已以一較佳實施例揭露如±，然其並非用 定本發明’任何熟習此技藝者，在不脫離本發 2 範圍内，當可作各種之更動與潤飾， ： 圍當視後附之申請專利範圍所界定者為準。x a之保遵犯Page 10 1301260 V. Invention Description (7) Different a, so that after the pixel voltage on the panel is compensated, the size will be approximately equal, that is, Vpl is approximately equal to VP8, to solve the flashing of the LCD panel. problem. According to the preferred embodiment of the present invention, the data driver of each pixel is input by using a plurality of gray-scale reference voltages Vr1 of different sizes to generate data driving voltages V di of different sizes for input to each of the pixels. The source, the drain and the pixel electrode of the thin film transistor. When the gate driving voltage is "off", the rebound voltage of the pixel voltage in different regions is different, but after the adjustment of the gray-scale reference voltage Vri, the difference value of each Vdi is equal to each other. "The difference in size of the soil makes the magnitudes of the individual pixel voltages Vpi equal or about equal. The household can only provide a common voltage Vc〇m although the panel has only one common electrode, but it can be described by iv: The equal-sized elemental voltage Vpi' only needs to be adjusted to the full VCOm so that the integral area of the upper and lower sides of the "1" is the same, so that the liquid crystal can not display a stable surface, no longer flashing. The invention has been disclosed in a preferred embodiment such as ±, but it is not intended to be used by any of the skilled artisans, and various modifications and refinements may be made without departing from the scope of the present invention. The definition of the scope of patent application shall prevail.

1301260 圖式簡單說明 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、和優點能更明顯易 懂，下文特舉一較佳實施例，並配合所附圖式，作詳細說 明如下： 第1圖是係繪示習知薄膜電晶體液晶顯示器之顯示畫素單 元的等效電路。 第2圖係繪示薄膜電晶體陣列距離閘極驅動端之第一個電 晶體源極與第η個電晶體之晝素電極之電壓V p因受到寄生 電容Cgd之影響而扭曲之狀況。 第3圖係繪示面板内閘極驅動訊號在傳遞過程中逐漸衰減 與失真之示意圖。 第4圖係繪示依照本發明一較佳實施例的一種利用多組灰 階參考電壓來調整資料驅動電壓大小之電路示意圖。 第5圖係繪示依據本發明一較佳實施例在液晶顯示器面板 不同區域分別加上不同的灰階參考電壓對畫素電壓V p與反 彈電壓△ V p之影響示意圖。 【元件代表符號簡單說明】 g :閘極 d :汲極 G η、G η - 1 :閘極線 C 〇 m :共通電極 C s t :儲存電容 1 0 0 :薄膜電晶體 s :源極 P :晝素電極 D m、D m + 1 :資料線 C 1 c ·液晶電容BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent and understood. As follows: Fig. 1 is an equivalent circuit showing a display pixel unit of a conventional thin film transistor liquid crystal display. Fig. 2 is a view showing a state in which the voltage V p of the thin film transistor array from the first transistor source of the gate driving terminal and the pixel electrode of the nth transistor is distorted by the parasitic capacitance Cgd. Figure 3 is a schematic diagram showing the gradual attenuation and distortion of the gate drive signal in the panel during transmission. Figure 4 is a circuit diagram showing the use of multiple sets of gray scale reference voltages to adjust the magnitude of the data drive voltage in accordance with a preferred embodiment of the present invention. Figure 5 is a diagram showing the effect of adding different gray scale reference voltages on the pixel voltage Vp and the rebound voltage ΔVp in different regions of the liquid crystal display panel according to a preferred embodiment of the present invention. [Simplified description of the component symbol] g: gate d: drain G η, G η - 1 : gate line C 〇m : common electrode C st : storage capacitor 1 0 0 : thin film transistor s : source P: Alizarin electrode D m, D m + 1 : data line C 1 c · liquid crystal capacitor

•第12頁 1301260 圖式簡單說明 Cgd :寄生電容 Vp:畫素電壓 △ Vp :反彈電壓 Vrl - Vr3 :灰階參考電壓• Page 12 1301260 Schematic description Cgd: parasitic capacitance Vp: pixel voltage △ Vp: bounce voltage Vrl - Vr3: gray scale reference voltage

壓壓 JBU 區 區 馬 馬 料極 資閘 d § V VPressing the JBU area, the horses and the material gates d § V V

11 S11 S

8 S 器 區 馬 料 資8 S unit area horse material

第13頁Page 13

Claims (1)

1301260 96·ί〇· ig _案號93109657_年月曰 修正_ 六、申請專利範圍 1 . 一種液晶顯示器之驅動裝置，其至少包含： 平行之複數列閘極線； 複數個閘極驅動器，提供複數個閘極驅動電壓——給該些 閘極線； 平行之複數行資料線，該些資料線與該些閘極線互相垂直 交叉以形成一陣列； 複數個資料驅動器，提供複數個資料驅動電壓——給該些 資料線，該些資料驅動器分屬於至少二組資料驅動組； 複數個薄膜電晶體，分別位於該些閘極線與該些資料線之 交叉點上，每一該些薄膜電晶體具有一閘極、一源極與一 汲極，每一列之該些閘極分別與該些閘極驅動器相接，每 一行之該些源極分別與該些資料線相接； 複數個晝素電極，分別位於該陣列之複數個方格中，該些 晝素電極分別與該些汲極--相接；以及 至少二灰階參考電壓源，提供至少二灰階參考電壓分別給 該些資料驅動組，調整分屬該些資料驅動器所輸出之資料 驅動電壓之大小，以使不同行之該些畫素電極之晝素電壓 相等，其中越遠離該些閘極驅動器之該些資料驅動器所接 收之該灰階參考電壓越小。 2. 如申請專利範圍第1項所述之液晶顯示器驅動裝置，其 中該些資料驅動組之數目小於等於該些資料線之數目。 3. —種液晶顯示器之晝素電極的電壓調整方法，其至少包1301260 96·ί〇·ig _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ a plurality of gate drive voltages - for the gate lines; parallel plurality of rows of data lines, the data lines and the gate lines perpendicularly intersect each other to form an array; a plurality of data drivers providing a plurality of data drivers Voltage - for the data lines, the data drivers are divided into at least two sets of data driving groups; a plurality of thin film transistors are respectively located at intersections of the gate lines and the data lines, each of the films The transistor has a gate, a source and a drain, and the gates of each column are respectively connected to the gate drivers, and the sources of each row are respectively connected to the data lines; The halogen electrodes are respectively located in a plurality of squares of the array, wherein the halogen electrodes are respectively connected to the drain electrodes; and at least two gray scale reference voltage sources provide at least two gray scale reference powers Pressing the data driving groups respectively to adjust the magnitudes of the data driving voltages outputted by the data drivers so that the pixel voltages of the pixel electrodes of different rows are equal, and the farther away from the gate drivers The gray scale reference voltage received by the data drivers is smaller. 2. The liquid crystal display driving device of claim 1, wherein the number of the data driving groups is less than or equal to the number of the data lines. 3. A method for adjusting a voltage of a halogen electrode of a liquid crystal display, which comprises at least 第14頁 1301260 案號 93109657 96.10. ί 6 年月曰 修正 六、申請專利範圍 含·· 瑜入至少二灰階參考電壓給至少二資料驅動器，其中越遠 離一閘極驅動器之該些資料驅動器所接收之該些灰階參考 電壓越小；以及 該些資料驅動器參考該些灰階參考電壓來分別——輸出大 不同之資料驅動電壓，經由相對應之薄膜電晶體將該些 資料驅動電壓傳輸給至少二行之複數個晝素電極，藉此調 整該些畫素電極之晝素電壓，使不同行之該些晝素電極之 畫素電壓相等。 4.如申請專利範圍第3項所述之液晶顯示器之晝素電極的 電壓調整方法，該些灰階參考電壓之數目小於等於該些資 料驅動器之數目。 a 第15頁Page 14 1301260 Case No. 93109657 96.10. 6 6 years 曰 曰 六 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Receiving the gray scale reference voltages is smaller; and the data drivers refer to the gray scale reference voltages to respectively output different data driving voltages, and transmit the data driving voltages to the data driving voltages through the corresponding thin film transistors At least two rows of a plurality of halogen electrodes, thereby adjusting the pixel voltage of the pixel electrodes, so that the pixel voltages of the pixels of the different rows are equal. 4. The method of adjusting a voltage of a halogen electrode of a liquid crystal display according to claim 3, wherein the number of the gray scale reference voltages is less than or equal to the number of the data drivers. a Page 15