200847113 χ Λ T JL ^ w / r-027 24077twf.doc/p 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種面板顯示裝置的驅動技術，且特 別是有關於一種面板顯示裝置的源極驅動器。 【先前技術】 以晝素陣列來顯示一影像的方式已很普遍，其配合整 體的組合後就是一般的面板顯示裝置。一般而言，其需要 源極驅動器以及閘極驅動器從二個陣列方向，依時序選擇 出畫素陣列中的所要晝素，以輸入對應的晝素資料，達到 驅動晝素陣列的作用，以顯示由晝素構成的一影像。換句 話說，影像的顯示效能與源極驅動器以及閘極驅動器的驅 動機制有很大的關係。 現有的源極驅動器為了降低功率消耗，皆使用電荷分 旱的方式來推動面板，然而在液晶面板大型化的趨勢下這 個方法己經到了極限。 傳統的源極驅動器為了降低源極驅動器本身的功率 消耗，會使用電荷分享技術以節省晝素充電時間，會將晝 素分成偶晝素與奇晝素，交替地使用正電壓與負電壓來驅 動晝素。圖1纷示傳統的源極驅動器的一部分的電路方塊 示意圖。參閱圖1，為了提升色彩品質，一般會有Gamma 電阻分壓器（Gamma Resistor Voltage Divider)100 產生 Gamma修正電壓。Gamma修正電壓與影像數位資料 (DATA—ODD與DATA—EVEN)-起輸入到對應的數位類 比轉換器102、104(DAC1、DAC2)。數位類比轉換器1〇2、 5 24077twf.doc/p 2008471137 -------7-027 =如疋M位兀的數位資料。為了達到電荷分享的效 對應奇晝素與偶晝素只輸出正極性電位，而 立2對應偶晝素與奇晝素只輪出負極性電位。正極性電 位思指大於源極驅動器輪出電壓範圍的中間值之準位，負 極性電位意指小於源極驅動器輸出電壓範圍内的準位。、 斤類比輪出部份是由對應的運算放大器（〇1>1)忉6以及200847113 χ Λ T JL ^ w / r-027 24077twf.doc/p IX. Description of the Invention: [Technical Field] The present invention relates to a driving technology of a panel display device, and more particularly to a panel display device Source drive. [Prior Art] It has been common to display an image with a pixel array, which is a general panel display device in combination with the whole. In general, it requires the source driver and the gate driver to select the desired elements in the pixel array from the two array directions in order to input the corresponding pixel data to drive the pixel array to display An image made up of alizarins. In other words, the display performance of the image has a lot to do with the source driver and the drive mechanism of the gate driver. In order to reduce power consumption, the existing source drivers use a charge-drifting method to push the panel. However, this method has reached the limit in the trend of large-scale liquid crystal panels. In order to reduce the power consumption of the source driver itself, the traditional source driver uses charge sharing technology to save the pixel charging time. The pixel is divided into even halogen and odd crystal, and the positive and negative voltages are alternately driven. Russell. Figure 1 shows a schematic diagram of a circuit block of a portion of a conventional source driver. Referring to Figure 1, in order to improve the color quality, a Gamma Resistor Voltage Divider 100 is generally used to generate a Gamma correction voltage. The Gamma correction voltage and image digital data (DATA_ODD and DATA-EVEN) are input to the corresponding digital analog converters 102, 104 (DAC1, DAC2). Digital analog converters 1〇2, 5 24077twf.doc/p 2008471137 -------7-027 = Digital data such as 疋M bits. In order to achieve the effect of charge sharing, the odd-nosed and the even-orders only output the positive potential, while the vertical 2 corresponds to the even-odd potentials of the even and the alkaloids. The positive polarity potential is greater than the intermediate value of the source driver's turn-off voltage range, and the negative polarity potential means less than the level within the source driver output voltage range. The analogy of the analogy is based on the corresponding operational amplifier (〇1>1)忉6 and
大器(OP2) 1G8將DAC1與DAC2輸出的類比訊號 刀別放大，以驅動對應的晝素。傳統的運算放大器1〇6與 108是分別操作，其操作的偏壓(bias)是由高電位^ 接地電位GNDA所賴，赵—㈣電流：。接著利用輸 出開關110〜116將放大後的訊號輸出到對應的晝素。晝素 從電路特性來看是由串聯的電阻與電容所構成的:帝 路。另外，電荷分享開關118用於當一個圖框(imageframe) 的晝素顯示完畢後，先將相鄰二畫素的電容串聯達到電荷 共用。如此節省下一圖框的晝素資料的充電時間，其機制 為-般習知此技藝者可了解，於此不予詳述，而後續圖3 的時序圖會再說明。 、 傳統的源極驅動器為了降低源極驅動器本身的功率 /肖耗，其设計配合使用電荷分享技術，且儘量提升運算放 大器輸出級效率。但是要注意的是，其兩個運算放大器;ρι 和OP2的電源分別接至高電壓準位vdda和地電壓準位 GNDA。因為兩個運算放大器接到的電源均相同，所以電 流消耗也相同，若兩個運算放大器的電流消耗均為j^ 兩個運异放大為的總功率消耗為2X/x(m〇^ —^规⑷，也就是 6 24077twf.doc/p 2008471137Λ9 ^,. ν 7-027 說對於一個運算放大器就需要耗Jx(Kim4-GMX4)的功率。 然而，在面板大型化的趨勢下這個方法己經到了極 限’勢必要採用新的源極驅動器架構，以進一步降低功率 消耗。 一 【發明内容】 本發明提供一種源極驅動器，藉由共用偏壓電流的運 异放大器架構，將相鄰兩通道的運算放大器予以疊接，減 φ 少直流偏壓電流，以降低功率消耗，另外也可以提升操作 速度以及元件無需採用耐高壓的結構設計。 ” 本發明提供一種面板顯示裝置，包括源極驅動哭藉由 共用偏壓電流的運算放大器架構，以提升面板顯示裝^的 效能。 本考X明長：出一種源極驅動器，包括一第一運算放大 器，接收一第一晝素的一第一類比訊號，以輸出一^一放 大訊號。一第二運算放大器接收一第二晝素的—第二類比 訊號，以輸出一第二放大訊號。其中、該第一運算放大器 _ 與該第二運算放大器藉由一節點而串接於一高電位與一地 ^位之間，得到—操作電流。—次電壓源連接於該節點以 ，供-次電位’以維持該操作電流。—開關電路，以將該 第:放大訊號與第二放大訊號輸出到對應的該第一晝素g 該第二晝素。 一 /…、 —依照本發明的較佳實施例所述之源極驅動器，例 第-運算放大器有-第一電阻，使操作於該高電位盘該= 電位之間有該操作電流，且該第二運算放大器有一第二+ 7 -7-027 24077twf.d〇c/p 2〇〇847l13 P且’ 該次電位與該地電位之間有該操作電流。 4 “、、發明的較佳實施例所述之源極驅動g 點電位。 疋忒回包位與該地電位之間的—中間 依本發明的較佳實施 弟—晝素無第二畫素包括触’例如該 二弟:f位類比轉換器與-第二數位』轉換ί ; =:::”_收該第-晝素的-第；Ϊ 該第3=::類比訊號。該第二數位類比轉換器接收 :、弟一數位貧料以轉換成該第二類比訊於。 义Α本發明的較佳實施例所述之源極驅動哭。二 開關魏包括—電荷分享開關。雜例如該 次電佳實施例所述之源極驅動器，例如該 部極驅動器的-内部電路產生，或是由外 由— ί::，提出-種面板顯示裝置，包括-顯示區域， 陣列1:12成：多個源極驅動器，用以驅動該晝素 ?驅動斋，用以驅動該晝素陣列以及一控制 C些源極驅動器與閘極驅動器，以驅動該晝素 ’/、中母一該些源極驅動器包括： 比訊號 y第一運算放大器，接收一第一晝素的一第一類 以輪出—第一放大訊號； 第二 第二類 一第二運算放大器，接收 8 200847113 /-027 24077tw£doc/p =:=t放大訊號，其中該第-運算放大器 糟由—節點而串接於—高電位盘-地 龟位之間，得到一操作電流； /、 一次電壓源’連接於該節點次 維持該操作電流；以及 開關電路 以將該弟一玫大訊號與第二 號輸出到對應的該第一晝素與該第二晝t。、 βLarge (OP2) 1G8 amplifies the analog signal output from DAC1 and DAC2 to drive the corresponding pixel. The conventional operational amplifiers 1〇6 and 108 operate separately, and the bias of their operation is determined by the high potential ^ground potential GNDA, Zhao-(four) current:. Then, the amplified signals are output to the corresponding pixels by the output switches 110 to 116. From the perspective of circuit characteristics, the element is composed of a series of resistors and capacitors: In addition, the charge sharing switch 118 is configured to connect the capacitors of adjacent two pixels in series to achieve charge sharing when the pixels of an image frame are displayed. Thus, the charging time of the data of the next frame is saved, and the mechanism is known to those skilled in the art, which will not be described in detail, and the timing chart of FIG. 3 will be described later. In order to reduce the power/dissipation of the source driver itself, the traditional source driver is designed to use charge sharing technology and maximize the efficiency of the output stage of the operational amplifier. However, it should be noted that the power supplies of the two operational amplifiers, ρι and OP2, are connected to the high voltage level vdda and the ground voltage level GNDA, respectively. Because the power supplies of the two op amps are the same, the current consumption is the same. If the current consumption of the two op amps is j^, the total power consumption of the two op amps is 2X/x (m〇^ —^ Rule (4), that is, 6 24077twf.doc/p 2008471137Λ9 ^,. ν 7-027 says that it takes Jx (Kim4-GMX4) power for an operational amplifier. However, this method has been adopted in the trend of large-scale panels. It is necessary to adopt a new source driver architecture to further reduce power consumption. [Invention] The present invention provides a source driver that operates adjacent two channels by using a different bias current sharing amplifier architecture. The amplifier is spliced to reduce φ less DC bias current to reduce power consumption. In addition, the operating speed can be improved and the component does not need to adopt a high voltage resistant structure design. The present invention provides a panel display device including source driving crying An op amp architecture that shares the bias current to improve the performance of the panel display. This test X shows the source driver, including a first shipment. The amplifier receives a first analog signal of the first pixel to output an amplification signal, and the second operational amplifier receives a second analog signal of the second pixel to output a second amplification signal. The first operational amplifier _ and the second operational amplifier are connected in series between a high potential and a ground by a node to obtain an operation current. The secondary voltage source is connected to the node for supply-time a potential 'to maintain the operating current. - a switching circuit to output the first amplified signal and the second amplified signal to the corresponding first element: the second element. A /..., - according to the present invention In the source driver described in the preferred embodiment, the first operational amplifier has a first resistor, such that the operating current is present between the potentials of the high potential pad, and the second operational amplifier has a second + 7 - 7-027 24077twf.d〇c/p 2〇〇847l13 P and 'the current is between the potential and the ground potential. 4", the source of the preferred embodiment of the invention drives the g-potential Between the back-to-back packet and the ground potential - the middle The preferred embodiment of the present invention - the second pixel without the second pixel includes touch 'for example, the second brother: f-bit analog converter and - second digit" conversion ί; =:::"_ receives the first-halogen - Ϊ; Ϊ the third =:: analog signal. The second digital analog converter receives: a dilute of the poor material to convert into the second analogy. The preferred embodiment of the present invention The source driver is crying. The second switch includes a charge sharing switch. For example, the source driver described in the embodiment of the present invention, for example, the internal circuit of the driver or the external circuit is generated by ί::, A panel display device is provided, comprising: a display area, an array of 1:12 into: a plurality of source drivers for driving the pixel drive, for driving the pixel array and controlling a plurality of source drivers and a gate driver for driving the pixel '/, the mother and the source driver includes: a first operational amplifier of the signal y, receiving a first class of the first pixel to turn out - the first amplified signal; Second second type, a second operational amplifier, receiving 8 200847113 /-027 24077tw£doc/p =:=t a large signal, wherein the first operational amplifier is connected in series between the high potential plate and the ground turtle to obtain an operating current; and a primary voltage source is connected to the node to maintain the operating current; The switch circuit outputs the first and second numbers to the corresponding first and second 昼t. , β
、依照本發明的較佳實施例所述之面板顯示裝置， 源極驅動器例如也可贱前述的實麵做變化。’、 諸為ΐίΓΓ之上述和其他目的、特徵和優雜更明顯 日月^ 較佳實施例，並配合所關式，作詳細說 明如下。 【實施方式】 曰為了進一步降低源極驅動器本身的功率消耗，本發明 提出了新的源極驅動H架構。於本發明的源極驅動哭，藉 由運算放大器OT1和OP2電源設計，使運算放大器 和OP2在一筇點串接於高電位VDDA與地電位gnda之 間。節點與一次電壓連接’以維持一操作電流，流過運算 放大器OP1和0P2。以下舉一些實施例做為說明，但是: 發明不限於所舉實施例。 圖2緣示依據本發明實施例，源極驅動器的一部分電 路方塊示意圖。參閱圖2，源極驅動器仍採用電荷分享技 術但是對於運异放大器〇Pi 206和運算放大器〇p2 2〇8做 不同的設計。 200847113 7-027 24077twf.doc/pAccording to the panel display device of the preferred embodiment of the present invention, the source driver can also be modified, for example, in the aforementioned solid surface. The above and other objects, features, and advantages of the invention are more obvious. The preferred embodiment is described in detail with reference to the preferred embodiment. [Embodiment] In order to further reduce the power consumption of the source driver itself, the present invention proposes a new source drive H architecture. In the source driver of the present invention, the operational amplifiers OT1 and OP2 are designed such that the operational amplifier and the OP2 are connected in series between the high potential VDDA and the ground potential gnda. The node is connected to a primary voltage to maintain an operating current flowing through operational amplifiers OP1 and OP2. Some embodiments are described below, but the invention is not limited to the embodiments. 2 is a block diagram showing a portion of a circuit of a source driver in accordance with an embodiment of the present invention. Referring to Figure 2, the source driver still uses charge sharing techniques but has a different design for the op amp Pi 206 and the op amp 〇p2 2〇8. 200847113 7-027 24077twf.doc/p
Gamma電阻分壓器200產生Gamma修正電壓。 Gamma修正電壓與影像數位資料（data〇dd與 DATA_EVEN) -起輸入到對應的數位類比轉換器观、辦 (DAC1、DAC2)。數位類比轉換器2〇2、2〇4例如是M位 元的數位資料。為了達到電荷分享的效果，DAC1观對 應可晝素與偶晝素只輪出正極性電位，而DAC2 2〇4對應 偶晝素與奇晝素只輸出負極性電位。正極性電位意指大^ • 源極驅動器輸出電壓範圍的中間值之準位，負極性電位意 指小於源極驅動器輸出電壓範圍的中間值之準位。 DAC1 202的輸出端連接到運算放大器（〇ρι) 2〇6，而 DAC2 204的輸出端連接到運算放大器(〇ρ2) 2〇8。然而本 發明的運算放大器206與運算放大器208是藉由一節點串 接於南，壓準位VDDA與地電壓準節點是與 電壓源209所提供。藉由調整設計運算放大器206與 ，异放大器208以分別產生二個等效電阻，又可稱為第一 _ 電阻與第二電阻，使流過串聯的二個運算放大器206、208 $電=仍維持I，而次電壓源2G9提供的電壓可以維持穩 =的龟壓，也因此維持穩定的操作電流I。換句話說，次 電壓源209可以由驅動器内部產生或是由外部提供。又例 如=較佳的設計，運算放大器206與208可以是相同電路， °周,$有相同電阻，因此次電壓源2〇9提供的電壓準位例 ^疋鬲電壓準位VDDA與地電壓準位GNDA的中間點電 上述本發明對運算放大器206與208的改設計，對於 200847113 7-027 24077twfdoc/p 源極驅動器的整體效能而言，至少可以達到效能的提昇饮 果。例如，對於消耗功率而言，本發明的消耗功The Gamma resistor divider 200 produces a Gamma correction voltage. The Gamma correction voltage and image digital data (data〇dd and DATA_EVEN) are input to the corresponding digital analog converter (DAC1, DAC2). The digital analog converters 2〇2, 2〇4 are, for example, M-bit digital data. In order to achieve the effect of charge sharing, DAC1 corresponds to the polar potential of the halogen and even halogen, while DAC2 2〇4 corresponds to only the negative potential and even halogen and chitin. The positive potential means the level of the intermediate value of the output voltage range of the source driver, and the negative potential means the level of the intermediate value of the output voltage range of the source driver. The output of DAC1 202 is connected to an operational amplifier (〇ρι) 2〇6, and the output of DAC2 204 is connected to an operational amplifier (〇ρ2) 2〇8. However, the operational amplifier 206 and the operational amplifier 208 of the present invention are connected in series by a node, and the voltage level VDDA and the ground voltage reference node are supplied from the voltage source 209. By adjusting the design of the operational amplifier 206 and the different amplifier 208 to respectively generate two equivalent resistors, which may also be referred to as a first _ resistor and a second resistor, the two operational amplifiers 206, 208 flowing through the series are electrically = still The I is maintained, and the voltage supplied by the secondary voltage source 2G9 maintains a constant turtle pressure and thus maintains a stable operating current I. In other words, the secondary voltage source 209 can be generated internally by the driver or externally. For example, if the design is better, the operational amplifiers 206 and 208 can be the same circuit, and the same resistance can be obtained for the ° week, so the voltage level provided by the secondary voltage source 2〇9 is the voltage level VDDA and the ground voltage. Intermediate point of bit GNDA The above-described modification of the operational amplifiers 206 and 208 of the present invention can at least achieve an improvement in performance for the overall performance of the 200847113 7-027 24077 twfdoc/p source driver. For example, for power consumption, the power consumption of the present invention
Ix(VDDA-GNDA)。相較於傳統的源極驅動器而言，消= 功率減低一半。另外，對於單一的運算放大器而言，由於 其操作偏壓減少，例如VDDA是18V而次電壓是9V，因 此操作偏壓減低一半。如此其内部元件可以採用無需耐高 壓的元件結構，因此也可以簡化製程降低成本。又，由二 操作偏壓的減少，例如9V，對於驅動器操作時的電壓變化 率(slew rate)例如是9V/lps，則本發明可以在_完成操 作，比傳統的源極驅動器快，因此本發明也可以有效曰' 操作速度。 〆 ^ >接著，由多個開關210〜218所組成的開關電路，在適 當的時序下由對應的控制訊號，例如p〇pc、、 t〇PC卜NOPC、EQC所控制以導通或斷開，可以將由運 异放大|§放大後的放大訊號，對應輸出到對應的奇畫素與 ，晝素。圖3繪示圖2的驅動器在電荷分享機制下的操作。 麥閱圖3 ’時段300是資料輸入時相。時段3〇2是電荷分 享時相。時段304是運算放大器輪出時相。時段3〇6是下 一圖框(image frame)的資料輸入時相。時段3〇8是下一圖 框的電荷分享時相。時段31G是下„圖框的運算放大器ς 出時相。 、整體而&，配合參閱源極驅動器的電路，當進入資料 載入時相，會將欲輸出準位的㈣送至Μ位元數位類比轉 換器的輸入匯流排DATA—ODD/ DATA—EVEN上，所以源 11 200847113 ^ y x-^v/v, /-027 24077twf.doc/p 極驅動器的數位類比轉換器會依該資料輸出新的資料電 位，而控制訊號POPC/POPCB/NOPC/NOPCB會轉態到第 供，兒壓準位，在此以低電位為例，使輸出開關呈現斷 路狀恶，所以負載所看到的源極驅動器呈現高阻抗狀態。 一在進入電荷分享時相後，控制訊號EQC會轉態到第 二供應電壓準位，在此以高電位為例，使電荷分享^關呈 現短路狀H，所以面板料效電容c上的電荷會重新分Ix (VDDA-GNDA). Compared to the traditional source driver, the power consumption is reduced by half. In addition, for a single operational amplifier, since its operating bias is reduced, for example, VDDA is 18V and the secondary voltage is 9V, the operating bias is reduced by half. In this way, the internal components can be constructed without the need for high-pressure-resistant components, so that the process can be simplified and the cost can be reduced. Moreover, by the reduction of the two operational bias voltages, for example, 9V, and the voltage slew rate at the time of the driver operation is, for example, 9V/lps, the present invention can be operated at _, which is faster than the conventional source driver, and therefore The invention can also be effective in 'operation speed. 〆^ > Next, the switching circuit composed of the plurality of switches 210-218 is controlled to be turned on or off by a corresponding control signal, such as p〇pc, t〇PC, NOPC, EQC, at an appropriate timing. The amplified signal amplified by the operation and amplification can be output to the corresponding odd pixel and the element. 3 illustrates the operation of the driver of FIG. 2 under a charge sharing mechanism. Mai reading Figure 3 'Time period 300 is the data input phase. The period 3〇2 is the charge sharing phase. Period 304 is the phase in which the operational amplifier is rotated. The time period 3〇6 is the data input phase of the next image frame. The time period 3〇8 is the charge sharing phase of the next frame. The time period 31G is the operation phase of the lower-order op amp. The whole and the amp; refer to the circuit of the source driver. When entering the data loading phase, the (4) to be output level is sent to the Μ bit. The analog input converter of the digital analog converter is DATA-ODD/DATA-EVEN, so the source 11 200847113 ^ y x-^v/v, /-027 24077twf.doc/p digital converter analog converter will output according to this data The new data potential, and the control signal POPC / POPCB / NOPC / NOPCB will be turned to the first supply, the pressure level, here as a low potential, so that the output switch is open circuit, so the source seen by the load The pole driver assumes a high impedance state. After entering the charge sharing phase, the control signal EQC will transition to the second supply voltage level. Here, taking the high potential as an example, the charge sharing is turned into a short-circuit H, so the panel The charge on the material capacitor c will be re-divided
佈，使源極驅動器輸出的電位(CH一〇DD、ch〜eve冲到達 一中間值。 當電荷分树減束後，控制織零會再轉態為 位’使電荷分相關呈贿路狀態，停止電荷分享 二^後進人運异放大11輸出時相。若源極驅動器的輸出 —D欲達到負極性電位，而chjeven欲達到正極性 =位’則㈣碱NQPCB、P〇PCB觀到高電位，使對 $輸出開現短路狀態，將數鋪轉齡DAa所 4 電位’藉由運算放大輯組成的緩衝器輸出 带》而數位類比轉換器DAC2所輪出的負極性 =稭由運算放大器所組成的緩衝器輸出至CH_0DD ; ίίκ ^極驅動器的輸出CH~〇DD欲達到正極性電位， 了一 N欲達到負極性電位，則控制訊號N〇pc、p〇pc 所1所輸出的正極性電位，藉由運算放大器 斤成的緩衝器輪出至CH一ODD，而數位類比轉換哭 _所㈣幽输，—編㈣軸 12 2008471A3,027 24〇77_/ρ 衝器輸出至CHJEVEN。 上述的操作機制是一般的操作機制，因此本發明的源 極驅動裔仍符合傳統的驅動方式無須造成額外的改變。 本發明的源極驅動器可以應用在面板線式裝置上，以 提昇效能。圖4繪示依據本發明實施例，面板顯示裝置的 架構示意圖。參閱圖4，面板顯示裝置4〇〇包含有一顯示 區域408，由一晝素陣列所構成。一控制單元402，控制源 極驅動器404—0、404J、404—2··.與閘極驅動器406—0、 406一 1··· ’以進而驅動晝素陣列的晝素。於此實施例，源極 驅動裔404一0、404J、404_2…是由本發明的源極驅動器， 用=至少降低耗率功率以提昇操作速度。另外由於運算放 大f的操作電壓只需習知技術操作電壓的一半，不需使用 耐高電壓製程，因此，源極驅動器的製作成本也可以降低。 ^ ，發明所提出的源極驅動器架構，雖然需要液晶面板 系統額外提供-個供應電壓VMID，導致純成本和功率 =增加丄但是根據上述分析可以知道，本發明技術可使運 二放大為的功率消耗較先前技術降低5〇%，對於源極驅動 器本身功率消耗的降低有顯著改善。 . 然本發明已啸佳實施例揭露如上，然其並非用以 發明、，，任何热習此技蟄者，在不脫離本發明之精神 μ视圍内，當可作些許之更動與潤飾，因此本發明之 祀圍當視後附之申請專利範圍所界定者為準。 ，、ι 【圖式簡單說明】 。圖1繪示傳統的源極驅動器的一部分的電路方塊示意 13 24077twf.doc/p 200847113, ΧΛ Τ / -027 圖2繪示依據本發明實施例，源極驅動器的一部分電 路方塊示意圖。 圖3繪示圖2的驅動器在電荷分享機制下的操作示意 圖。 圖4繪示依據本發明實施例，面板顯示裝置的架構示 意圖。 【主要元件符號說明】 100: Gamma電組分壓器 • 102:數位類比轉換器 104:數位類比轉換器 106 :運算放大器 108:運算放大器 110〜118 :開關 200 : Gamma電組分壓器 202 :數位類比轉換器 204:數位類比轉換器 • 206 :運算放大器 208 :運算放大器 209 :次電壓源 210〜218 :開關 400:面板顯示裝置 402 :控制單元 404_0、404_1、404__2 :源極驅動器 406_0、406_1:閘極驅動器 408 :顯示區域 14Cloth, so that the potential of the source driver output (CH 〇 DD, ch ~ eve rushed to an intermediate value. When the charge is sub-bundled, the control woven zero will turn into a bit again - the charge is related to the bribe state Stop the charge sharing two ^ after entering the human differential amplification 11 output phase. If the output of the source driver - D wants to reach the negative potential, and chjeven want to reach the positive polarity = bit ' (4) alkali NQPCB, P〇 PCB view high The potential, so that the output of the $ output is short-circuited, the potential of the DAA is 4, the buffer output band composed of the operational amplifier, and the negative polarity of the digital analog converter DAC2 = straw by the operational amplifier The buffer formed is output to CH_0DD; the output CH~〇DD of the ίίκ^ pole driver is to reach the positive potential, and the anode of the control signal N〇pc, p〇pc is output to the negative potential. Sex potential, by the operation of the amplifier into a buffer wheel to CH-ODD, and digital analog conversion crying _ (four) secluded, - (four) axis 12 2008471A3, 027 24 〇 77_ / ρ punch output to CHJEVEN. Operating mechanism is a general operating mechanism, because The source driver of the present invention still conforms to the conventional driving method without causing additional changes. The source driver of the present invention can be applied to a panel line device to improve performance. FIG. 4 illustrates a panel display according to an embodiment of the present invention. Schematic diagram of the device. Referring to Figure 4, the panel display device 4A includes a display area 408, which is composed of a pixel array. A control unit 402 controls the source drivers 404-0, 404J, 404-2. And the gate driver 406-0, 406 - 1 · · · ' to drive the pixel of the pixel array. In this embodiment, the source driver 404 - 0, 404J, 404_2 ... is the source driver of the present invention, Use = at least reduce the power consumption to increase the operating speed. In addition, since the operating voltage of the operational amplifier f requires only half of the operating voltage of the conventional technology, and the high voltage resistant process is not required, the manufacturing cost of the source driver can also be reduced. ^, the proposed source driver architecture, although the LCD panel system is required to provide an additional supply voltage VMID, resulting in pure cost and power = increase, but according to the above It can be seen that the power consumption of the invention can be reduced by 5% compared with the prior art, and the power consumption of the source driver itself is significantly improved. However, the present invention has been disclosed above. It is not intended to be invented, and any person skilled in the art can make some modifications and retouchings without departing from the spirit of the present invention. Therefore, the patent application of the present invention is attached thereto. The definition of the scope shall prevail. , , ι [Simple description of the diagram] Figure 1 shows the circuit block diagram of a part of the conventional source driver 13 24077twf.doc/p 200847113, ΧΛ Τ / -027 Figure 2 shows the basis In the embodiment of the invention, a schematic block diagram of a part of the circuit of the source driver. 3 is a schematic diagram showing the operation of the driver of FIG. 2 under a charge sharing mechanism. 4 is a block diagram showing the architecture of a panel display device in accordance with an embodiment of the present invention. [Main component symbol description] 100: Gamma electric voltage compensator • 102: Digital analog converter 104: Digital analog converter 106: Operational amplifier 108: Operational amplifier 110 to 118: Switch 200: Gamma electric voltage divider 202: Digital analog converter 204: digital analog converter • 206: operational amplifier 208: operational amplifier 209: secondary voltage source 210~218: switch 400: panel display device 402: control unit 404_0, 404_1, 404__2: source driver 406_0, 406_1 : Gate driver 408: Display area 14