200807361 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種液晶顯示器驅動裝置，特別是關 於一種節省功率消耗和降低電磁干擾的的液晶顯示器驅 動裝置。 【先前技術】 第一圖顯示一傳統的液晶顯示器架構圖。其中包含了 • 傳統的信號產生裝置10、灰階參考電壓產生裝置20、直流 電壓轉換裝置30、液晶面板40、複數級資料驅動裝置、以 及複數級掃描驅動裝置50。 . 灰階參考電壓產生裝置20，用以產生一灰階參考電 壓給該複數級資料驅動裝置，作為影像在顯示器上的灰階 色調調整。直流電壓轉換裝置30，用以提供電壓給信號產 生裝置10、灰階參考電壓產生裝置20、複數級資料驅動裝 置、以及複數級掃描驅動裝置50。信號產生裝置10，用以 產生一時脈信號、一影像輸出信號，以及複數級啟動信 號。複數級資料驅動裝置，由左至右依序為第一級資料驅 動裝置60、第二級資料驅動裝置61，皐到最右方的第η級 資料驅動裝置63，主要用以儲存影像資料，以及輸出影像 資料至液晶面板40顯示。複數級掃描驅動裝置50用以驅動 液晶面板40，以接受來自於資料驅動裝置的影像資料。而 液晶面板40則用以顯示影像資料。 由圖中可以得知，傳統的液晶顯示器架構，是將信 200807361 號產生裝置10、灰階參考電壓產生裝置20，以及直产雷 轉換裝置30所輸出的各種信號以及電壓，以並列$ 式同時提供給每一級的資料驅動裝置。然而，圖中的备 級資料驅動装置，是由左至右依序產生動作以儲存影眘 料’隶後再同時輸出至液晶面板40作顯示。在此過程中: 對於尚未須要儲存影像資料的資料驅動裝置，會因^仍然 接收到時脈信號而動作，於是造成不必要的功率消^毛。 第二圖顯示傳統液晶，顯示器中的時序圖。如圖所 示，其中的影像輸出信號的負緣，於時間點衍被偵測到， 於是各，級的資料驅動裝置（第一圖）皆輸出影像資料至液 晶面板40作顯示。在時間點t2時，第一級啟動信號則驅 第一級資料驅動裝置60，以儲存影像資料。鈥而在此 時，第二級資料驅動裝置61、直到第n級資料驅動裝置6^， 雖然沒有接收到啟動信號以儲存影像資料，卻仍鈥^ 接收到時脈信號而動作，因此造成不必要的功率&費。… 由以上説明可知，在一特定時間内，僅有一級 驅置會儲存影像資料，然、而，其餘的各級資料驅動誓 置都會因為接收到時脈信號而動作’因此造成不^ ^ 率浪，。有鑑於此，一種能夠減少不必要的時脈動作，= 達成即省功率消耗的資料驅魴裝置，是有其需求與重要性 的0 【發明内容】 细目的，提出-種可以節省功率 動猎由避免將時脈信號傳送至尚未須 料的資料驅動裝置中，以減少不必要的時脈作子心像男 200807361 根據以上所述之目的，本發明楹 驅動裝置，包含-信號產生裝置 ^ ^液晶顯示器 其中信號產生裝置會輸出一時【停貝料驅動裝置。 尸-時脈啟動信號。而時脈信號在g停: 驅動裝置為串級連接，第'級的複數個資料 時脈啟動信號，且每一次級的4以= 接收來自於前級的資料驅動震置所輪 衣置了 【實施方式】 本發明的一些實施例詳細描述如下。妙 ，述外’本發明還可以廣泛地在其他的實了詳細 _ 士發明的範圍不受下列實施例蚊，施行’且 乾園為準。 之谈的申請專利 f三圖顯示，合本發明一實施例的 ^。如圖所示，其中包含了信號產生裝 ”、、員不裔木構 $產生裝置12〇、直流電壓轉換裝置二二^階參考 吸數級資料喊裝置、錢複 在本實施例中，灰階參考電壓產生與 2生-灰階參考電壓給該複數級資料“2，=3 像在顯示器上的灰階色調調整。直流電壓轉以，以衫 200807361 i * 用以提供電壓給信號產生裝置11〇、灰階參考電壓產生裝 置120、複數級資料驅動裝置、以及複數級掃描、驅動裝 150>\信號產生裝置no，用以產生一時脈信號、一影像輪 出信號、’以及一气動信號。複數級資料驅動裝置，由左至 右依^為第一級資料驅動裝置16〇、第二級資料驅動裝置 161、第n-1級資料驅動裝置162，直到最右方的第仏級^ 馬區動裝置163 ’主要，以儲存影像資料，以及輸出影像資 料至液晶面板140顯示。複數級掃描驅動裝置15〇用以驅動 液晶面板140，以接受來自於資料驅動裝置的影像資料。 而液晶面板140則用以顯示影像資料。 、 1較於第一圖中的傳統液晶顯示器架構圖，本實施例 中的信號產生裝置110内部具有一觸發裝置（未圖示）， 測到景f像輸出信號的負緣時，暫時停止時脈信號輸 出一級負料驅動裝置16〇 ;且於啟動信號的正緣被偵 測，，提前複數個時脈週細始將時脈健輸出至第一 級j =動^置160。*關於本發明+，利用影像輪出信 號作為％齡止錢，並藉由侧其貞緣來暫停時脈_號 的輸出；錢利用啟動信號作為時脈啟動信號，並藉由^ 測其^緣來開始時脈信號的輸出，將於之後的内容中作進 一步說明。 斤此外，相較於傳統液晶顯示器的架構，本發明實施例 在第三圖中的第一級資料驅動裝置160、第二級資料驅動 裝置161，直到最右方的第n級資料驅動裝置163，是以串 接（cascade)架構相聯結。因此，無論是由信號產生裝置 110所輸出的時脈信號、影像輪出信號，以及啟動信號， 直流電壓轉換裝置13〇所提供的電壓，灰階參考電壓產生 9 200807361 級 裝置120所產生的灰階參考電壓，皆是依序傳 〆 資料驅動裝置160，第二級資料驅動裝置161，直I，BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display driving device, and more particularly to a liquid crystal display driving device which saves power consumption and reduces electromagnetic interference. [Prior Art] The first figure shows a conventional liquid crystal display architecture. There are included: a conventional signal generating device 10, a gray scale reference voltage generating device 20, a DC voltage converting device 30, a liquid crystal panel 40, a plurality of level data driving devices, and a plurality of level scanning driving devices 50. The gray scale reference voltage generating device 20 is configured to generate a gray scale reference voltage to the plurality of data driving devices as gray scale tone adjustment of the image on the display. The DC voltage converting device 30 is for supplying a voltage to the signal generating device 10, the gray scale reference voltage generating device 20, the plurality of stages of data driving means, and the plurality of stages of the scanning driving means 50. The signal generating device 10 is configured to generate a clock signal, an image output signal, and a plurality of levels of start signals. The plurality of data driving devices are sequentially arranged from left to right into a first level data driving device 60 and a second level data driving device 61, and are connected to a rightmost nth level data driving device 63 for storing image data. And outputting the image data to the liquid crystal panel 40 for display. The plurality of scanning drive units 50 are used to drive the liquid crystal panel 40 to receive image data from the data driving device. The liquid crystal panel 40 is used to display image data. As can be seen from the figure, the conventional liquid crystal display architecture is a combination of the signals of the 200807361 generating device 10, the gray scale reference voltage generating device 20, and the direct output lightning conversion device 30, and the voltages and voltages simultaneously Provided to each level of data drive. However, the standby data driving device in the figure sequentially generates actions from left to right to store the shadows, and then outputs them to the liquid crystal panel 40 for display. In the process: For a data drive device that does not need to store image data, it will act because it still receives the clock signal, thus causing unnecessary power dissipation. The second figure shows a conventional liquid crystal, a timing diagram in the display. As shown in the figure, the negative edge of the image output signal is detected at the time point, and then each level of the data driving device (the first picture) outputs the image data to the liquid crystal panel 40 for display. At time t2, the first stage enable signal drives the first stage data drive unit 60 to store the image data. At this time, the second-stage data driving device 61, up to the n-th data driving device 6^, does not receive the activation signal to store the image data, but still receives the clock signal and acts, thus causing no The necessary power & fees. ... As can be seen from the above description, only one level of drive will store image data in a certain period of time, however, the rest of the data drive will be acted upon because it receives the clock signal. wave,. In view of this, a data flooding device capable of reducing unnecessary clock action, achieving power consumption, is a demand and importance. [Invention] The details are proposed to save power. By avoiding the transmission of the clock signal to the data drive device that has not yet been prepared, in order to reduce unnecessary clocks, the heart is like a male 200807361. According to the above-mentioned purpose, the present invention is a driving device comprising a signal generating device. In the display, the signal generating device outputs a temporary stop device. Corpse-clock activation signal. The clock signal is stopped at g: the driving device is a cascade connection, and the plurality of data clocks of the first stage start signal, and each of the secondary 4s receives the data from the preceding stage to drive the wheeled device. [Embodiment] Some embodiments of the present invention are described in detail below. The present invention can also be widely practiced in other aspects. The scope of the invention is not limited to the following embodiments of the mosquito, and the dry garden is the standard. The patent application f of the discussion shows a ^ in the embodiment of the present invention. As shown in the figure, it includes a signal generating device, a member of the wood structure $ generating device 12, a DC voltage converting device, a second-order reference, a suction level data shouting device, a money complex in the present embodiment, a gray scale reference The voltage is generated with a 2 raw-gray reference voltage to the complex level data "2, = 3 like the grayscale tonal adjustment on the display. The DC voltage is converted to the shirt 200807361 i * for supplying voltage to the signal generating device 11 , the gray scale reference voltage generating device 120 , the plurality of data driving devices, and the plurality of scanning, driving device 150 > signal generating device no, Used to generate a clock signal, an image wheeling signal, and a pneumatic signal. The multi-level data driving device is composed of a first-level data driving device 16A, a second-level data driving device 161, and an n-1th data driving device 162 from left to right until the rightmost level The zone moving device 163' is mainly used to store image data and output image data to the liquid crystal panel 140 for display. The multi-level scanning driving device 15 is for driving the liquid crystal panel 140 to receive image data from the data driving device. The liquid crystal panel 140 is used to display image data. 1 , compared with the conventional liquid crystal display architecture diagram in the first figure, the signal generating device 110 in this embodiment has a trigger device (not shown) therein, and when the negative edge of the image f image output signal is detected, the signal is temporarily stopped. The pulse signal outputs the first-level negative material driving device 16〇; and when the positive edge of the start signal is detected, the clock pulse is outputted to the first stage j=moving and setting 160 in advance. * Regarding the present invention +, the image is rotated out as the %-age stop money, and the output of the clock_number is paused by the side edge; the money uses the start signal as the clock start signal, and is measured by ^ The output of the clock signal at the beginning of the edge will be further explained in the following. In addition, compared with the architecture of the conventional liquid crystal display, the first stage data driving device 160 and the second level data driving device 161 in the third embodiment of the present invention up to the rightmost nth level data driving device 163 Is connected in a cascade architecture. Therefore, regardless of the clock signal outputted by the signal generating device 110, the image wheeling signal, and the start signal, the voltage supplied by the DC voltage converting device 13〇, the gray scale reference voltage generates ash generated by the device 20082008 The order reference voltage is sequentially transmitted by the data driving device 160, the second level data driving device 161, straight I,
的第η級資料驅動裝置163»也就是說，第—級資嵙J 置160所輸出的各項電壓與信號’會輸入至第二：資= 動裝置161，而第二級資料驅動裝置161所輪出的各項=壓 與信號，再輸入至下一級的資料驅動裴置，直 二铋= 料驅動裝置163為止。有關於本發明如何避 次极二 動裝置的非必要動作而節省功率消耗，將在 的=容中 配合時序圖作說明。 卜的内合Τ _第四發明實施例中液晶顯示器的時序圖。如 Π，其中士包含了一時脈停止.信號、第一級時脈啟動信 ^、弟二級枯脈啟動信號、第三級時脈啟動信號、 ^巧啟動信號、第一級時脈信號、第二級時脈信發、三 、、及時脈信號，以及第η級時脈信號。 。'u 一 疋 晶 用ίίΐιΊϊ時脈停止信號，即為影像輸出信號，主要 資料驅動裝置同時輸出影像資料至· y Μ 錢t 信 疋用以啟動對應的某一級眘料I壯=5虎，主f 脈^虎的輸出’因此命名▲時脈啟動;號。、、叫始喊 =下將參照第三圖與圖作 生震置110(第三圖）所產生的時脈停止信ί(第四d 200807361 負緣在時間11時 、 :口期巧脈内部的觸發裝置所 週』)後’於時間t3時停止箓竺個盼脈週期(例如10個 :弟^資料驅動褒置⑽）且^^脈信號（用以提供 匕冋蚪，在時間tl細過藉|f持於一邏輯高準位狀 週期）的時間t2時，停1 固&時脈週期後(例如7個時脈 級資料驅動震置16 )、信號（用以提供給第二 n-1級資料驅動裂置/62)弟直信號（用以提供給第 給第η級資料驅動裝置·且以時二號(用以提供 符於—邏輯高準位狀態。 接著，當信號產生裝置110所產4 信號之正緣於時間測到時，時脈啟動 前複數個時脈週期（例如5個時脈週0' =脈信號提 恢復時脈信號的運作，因此，第'級义料 t4便能接收到正常的時脈信號，在時於時間 一級時脈啟動信號（即啟動信號），所 以開妗到第 資料。 A J以開始儲存影像 如圖所示，在時間t5時，由於其餘的第二級 號、第n-1級時脈信號，直到第η級時脈信號都維持=== 高準位’所以相對應接收到這些時脈信號的第二輯 動裝置161、第η-1級資料驅動裝置162,直到第 動裝置163都能夠避免因為時脈信號非必要動作而=料驅 率消耗。 〜成功 同理，當第二級時脈啟動信號之正緣於時間t7 到時，會將第二級時脈信號提前複數個時脈週期如貞 11 200807361 =脈週’於時間切時開始恢後時脈 於時輯便能接受到正常的：作 乂^以上說明可知，本發明中的資料驅動裝置，卷甘 妓置在儲存影像㈣時，其餘的f料驅^二 無法f收正常的時脈信號，因此不會造成非必要的時 作而消耗功率，達到節省電源的效果。 、’ 以上所述僅為本發明之較佳實施例而已，、 明；凡其它未脫離本發明所揭示之精神下所4限 等效改變或修飾，均應包含在下述之中請專利=$成之 【圖式簡單說明】 第一圖顯示傳統的液晶顯示器架構圖； 第二圖顯示傳統液晶顯示器中的時序圖；. 及罘二圖顯示本發明一實施例的液晶顯示器架構圖· 乂 第四圖顯示本發明一實施例中液晶顯示器的時序圖 【主要元件符號說明】 10 、 110 信號產生裝置 20 、 120 灰階參考電壓產生裝置 30 、 130 直流電壓轉換裝置 12 200807361 40、140 50 、 150 60 、 160 61 、 161 62 、 162 63、163 液晶面板 掃描驅動裝置 第一級資料驅動裝置 第二級資料驅動裝置 第n-l級資料驅動裝置 第η級資料驅動裝置 13The n-th data driving device 163»that is, the voltages and signals 'outputted by the first-stage resource set 160 are input to the second: the mobile device 161, and the second-level data driving device 161 The items that are rotated are the pressure and signal, and then input to the data driving device of the next stage, until the material driving device 163. Regarding how the present invention avoids the unnecessary operation of the secondary pole device and saves power consumption, the timing of the = in the capacity is explained.内 内 _ _ The timing chart of the liquid crystal display in the fourth embodiment of the invention. Rugao, the sergeant contains a clock stop signal, the first-level clock start signal ^, the second-level pulse start signal, the third-level clock start signal, the smart start signal, the first-level clock signal, The second stage clock signal, the third, the time pulse signal, and the nth clock signal. . 'u One crystal uses ίίΐιΊϊ clock stop signal, which is the image output signal, the main data driving device simultaneously outputs the image data to · y Μ money t letter 疋 to start the corresponding one level of caution I strong = 5 tiger, the main f The pulse ^ tiger's output 'is therefore named ▲ clock start; number. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, After the trigger device is turned "after" at time t3, stop the cycle of the desired pulse (for example, 10: brother ^ data drive device (10)) and ^^ pulse signal (to provide 匕冋蚪, at time t1 After the time t2 of the borrowing |f held in a logic high-level bit period), after the 1st clock cycle (for example, 7 clock-level data drives the settling 16), the signal (for providing to the second) N-1 level data drive split / 62) brother straight signal (used to provide the first nth level data drive device · and time 2 (to provide a - logic high level state. Then, when the signal When the positive signal generated by the generating device 110 is detected by time, a plurality of clock cycles before the clock is started (for example, 5 clock cycles 0' = the pulse signal recovers the operation of the clock signal, therefore, the level The material t4 can receive the normal clock signal, and the clock start signal (ie, the start signal) at the time of the first time, so the data is opened. AJ starts to store the image as shown in the figure. At time t5, due to the remaining second-level and n-1th clock signals, until the η-level clock signal maintains the === high level, the phase Corresponding to the second retrieving device 161 and the n-1th data driving device 162 that receive these clock signals, until the first moving device 163 can avoid the non-essential action of the clock signal, the material drive rate is consumed. For example, when the second-order clock start signal is positive at time t7, the second-order clock signal is advanced by a plurality of clock cycles, such as 贞11 200807361=pulse-peripheral time starts to recover after time-cutting According to the above description, the data driving device of the present invention, when the file is stored in the image (4), the remaining f material drive 2 can not receive the normal clock signal. Therefore, the power consumption is not caused by the unnecessary operation, and the power saving effect is achieved. The above is only the preferred embodiment of the present invention, and the other is not departing from the spirit of the present invention. The equivalent limit change or modification shall include In the following, please refer to the patent = $成 [Simplified description of the drawings] The first figure shows the conventional liquid crystal display architecture diagram; The second figure shows the timing diagram in the conventional liquid crystal display; and the second figure shows an embodiment of the present invention The liquid crystal display architecture diagram of the liquid crystal display according to an embodiment of the present invention [main element symbol description] 10, 110 signal generating device 20, 120 gray-scale reference voltage generating device 30, 130 DC voltage converting device 12 200807361 40,140 50 , 150 60 , 160 61 , 161 62 , 162 63 , 163 LCD panel scanning drive device first stage data drive device second level data drive device nl level data drive device nth level data drive device 13