iAlTW 25575twf.doc/n 201037671 六、發明說明： 【發明所屬之技術領域】 β本發明是有關於一種液晶顯示器的驅動 =種可消除液晶顯示器開機雜訊的驅動裝置與方 【先前技術】 o o 廣Ji=^Uquid aystai Dispiay ’ 咖）近來已被 ’隨考驅動技術的改良’使其具有低的 ::攝:=、低電壓驅動等優點，目前已經㈣^ it 記型電腦、桌上型顯示器及各種投影 的液晶面板在顯示關_會有雜訊產生的疑 ΐ &疋因為在卫作電壓達到驅動電路所需的電壓準位之 二=無進Λ畫面清除或重置的動作所致，^ :之_板上的狀態無法確定，這也就是開』= 料通示11職的❹1，雜驅料所輪出的資 枓亦無法確定，因此在背光源開啟之後，面 雜讯。由於開機時所產生的雜訊影像會影 曰扁費者對產σσ品質的信心，因此避免開機雜訊 僅可提升顯示||品質，更可提^肖費者對 的 【發明内容】 ◎的办。 本發明提供-種顯示器的驅動裝置，利用偵測單元來 :rw 25575twf.doc/n 201037671 偵測顯示器關機動作，# 偵測單元断^上輕—默值時’ 生雜訊影像。 Θ *、乍，避免在背光開啟後產 本發明提供一種題μ 所輸出的工作電壓料動方法，湘電壓轉換器 輸出-重置信號== 貞測顯示器的開機動作’並預先 本發明提供一種顯 ^避免雜訊影像的產生。 的開機動作，當W ’彻偵測單元來侧顯示器 即進行畫岭麟_，制單元隨 承上述，本發明提出月士開啟後產生雜訊影像。 轉換器、面板_^裝置，包括電壓 出一工作電壓二單元1壓轉換器用以輪 作電壓以驅動—面板;電壓轉換器，收工 驅動單元，作電壓X於^壓轉換11與面板 :的工作電壓符合一觸發條件時:二 訊影像。 重置顯不面板，藉频除開機時的雜 在本發明—實施例中，上述面板驅動 動器與閘極驅動器。源極驅動器=兀包括源極驅 器耦接於該面板，其中上述乍為 2閘極驅動 驅動器之工作電源。 忭·為源極驅動器與閘極 在本發明一實施例中，上诚f 降壓電路。 1轉換器為升壓電路或 在本發明-實施例中，當上述工作電壓大於―預設值 201037671 ， v，v^v,^]Z1TW 25575twf.doc/n 時，則符合該觸發條件。 在本發明一貫施例中，上述面板驅動單元根據該重置 信號顯示一黑畫面。 在本發明一實施例中，當螢幕驅動裝置開機時，電壓 轉換器開始轉換一直流電壓並輪出上述工作電壓。 在本發明一實施例中，上述面板驅動單元更包括一時 序控制器，該偵測單元在該時序控制器致能前輸出該重置 〇 信號。 在本發明一實施例中，上述面板為一液晶面板。 從另一個觀點來看，本發明另提出一種顯示器的驅動 方法，包括下列步驟：首先，偵測一面板驅動單元的工作 電壓；然後，當該面板驅動單元的工作電壓符合一觸發條 件時，則輸出一重置仏號。接下來，根據該重置信號重置 該面板。 在本發明一實施例中，上述在當該面板驅動單元的工 符合賴割祕時之㈣巾，料#該面板驅動單 © TL的工作電壓大於一預設值時則符合該觸發條件。 本發明又提出一種示器，包括面板、電壓轉換器、面 ，驅動單元以及偵測單元。電壓轉換器用以輸出一工作電 壓，而面板驅動單元耦接於電壓轉換器並接收其所輪出的 工作電壓以驅動該面板。偵測單元則耦接於該電壓轉換器 與該面板驅動單元，用以偵測該工作電壓。其中，當該^頁 示器開機時，該電壓轉換器開始調整該工作電壓，當該工 作電壓符合一觸發條件時，該偵測單元輸出一重置信號至 201037671 /οΐϋ,iTW 25575twf.doc/n 該面板驅動單元以重置該面板。 本發明因在顯示器中設置一偵測單元，因此可避免開 機雜。τι的產生，彳貞測單元會在顯示器開機時輪出重置信號 至源極驅動器與閘極驅動g w舌罢而私 _ 免動益以重置面板，讓面板在系統穩 疋刖可預先清除晝面上的雜訊。 1為讓本發明之上述特徵和優點能更簡錢，下文特 舉較佳實闕，並配合所關式，作詳細說明。 【實施方式】 第一實施例 …圖1為根據本發明第一實施例之顯示器系統示意圖。 扁示益100包括驅動裝置與面板160，其中驅動裝置包括 面板驅，單元、電壓轉換器110以及偵測單元150，而面 1驅動單元尚包括源極驅動器120、閘極驅動器130以及 %序控制器140。偵測單元15〇耦接於電壓轉換器11〇與 源;^驅動& 120 ’祕驅動n 12G與閘極驅動器13〇則根 據柃序控制斋140的輸出來驅動面板16〇。面板16〇則例 如為液晶面板(Liquid Crystal Panel)。 電壓轉換器110主要負責直流電壓的電位轉換，這是 因為晝素通常需要高電位的驅動電壓，所以電壓轉換器 U0會將顯示器所接收到的直流電壓轉換為較高的電壓^ 準，以提供源極驅動器120與閘極驅動器13〇所需的工作 電壓，主要用於驅動面板160内的晝素。電壓轉換器11〇 則例如是升壓電壓(Boost Circuit)。若晝素所需的驅動電壓 較小’則電壓轉換器11 〇可以降壓電壓(Buck arcuit)取代。 201037671 1 w CZITW 25575twf.doc/n 當顯示器100開機時，電壓轉換器110所輪出的工作電壓 VDC會隨之上升，偵測單元15〇會偵測工作電壓的 電=變化，當工作電壓VDC符合—觸發條件時，表示顯 不器100正處於開機狀態，偵測單元15〇輪出一重置信號 SRET至面板驅動單元以重置面板16〇，清除面板16〇可能 顯示的雜訊影像。 在顯示器100開機的瞬間，由於時序控制器14〇、源 〇 極驅動器I20以及閘極驅動器130尚無法正常:作，所以 面板_會有雜訊影像產生。因此在本實施例中，將觸發 ，件設定為一預設值，當工作電壓VDC大於此一預設值 時，表示顯示器100正處於開機狀態，偵測單元15〇會隨 即輸出重置信號SRET來清除面板16〇，避免產生雜訊影 像。上述重置信號SRET則例如為—黑晝面或白晝面，可 依照顯不器100的規格(normally white或是n〇rma black)來決定。 重置<5號SRET的傳送路徑可利用時序控制器140與 豸極驅動$ 12G之間的匯流排來傳送’或是額外設置傳輪 路#。伽單元I%會在時序控㈣刚可以正常工作前， 預先傳送:t置信號SRET至祕驅動n 12G與雜驅動器 130。一旦源極驅動态12〇與閘極驅動器所接收的工作 電壓VDC達到軸晝細f的電壓位科，源極驅動器 120與閘極驅動器130便會隨即重置面才反16〇，避免顯示器 在開機時產生雜訊影像。 此外’在本發明另—實施例_，亦可於源極驅動器 201037671 ru/uju^/^irw 25575twf.doc/n 與閘極驅動器130中設置對應的功能接腳，當其功能接腳 致能時，源極驅動器12〇與閘極驅動器13〇便會自動重置 面板160如此，偵測單元bo僅需搞接至源極驅動器12〇 與閘極驅動器130的功能接腳，並以重置信號SR£T對應 致能其功能接腳即可達到重置面板16〇的效果。藉此，亦 可簡化偵測單元15〇的電路設計，在本技術領域具有通常 知識者，經由本發明之揭露，應可輕易推知偵測單元15〇 的電路架構，在此不加累述。 在電路的配置上，由於目前面板160可採用C0G(Chip on Glass)技術將閘極驅動器13〇整合於面板16〇上，以及 直接利用面板160上的金屬走線將工作電壓與信號傳送到 閘極驅動器130。因此，圖丨所示之偵測單元15〇僅耦接 於源極驅動器120，並可經由面板160上的金屬走線將重 置信號SRET傳送至閘極驅動器13〇。但本實施例並不受 限於圖1之電路架構’若面板16〇未採用C〇G技術，偵 測單元150亦可直接耦接於閘極驅動器13()以傳送重置信 號 SRET。 圖2為根據本實施例之信號波形圖。如圖2所示，當 顯示器100開機時’工作電壓VDC會隨之上升’當工作 電壓VDC大於預設電壓VSET時’偵測單元150便會輸 出重置信號SRET至源極驅動器12〇與閘極驅動器130。 因此，於重置期間T1中，面板驅動單元重置面板160，避 免產生雜訊影像。重置期間T1之起算，可於工作電壓VDC 達到預設電壓VSET位準時，也可於工作電壓VDC達到 〇 o 201037671 ru^u^ziTW 25575twf.doc/n 預設電壓VSET位準後之一段時間。 第二實施例 從t個觀點來看，本發明亦提出—種顯示器的驅動 方式，適用於驅動一面板。請參照圖3，圖 =二首實::之驅動方法流程圖。上述驅動二 接下來A t貝面板驅動早元的工作電壓(步驟S310); 板驅動單元的工作電壓符合-觸發條件時， 2出-重置信號(步驟S32G);然後，根 面板以避免產生雜訊影像(步驟S330)。 彳°唬重置 -在本實施例中，在上述步驟S320令 几的工作電壓大於-預設值時職合觸發條件。β =顯示器開機時，工作額便會隨之上升，因此可 態’並預先輪出重置信號以二 =法之其餘相關細節請參照上述第二二=边 ^技術=财具㈣料财經由本發明應 易推知，在此不加累述。 源J早工 狀態單;^倘測顯示器是否處於開機 亚職輸出重置域來重置面板 ==二=:二: 單元便可達到避免;：:產的生=;路!▲=_ :直接應用於目前的顯示器之中，因此 201037671 25575twf.d〇c/n —雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明’任何所屬技術領域中具有通常知識者，在不 脫離本發明之精神和範圍内，當可作些許之更動與潤飾， 因此本發明之保護範圍當視後附之申請專利範圍所界定者 為準。 【圖式簡單說明】 圖1為根據本發明第一實施例之顯示器系統示意圖。 圖2為根據本實施例之信號波形圖。 圖3為根據本發明第二實施例之驅動方法流程圖。 【主要元件符號說明】 100 :顯示器 110 :電壓轉換器 120 :源極驅動器 130 :閘極驅動器 140 :時序控制器 150 :偵測單元 160 :面板 VDC :工作電壓 SRET :重置信號 VSET :預設電壓 T1 :重置期間 S310〜S330 :步驟iAlTW 25575twf.doc/n 201037671 VI. Description of the Invention: [Technical Field of the Invention] β The present invention relates to a driving device for a liquid crystal display = a driving device capable of eliminating the startup noise of a liquid crystal display and a method [Prior Art] oo Wide Ji=^Uquid aystai Dispiay 'cafe' has recently been improved by the 'test drive technology' to have low::photo:=, low voltage drive, etc., it has been (4)^ it type computer, desktop display And various projections of the LCD panel in the display off _ there will be noise generated by the problem & 疋 because the voltage of the servo reaches the voltage level required by the driver circuit = no movement of the screen to clear or reset , ^ : The status of the board can not be determined, this is the opening 』 料 通 通 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂 杂Since the noise image generated during the booting will affect the confidence of the flatter in the quality of the σσ, the avoidance of the noise can only improve the display quality of the display, and the content of the invention can be improved. do. The invention provides a driving device for a display, which uses the detecting unit to: rw 25575twf.doc/n 201037671 to detect the shutdown operation of the display, #detecting the unit to break the light--the default value of the noise image. Θ *, 乍, to avoid after the backlight is turned on, the present invention provides a working voltage feeding method outputted by the problem μ, the voltage converter output-reset signal == detecting the startup action of the display' and the present invention provides a Display ^ to avoid the generation of noise images. The booting action, when the W's detection unit is on the side of the display, is to draw the lining _, the unit is in accordance with the above, the present invention proposes that the moon is opened to generate a noise image. Converter, panel _ ^ device, including voltage out of a working voltage two unit 1 voltage converter for rotating voltage to drive - panel; voltage converter, processing drive unit, voltage X to ^ voltage conversion 11 and panel: operating voltage When a trigger condition is met: two images. The display panel is reset, and the panel driver and the gate driver are used in the present invention - in the embodiment. The source driver = 兀 includes a source driver coupled to the panel, wherein the 乍 is the operating power of the 2-gate driver.忭· is the source driver and the gate. In an embodiment of the invention, the upper circuit is a step-down circuit. The converter is a booster circuit or in the present invention-embodiment, when the above operating voltage is greater than a preset value of 201037671, v, v^v, ^] Z1TW 25575twf.doc/n, the trigger condition is met. In a consistent embodiment of the present invention, the panel driving unit displays a black screen based on the reset signal. In an embodiment of the invention, when the screen driving device is turned on, the voltage converter begins to convert the DC voltage and rotates the operating voltage. In an embodiment of the invention, the panel driving unit further includes a timing controller, and the detecting unit outputs the reset 〇 signal before the timing controller is enabled. In an embodiment of the invention, the panel is a liquid crystal panel. From another point of view, the present invention further provides a driving method for a display, comprising the steps of: firstly detecting an operating voltage of a panel driving unit; and then, when the operating voltage of the panel driving unit meets a triggering condition, Output a reset apostrophe. Next, the panel is reset according to the reset signal. In an embodiment of the invention, the triggering condition is met when the working voltage of the panel driving unit (the TL) is greater than a preset value when the panel driving unit is in compliance with the cutting operation. The invention further provides an indicator comprising a panel, a voltage converter, a surface, a driving unit and a detecting unit. The voltage converter is used to output a working voltage, and the panel driving unit is coupled to the voltage converter and receives the operating voltage it is rotating to drive the panel. The detecting unit is coupled to the voltage converter and the panel driving unit for detecting the working voltage. Wherein, when the page display is turned on, the voltage converter starts to adjust the working voltage, and when the working voltage meets a trigger condition, the detecting unit outputs a reset signal to 201037671 /οΐϋ, iTW 25575twf.doc/ n The panel drive unit to reset the panel. The invention is provided with a detecting unit in the display, so that the opening of the machine can be avoided. When τι is generated, the detection unit will turn off the reset signal to the source driver and the gate driver gw tongue when the display is turned on. _Free move to reset the panel, so that the panel can be cleared beforehand in the system. Noise on the surface. 1 In order to make the above features and advantages of the present invention simpler, the following detailed description will be given in detail, and the detailed description will be made in conjunction with the description. [Embodiment] FIG. 1 is a schematic diagram of a display system according to a first embodiment of the present invention. The flat display 100 includes a driving device and a panel 160, wherein the driving device includes a panel driver, a unit, a voltage converter 110, and a detecting unit 150, and the surface driving unit further includes a source driver 120, a gate driver 130, and a %-sequence control. The device 140. The detecting unit 15 is coupled to the voltage converter 11 and the source; the driving &120' secret drive n 12G and the gate driver 13 are driven to drive the panel 16 according to the output of the sequence control. The panel 16 is, for example, a liquid crystal panel. The voltage converter 110 is mainly responsible for the potential conversion of the DC voltage. Because the halogen usually requires a high potential driving voltage, the voltage converter U0 converts the DC voltage received by the display to a higher voltage level to provide The operating voltage required by the source driver 120 and the gate driver 13 is mainly used to drive the pixels in the panel 160. The voltage converter 11 〇 is, for example, a boost voltage. If the driving voltage required for the element is small, then the voltage converter 11 取代 can be replaced by a Buck arcuit. 201037671 1 w CZITW 25575twf.doc/n When the display 100 is turned on, the operating voltage VDC of the voltage converter 110 will rise accordingly, and the detecting unit 15〇 will detect the electrical voltage change of the working voltage when the working voltage is VDC. When the trigger-condition is met, it indicates that the display device 100 is in the power-on state, and the detecting unit 15 rotates a reset signal SRET to the panel driving unit to reset the panel 16A, and clears the noise image that the panel 16 may display. At the moment when the display 100 is turned on, since the timing controller 14 源, the source NMOS driver I20, and the gate driver 130 are not working properly, the panel _ will generate a noise image. Therefore, in this embodiment, the trigger is set to a preset value. When the working voltage VDC is greater than the preset value, it indicates that the display 100 is in the power-on state, and the detecting unit 15 输出 outputs the reset signal SRET. To clear the panel 16〇, to avoid noise images. The reset signal SRET is, for example, a black-faced or a white-faced surface, and can be determined according to the specification of the display device 100 (normally white or n〇rma black). The transfer path of resetting <5 SRET can be transmitted by using the bus controller between the timing controller 140 and the drain driving $12G' or by additionally setting the transfer #. The gamma unit I% is pre-transmitted before the timing control (4) can be normally operated: the t-signal SRET to the secret drive n 12G and the miscellaneous driver 130. Once the source driving state 12 〇 and the operating voltage VDC received by the gate driver reach the voltage level of the axis 昼 fine f, the source driver 120 and the gate driver 130 will immediately reset the surface to reverse 16 〇, avoiding the display being A noise image is generated when the power is turned on. In addition, in the other embodiment of the present invention, the corresponding function pin can be disposed in the gate driver 130 in the source driver 201037671 ru/uju^/^irw 25575twf.doc/n, when the function pin is enabled. When the source driver 12 and the gate driver 13 are automatically reset, the panel 160 is automatically activated. The detection unit bo only needs to be connected to the function pins of the source driver 12 and the gate driver 130, and resets. The signal SR£T can achieve the effect of resetting the panel 16 by enabling its function pin. Therefore, the circuit design of the detecting unit 15 can also be simplified. Those skilled in the art can easily infer the circuit structure of the detecting unit 15A through the disclosure of the present invention, which will not be described here. In the configuration of the circuit, since the panel 160 can use the C0G (Chip on Glass) technology to integrate the gate driver 13〇 on the panel 16〇, and directly use the metal trace on the panel 160 to transmit the working voltage and signal to the gate. Pole driver 130. Therefore, the detecting unit 15A shown in the figure is only coupled to the source driver 120, and can transmit the reset signal SRET to the gate driver 13A via the metal trace on the panel 160. However, the present embodiment is not limited to the circuit architecture of FIG. 1. If the panel 16 is not using the C〇G technology, the detecting unit 150 may be directly coupled to the gate driver 13 () to transmit the reset signal SRET. Fig. 2 is a signal waveform diagram according to the present embodiment. As shown in FIG. 2, when the display 100 is turned on, the 'operating voltage VDC will rise accordingly'. When the operating voltage VDC is greater than the preset voltage VSET, the detecting unit 150 outputs a reset signal SRET to the source driver 12 and the gate. Pole driver 130. Therefore, in the reset period T1, the panel driving unit resets the panel 160 to avoid generation of noise images. The reset period T1 can be calculated when the working voltage VDC reaches the preset voltage VSET level, or after the working voltage VDC reaches 〇o 201037671 ru^u^ziTW 25575twf.doc/n preset voltage VSET level . SECOND EMBODIMENT From the viewpoint of t, the present invention also proposes a driving method of a display suitable for driving a panel. Please refer to Figure 3, Figure = Flow chart of the driving method of the second:: The above driving two next At shell panel drives the operating voltage of the early element (step S310); when the operating voltage of the board driving unit meets the triggering condition, the 2 output-reset signal (step S32G); then, the root panel is avoided to generate The noise image (step S330).彳°唬Reset - In the present embodiment, the triggering condition is met when the operating voltage of the above step S320 is greater than the preset value. β = When the monitor is turned on, the workload will rise accordingly, so it can be 'pre-started with the reset signal to the second= method. Please refer to the above second and second details for the details. ^Technology=Finance (4) The present invention should be readily inferred and will not be described here. Source J early work status list; ^ If the monitor is in the boot sub-output reset field to reset the panel == two =: two: the unit can be avoided;:: production of the birth =; road! ▲ = _: It is directly applied to the present display, and therefore 201037671 25575 twf.d〇c/n - although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the invention to any of ordinary skill in the art. The scope of protection of the present invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of a display system in accordance with a first embodiment of the present invention. Fig. 2 is a signal waveform diagram according to the present embodiment. 3 is a flow chart of a driving method in accordance with a second embodiment of the present invention. [Main component symbol description] 100: Display 110: Voltage converter 120: Source driver 130: Gate driver 140: Timing controller 150: Detection unit 160: Panel VDC: Operating voltage SRET: Reset signal VSET: Preset Voltage T1: reset period S310~S330: steps