TWI436330B - Bistable display and method of driving panel thereof - Google Patents

Bistable display and method of driving panel thereof Download PDF

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TWI436330B
TWI436330B TW100115931A TW100115931A TWI436330B TW I436330 B TWI436330 B TW I436330B TW 100115931 A TW100115931 A TW 100115931A TW 100115931 A TW100115931 A TW 100115931A TW I436330 B TWI436330 B TW I436330B
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voltage
driving
positive
negative
polarity data
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TW201246154A (en
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Ching Yen Tsai
Feng Sheng Lin
Chun Chi Lai
Kuo Hsing Cheng
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Au Optronics Corp
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Description

雙穩態顯示器及其面板的驅動方法Bi-stable display and driving method thereof

本發明是有關於一種平面顯示技術，且特別是有關於一種雙穩態顯示器及其面板的驅動方法。The present invention relates to a flat display technology, and more particularly to a bi-stable display and a method of driving the same.

雙穩態顯示器(bistable display)是一種使用雙穩態介質來進行顯示的顯示器，而要達成雙穩態顯示的技術包括有電子墨水(electronic ink,E-Ink)顯示、膽固醇液晶顯示(cholesteric liquid crystal display,ChLCD)、電泳顯示(electro-phoretic display,EPD)、電濕潤顯示(electrowetting display,EWD)或快速響應液態粉顯示(quick response-liquid powder display,QR-LPD)等顯示技術。而且，隨著可攜式電子產品的日益普及，採用雙穩態顯示技術的可撓性顯示器(如電子紙(e-paper)、電子書(e-book)等)也逐漸地受到市場的關注。A bistable display is a display that uses bistable media for display, and the technology to achieve bistable display includes electronic ink (E-Ink) display, cholesteric liquid display (cholesteric liquid) Display technology such as crystal display, ChLCD, electro-phoretic display (EPD), electrowetting display (EWD) or quick response-liquid powder display (QR-LPD). Moreover, with the increasing popularity of portable electronic products, flexible displays using bistable display technology (such as e-paper, e-book, etc.) are gradually gaining market attention. .

一般而言，電子紙與電子書係採用電泳顯示(EPD)技術來達到顯示影像的目的。以黑白色的電子書為例，其各畫素主要是由摻雜有白色帶電粒子(particle)的黑色電泳液形成於不同的微杯(micro-cups)中所構成，並且透過施加電壓的方式以驅動白色帶電粒子移動，從而致使各畫素得以分別顯示黑色、白色或是不同階調的灰色。In general, electronic paper and e-books use electrophoretic display (EPD) technology to achieve image display. Taking black and white e-books as an example, each pixel is mainly formed by forming a black electrophoretic liquid doped with white charged particles in different micro-cups, and transmitting a voltage. To drive the white charged particles to move, so that each pixel can display black, white or different tone gray.

而且，現行電子書係藉由所施加之電壓所形成的電場方向與推動白色帶電粒子的時間長短以進行畫素灰階的轉換。當電子書所顯示的畫面已穩定，且處於關機的狀態下時，電子書於下一次開機後所顯示的畫面會維持其關機時所顯示的畫面，但是基於結構中黑色電泳液與白色帶電粒子會有布朗運動、黏滯係數降低、重力…等問題，這將會造成電子書於再次開機後所顯示之畫面的白度(假如電子書關機時所顯示的畫面為白色畫面)或黑度(假如電子書關機時所顯示的畫面為黑色畫面)穩態降低(因為各微杯中的白色帶電粒子在電子書關機時會堆積地比較鬆散與不穩定)，進而導致應該顯示白色與黑色的畫面會各別偏向淺灰色與深灰色，亦即色偏。Moreover, the current electronic book performs the conversion of the pixel gray scale by the direction of the electric field formed by the applied voltage and the length of time for pushing the white charged particles. When the screen displayed by the e-book is stable and is in the state of being turned off, the screen displayed by the e-book after the next power-on will maintain the screen displayed when it is turned off, but based on the black electrophoresis liquid and the white charged particles in the structure. There will be problems such as Brownian motion, reduced viscous coefficient, gravity, etc., which will cause the whiteness of the picture displayed after the e-book is turned on again (if the picture displayed when the e-book is turned off is a white picture) or blackness ( If the e-book is turned off, the screen displayed is black.) The steady state is reduced (because the white charged particles in each microcup will be loose and unstable when the e-book is turned off), which will result in a white and black screen. Will be biased towards light gray and dark gray, that is, color cast.

而為了要解決這樣的問題，傳統技藝會在電子書的關機流程前施加一種特定交流擺動波形(specific AC shaking waveform)至各畫素的畫素電極(pixel electrode)(可見得，關聯於各畫素的資料訊號為交流形式)，藉以讓各微杯中的白色帶電粒子堆積地更加緊密與更加地穩定。如此一來，電子書於再次開機後所顯示之畫面的白度或黑度穩態就得以維持，從而不會有色偏的現象產生。In order to solve such problems, the traditional art will apply a specific AC shaking waveform to the pixel electrode of each pixel before the shutdown process of the e-book (visible, associated with each painting). The data signal of the prime is in the form of communication), so that the white charged particles in each microcup are more closely packed and more stable. In this way, the whiteness or blackness of the picture displayed by the e-book after being turned on again is maintained, so that no color shift occurs.

在電子書之關機流程前所施加的特定交流擺動波形雖然可以提升電子書於關機前所最終顯示之已穩定畫面的穩態性，但是由於所施加的特定交流擺動波形可能會造成各畫素之共用電極(common electrode)所接收的共用電壓(common voltage,Vcom)產生變化，進而使得交流形式之共用電壓的低電壓準位(VcomL，亦即負極性共同電壓)有可能會低於用以關閉各畫素的最低閘關閉電壓(VGL )。如此一來，這將會引發不正常的電流以流向至用以驅動電子書中電泳顯示面板的驅動晶片(driver IC)，從而導致驅動晶片有可能損毀。The specific AC swing waveform applied before the shutdown process of the e-book can improve the steady state of the stabilized picture finally displayed by the e-book before the shutdown, but the specific AC swing waveform applied may cause each pixel. The common voltage (Vcom) received by the common electrode changes, so that the low voltage level of the common voltage in the AC form (VcomL, that is, the negative common voltage) may be lower than that used to turn off The lowest gate-off voltage (V GL ) of each pixel. As a result, this will cause an abnormal current to flow to the driver IC for driving the electrophoretic display panel in the e-book, thereby causing the drive wafer to be damaged.

本發明提供一種雙穩態顯示器，其包括：雙穩態顯示面板與驅動裝置。驅動裝置耦接雙穩態顯示面板，用以於雙穩態顯示器處於非關機流程下，利用第一組驅動電壓值來驅動雙穩態顯示面板，並且於雙穩態顯示器處於關機流程下，利用第二組驅動電壓值來驅動雙穩態顯示面板。其中，第一組驅動電壓值相異於第二組驅動電壓值。The invention provides a bi-stable display comprising: a bistable display panel and a driving device. The driving device is coupled to the bistable display panel for driving the bistable display panel with the first set of driving voltage values in the non-shutdown process, and is used in the shutdown process of the bi-stable display. The second set of drive voltage values drives the bistable display panel. Wherein, the first set of driving voltage values are different from the second set of driving voltage values.

本發明另提供一種適於驅動雙穩態顯示器中之雙穩態顯示面板的驅動方法，其包括：於雙穩態顯示器處於非關機流程下，利用第一組驅動電壓值來驅動雙穩態顯示面板；以及於雙穩態顯示器處於關機流程下，利用第二組驅動電壓值來驅動雙穩態顯示面板。其中，第一組驅動電壓值相異於第二組驅動電壓值。The present invention further provides a driving method suitable for driving a bi-stable display panel in a bi-stable display, comprising: driving a bistable display with a first set of driving voltage values when the bi-stable display is in a non-shutdown process The panel; and the bistable display is driven by the second set of drive voltage values while the bistable display is in the shutdown process. Wherein, the first set of driving voltage values are different from the second set of driving voltage values.

於本發明的一實施例中，第一組驅動電壓值至少包括第一正極性資料電壓、第一負極性資料電壓、第一正極性共同電壓與第一負極性共同電壓；而第二組驅動電壓值至少包括第二正極性資料電壓、第二負極性資料電壓、第二正極性共同電壓與第二負極性共同電壓。In an embodiment of the invention, the first set of driving voltage values includes at least a first positive polarity data voltage, a first negative polarity data voltage, a first positive common voltage and a first negative common voltage; and the second set of driving The voltage value includes at least a second positive polarity data voltage, a second negative polarity data voltage, a second positive polarity common voltage, and a second negative polarity common voltage.

於本發明的一實施例中，第二正極性資料電壓小於第一正極性資料電壓；第二負極性資料電壓大於第一負極性資料電壓；第二正極性共同電壓小於第一正極性共同電壓；而第二負極性共同電壓大於第一負極性共同電壓。In an embodiment of the invention, the second positive polarity data voltage is less than the first positive polarity data voltage; the second negative polarity data voltage is greater than the first negative polarity data voltage; and the second positive polarity common voltage is less than the first positive polarity common voltage And the second negative common voltage is greater than the first negative common voltage.

於本發明的一實施例中，第一正極性資料電壓與第一負極性資料電壓之間的壓差大於第二正極性資料電壓與第二負極性資料電壓之間的壓差；而第一正極性共同電壓與第一負極性共同電壓之間的壓差大於第二正極性共同電壓與第二負極性共同電壓之間的壓差。In an embodiment of the invention, a voltage difference between the first positive polarity data voltage and the first negative polarity data voltage is greater than a voltage difference between the second positive polarity data voltage and the second negative polarity data voltage; The voltage difference between the positive common voltage and the first negative common voltage is greater than the pressure difference between the second positive common voltage and the second negative common voltage.

於本發明的一實施例中，雙穩態顯示面板至少包括微杯式電泳顯示面板。In an embodiment of the invention, the bistable display panel comprises at least a microcup electrophoretic display panel.

基於上述，本發明主要是在雙穩態顯示器處於非關機流程(例如處於正常操作)下，利用具有較大壓差的正負極性資料電壓與具有較大壓差的正負極性共同電壓來產生用以驅動雙穩態顯示面板的驅動波形，並且在雙穩態顯示器處於關機流程下，利用具有較小壓差的正負極性資料電壓與具有較小壓差的正負極性共同電壓來產生前述特定交流擺動波形以驅動雙穩態顯示面板。如此一來，就算在雙穩態顯示器的關機流程前施加前述的特定交流擺動波形至各畫素的畫素電極，也不會讓交流形式之共用電壓的低電壓準位(亦即負極性共同電壓)低於用以關閉各畫素的最低閘關閉電壓(VGL )。藉此，不但可以有效地避免因施加特定交流擺動波形所造成雙穩態顯示面板之驅動晶片有可能損毀的窘境，而且還可以讓各微杯中的白色帶電粒子在雙穩態顯示器關機後堆積地更加緊密與更加地穩定，從而讓雙穩態顯示器於再次開機後所顯示之畫面的白度或黑度穩態得以維持而不會有色偏的現象。Based on the above, the present invention is mainly used when a bi-stable display is in a non-shutdown process (for example, under normal operation), using a positive and negative polarity data voltage having a large differential pressure and a positive and negative polarity common voltage having a large differential pressure to generate Driving the driving waveform of the bistable display panel, and using the positive and negative polarity data voltages with a small differential pressure and the positive and negative polarity common voltages with a small differential pressure to generate the aforementioned specific AC swing waveform under the shutdown process To drive the bistable display panel. In this way, even if the specific AC swing waveform is applied to the pixel electrodes of each pixel before the shutdown process of the bi-stable display, the low voltage level of the common voltage of the AC form is not allowed (that is, the negative polarity is common. The voltage is lower than the lowest gate-off voltage (V GL ) used to turn off each pixel. Thereby, not only can the environment of the bistable display panel which is caused by the application of the specific AC oscillating waveform be damaged, but also the white charged particles in the microcups can be stacked after the bistable display is turned off. The ground is more compact and more stable, so that the whiteness or blackness of the picture displayed by the bi-stable display after being turned on again is maintained without color shift.

應瞭解的是，上述一般描述及以下具體實施方式僅為例示性及闡釋性的，其並不能限制本發明所欲主張之範圍。It is to be understood that the foregoing general description and claims

現將詳細參考本發明之示範性實施例，在附圖中說明所述示範性實施例之實例。另外，凡可能之處，在圖式及實施方式中使用相同標號的元件/構件代表相同或類似部分。DETAILED DESCRIPTION OF THE INVENTION Reference will now be made in detail to the exemplary embodiments embodiments In addition, wherever possible, the same reference numerals in the drawings

圖1A繪示為本發明一實施例之雙穩態顯示器(bistable display)10的示意圖。請參照圖1A，雙穩態顯示器10包括雙穩態顯示面板(bistable display panel)101與驅動裝置(driving device)103。於本實施例中，雙穩態顯示面板101包括有多條掃描線(scan line，未繪示)、多條資料線(data line，未繪示)，以及多個畫素(pixel，未繪示)。其中，資料線大體與掃描線垂直設置；而所有畫素係以矩陣方式排列，且其各別會與對應的資料線以及掃描線電性連接。FIG. 1A is a schematic diagram of a bistable display 10 according to an embodiment of the invention. Referring to FIG. 1A, the bi-stable display 10 includes a bistable display panel 101 and a driving device 103. In this embodiment, the bistable display panel 101 includes a plurality of scan lines (not shown), a plurality of data lines (not shown), and a plurality of pixels (pixel, unpainted). Show). The data lines are generally arranged perpendicular to the scan lines; and all the pixels are arranged in a matrix, and each of them is electrically connected to the corresponding data line and the scan line.

於此值得一提的是，本實施例之雙穩態顯示面板101可以是微杯式電泳顯示面板，但並不限制於此，其亦可為其他類型的雙穩態顯示面板，例如：電子墨水顯示面板、電濕潤顯示面板、快速響應液態粉顯示面板或膽固醇液晶顯示面板。若雙穩態顯示面板101為微杯式電泳顯示面板的話，則各畫素可由摻雜有白色帶電粒子的黑色電泳液形成於不同的微杯中所構成。It should be noted that the bistable display panel 101 of the embodiment may be a microcup type electrophoretic display panel, but is not limited thereto, and may be other types of bistable display panels, for example, electronic Ink display panel, electrowetting display panel, fast response liquid powder display panel or cholesterol liquid crystal display panel. If the bistable display panel 101 is a microcup electrophoretic display panel, each pixel can be formed by forming a black electrophoretic liquid doped with white charged particles in different microcups.

更清楚來說，圖1B繪示為本發明一實施例之雙穩態顯示面板101的結構示意圖。請參照圖1B，圖1B所示之雙穩態顯示面板101為一微杯式電泳顯示面板，且其可以包括有塑膠基板(PET plastic)111、透明導電層(transparent conductor，例如ITO)113、微杯陣列(micro-cup array)115、封裝層(sealing layer)117、粘合層(adhesive layer)119，以及導電背板(pattered conductor)121。其中，微杯陣列115配置於透明導電層111與導電背板121之間，且微杯陣列115的每一微杯中具有多個(例如白色)帶電粒子與充滿(例如黑色)電泳顯示液。另外，塑膠基板111配置在透明導電層113上；封裝層117配置於微杯陣列115與導電背板121之間；而粘合層119則配置於封裝層117與導電背板121之間。More specifically, FIG. 1B is a schematic structural view of a bistable display panel 101 according to an embodiment of the present invention. Referring to FIG. 1B, the bistable display panel 101 shown in FIG. 1B is a microcup electrophoretic display panel, and may include a plastic substrate 111, a transparent conductive layer (eg, ITO) 113, A micro-cup array 115, a sealing layer 117, an adhesive layer 119, and a conductive patterned reflector 121. The microcup array 115 is disposed between the transparent conductive layer 111 and the conductive back plate 121, and each microcup of the microcup array 115 has a plurality of (eg, white) charged particles and a filled (eg, black) electrophoretic display liquid. In addition, the plastic substrate 111 is disposed on the transparent conductive layer 113; the encapsulation layer 117 is disposed between the microcup array 115 and the conductive back plate 121; and the adhesive layer 119 is disposed between the encapsulation layer 117 and the conductive back plate 121.

基本上，透過供電給導電背板121及透明導電層113形成正負電場來驅動例如帶正電的白色粒子移動，藉以形成眼睛所看到的圖案。以圖1B為例，右邊導電背板121所產生的負電場與右邊透明導電層113所產生的正電場會會驅使微杯中的白色帶電粒子移動至導電背板121端，因此人眼會看到黑色；而左邊導電背板121所產生的正電場與左邊透明導電層113所產生的負電場會驅使微杯中的白色帶電粒子移動至透明導電層113端，人眼因此看到白色。當停止供電時，微杯中的白色帶電粒子會因物理特性而維持在當下的位置，直到再度供電時，這些白色帶電粒子才會再度被驅動，而這就是所謂『雙穩態』特性。Basically, a positive and negative electric field is formed by supplying power to the conductive back plate 121 and the transparent conductive layer 113 to drive, for example, positively charged white particles to move, thereby forming a pattern seen by the eye. Taking FIG. 1B as an example, the negative electric field generated by the right conductive back plate 121 and the positive electric field generated by the transparent conductive layer 113 on the right side will drive the white charged particles in the microcup to move to the end of the conductive back plate 121, so the human eye will see To the black; the positive electric field generated by the left conductive back plate 121 and the negative electric field generated by the left transparent conductive layer 113 will drive the white charged particles in the microcup to move to the end of the transparent conductive layer 113, so that the human eye sees white. When the power supply is stopped, the white charged particles in the microcup will remain in the current position due to physical properties, and the white charged particles will be driven again when the power is supplied again, which is called the "bistable" characteristic.

另外，驅動裝置103耦接雙穩態顯示面板101，用以於雙穩態顯示器10處於非關機流程(non-shutdown procedure)(例如處於正常操作(normal operation)，但並不限制於此)下，利用第一組驅動電壓值VSET1 來驅動雙穩態顯示面板101，並且於雙穩態顯示器10處於關機流程(shutdown procedure)(例如使用者欲關閉雙穩態顯示器10或顯示器進入預設之省電模式時，則雙穩態顯示器10會隨即進入關機流程，反之，則雙穩態顯示器10會處於非關機流程)下，利用第二組驅動電壓值VSET2 來驅動雙穩態顯示面板101。其中，第一組驅動電壓值VSET1 相異於第二組驅動電壓值VSET2 ，容後再詳述。In addition, the driving device 103 is coupled to the bistable display panel 101 for the non-shutdown procedure of the bi-stable display 10 (eg, in a normal operation, but not limited thereto). Driving the bi-stable display panel 101 with the first set of driving voltage values V SET1 and in the shutdown procedure of the bi-stable display 10 (eg, the user wants to turn off the bi-stable display 10 or the display enters the preset In the power saving mode, the bi-stable display 10 will immediately enter the shutdown process. Otherwise, the bi-stable display 10 will be in the non-shutdown process, and the second set of driving voltage values V SET2 is used to drive the bi-stable display panel 101. . The first set of driving voltage values V SET1 is different from the second set of driving voltage values V SET2 , which will be described in detail later.

更清楚來說，驅動裝置103包括時序控制器(timing controller,T-con)105、驅動電壓產生器(driving voltage generator)107，以及驅動晶片(driver IC)109。其中，驅動電壓產生器107耦接時序控制器105，用以產生第一組驅動電壓值(a first set of driving voltage values)VSET1 與第二組驅動電壓值(a second set of driving voltage values)VSET2 。而且，驅動電壓產生器107受時序控制器105的控制以於雙穩態顯示器10處於正常操作下，輸出第一組驅動電壓值VSET1 ，並於雙穩態顯示器10處於關機流程下，輸出第二組驅動電壓值VSET2 。甚至，驅動電壓產生器107還會受時序控制器105的控制以於雙穩態顯示器10處於正常操作下，輸出用以致能雙穩態顯示面板101內各畫素的最高閘開啟電壓VGH 以及輸出用以關閉穩態顯示面板101內各畫素的最低閘關閉電壓VGL 。More specifically, the driving device 103 includes a timing controller (T-con) 105, a driving voltage generator 107, and a driver IC 109. The driving voltage generator 107 is coupled to the timing controller 105 for generating a first set of driving voltage values V SET1 and a second set of driving voltage values. V SET2 . Moreover, the driving voltage generator 107 is controlled by the timing controller 105 to output the first group of driving voltage values V SET1 under the normal operation of the bi-stable display 10, and is in the shutdown process of the bi-stable display 10, and outputs the first Two sets of drive voltage values V SET2 . Even the driving voltage generator 107 is controlled by the timing controller 105 to output the highest gate-on voltage V GH for enabling each pixel in the bistable display panel 101 under normal operation of the bi-stable display 10 and The lowest gate-off voltage V GL for turning off each pixel in the steady-state display panel 101 is output.

於本實施例中，驅動電壓產生器107所產生的第一組驅動電壓值VSET1 包括第一正極性資料電壓(positive data voltage)VDP1 、第一負極性資料電壓(negative data voltage)VDN1 、第一正極性共同電壓(positive common voltage)VcomH1 與第一負極性共同電壓(negative common voltage)VcomL1 ；另外，驅動電壓產生器107所產生的第二組驅動電壓值VSET2 包括第二正極性資料電壓VDP2 、第二負極性資料電壓VDN2 、第二正極性共同電壓VcomH2 與第二負極性共同電壓VcomL2 。其中，第二正極性資料電壓VDP2 小於第一正極性資料電壓VDP1 ；第二負極性資料電壓VDN2 大於第一負極性資料電壓VDN1 ；第二正極性共同電壓VcomH2 小於第一正極性共同電壓VcomH1 ；而第二負極性共同電壓VcomL2 大於第一負極性共同電壓VcomL1 。而且，第一與第二正極性資料電壓VDP1 與VDP2 以及第一與第二負極性資料電壓VDN1 與VDN2 例如可以施加至圖1B的導電背板121；另外，第一與第二正極性共同電壓VcomH1 與VcomH2 以及第一與第二負極性共同電壓VcomL1 與VcomL2 例如可以施加至圖1B的透明導電層113。In this embodiment, the first set of driving voltage values V SET1 generated by the driving voltage generator 107 includes a first positive data voltage V DP1 and a first negative data voltage V DN1 . a first positive common voltage V comH1 and a first negative common voltage V comL1 ; in addition, the second set of driving voltage values V SET2 generated by the driving voltage generator 107 includes a second The positive polarity data voltage V DP2 , the second negative polarity data voltage V DN2 , the second positive polarity common voltage V comH2 , and the second negative polarity common voltage V comL2 . The second positive polarity data voltage V DP2 is smaller than the first positive polarity data voltage V DP1 ; the second negative polarity data voltage V DN2 is greater than the first negative polarity data voltage V DN1 ; and the second positive polarity common voltage V comH2 is smaller than the first positive electrode The common negative voltage V comH1 ; and the second negative common voltage V comL2 is greater than the first negative common voltage V comL1 . Moreover, the first and second positive polarity data voltages V DP1 and V DP2 and the first and second negative polarity data voltages V DN1 and V DN2 may be applied, for example, to the conductive backplate 121 of FIG. 1B; in addition, the first and second The positive common voltages V comH1 and V comH2 and the first and second negative common voltages V comL1 and V comL2 can be applied, for example, to the transparent conductive layer 113 of FIG. 1B.

換言之，第一正極性資料電壓VDP1 與第一負極性資料電壓VDN1 之間的壓差(voltage difference)大於第二正極性資料電壓VDP2 與第二負極性資料電壓VDN2 之間的壓差，而第一正極性共同電壓VcomH1 與第一負極性共同電壓VcomL1 之間的壓差大於第二正極性共同電壓VcomH2 與第二負極性共同電壓VcomL2 之間的壓差。可見得，第一組驅動電壓值VSET1 相異於第二組驅動電壓值VSET2 。換個方式來說，第二組驅動電壓值VSET2 的絕對值會小於第一組驅動電壓值VSET1 。舉例來說，第二正極性資料電壓VDP2 的絕對值小於第一正極性資料電壓VDP1 ；第二負極性資料電壓VDN2 的絕對值小於第一負極性資料電壓VDN1 ；第二正極性共同電壓VcomH2 的絕對值小於第一正極性共同電壓VcomH1 ；以及第二負極性共同電壓VcomL2 的絕對值小於第一負極性共同電壓VcomL1 。In other words, the voltage difference between the first positive polarity data voltage V DP1 and the first negative polarity data voltage V DN1 is greater than the voltage between the second positive polarity data voltage V DP2 and the second negative polarity data voltage V DN2 . Poor, and the voltage difference between the first positive common voltage V comH1 and the first negative common voltage V comL1 is greater than the voltage difference between the second positive common voltage V comH2 and the second negative common voltage V comL2 . It can be seen that the first set of driving voltage values V SET1 is different from the second set of driving voltage values V SET2 . Alternatively , the absolute value of the second set of drive voltage values V SET2 will be less than the first set of drive voltage values V SET1 . For example, the absolute value of the second positive polarity data voltage V DP2 is less than the first positive polarity data voltage V DP1 ; the absolute value of the second negative polarity data voltage V DN2 is less than the first negative polarity data voltage V DN1 ; The absolute value of the common voltage V comH2 is smaller than the first positive common voltage V comH1 ; and the absolute value of the second negative common voltage V comL2 is smaller than the first negative common voltage V comL1 .

另一方面，驅動晶片109耦接雙穩態顯示面板101、時序控制器105與驅動電壓產生器107。於本實施例中，驅動晶片109受時序控制器105的控制以於雙穩態顯示器10處於正常操作下，接收來自於驅動電壓產生器107所輸出的第一組驅動電壓值VSET1 、最高閘開啟電壓VGH 以及最低閘關閉電壓VGL 以驅動雙穩態顯示面板101，並於雙穩態顯示器10處於關機流程下，接收來自於驅動電壓產生器107所輸出的第二組驅動電壓值VSET2 以驅動雙穩態顯示面板101。On the other hand, the driving chip 109 is coupled to the bistable display panel 101, the timing controller 105, and the driving voltage generator 107. In this embodiment, the driving chip 109 is controlled by the timing controller 105 to receive the first group of driving voltage values V SET1 and the highest gate output from the driving voltage generator 107 when the bi-stable display 10 is in normal operation. Turning on the voltage V GH and the lowest gate turn-off voltage V GL to drive the bistable display panel 101, and receiving the second set of driving voltage values V from the driving voltage generator 107 when the bi-stable display 10 is in the shutdown process SET2 drives the bistable display panel 101.

可見得，驅動晶片109為一顆具有閘極驅動晶片(gate driver IC)、源極驅動器晶片(source driver IC)以及共用電極驅動晶片(common electrode driver IC)的整合式驅動晶片(integrated driver IC)。其中，驅動晶片109用以反應於時序控制器105的控制而依據驅動電壓產生器107所輸出的最高閘開啟電壓VGH 以及最低閘關閉電壓VGL 來依序輸出掃描訊號(scan signal)，藉以逐一開啟雙穩態顯示面板101內的每一列畫素(亦即：閘極驅動晶片的功效)。另外，驅動晶片109還可以反應於時序控制器105的控制而依據驅動電壓產生器107所輸出的第一組驅動電壓值VSET1 (於雙穩態顯示器10處於正常操作下)或第二組驅動電壓值VSET2 (於雙穩態顯示器10處於關機流程下)來產生多筆資料訊號(data signal)與共用電壓(common voltage,Vcom)，藉以驅動已開啟的列畫素(亦即：源極驅動晶片與的共用電極驅動晶片功效)。As can be seen, the driver chip 109 is an integrated driver IC having a gate driver IC, a source driver IC, and a common electrode driver IC. . The driving chip 109 is configured to sequentially output a scan signal according to the highest gate turn-on voltage V GH and the minimum gate turn-off voltage V GL outputted by the driving voltage generator 107 in response to the control of the timing controller 105. Each column of pixels in the bistable display panel 101 is turned on one by one (ie, the efficacy of the gate driving wafer). In addition, the driving chip 109 may also be responsive to the control of the timing controller 105 depending on the first set of driving voltage values V SET1 (either under normal operation of the bi-stable display 10) or the second group of driving output by the driving voltage generator 107. The voltage value V SET2 (in the shutdown process of the bi-stable display 10) generates a plurality of data signals and a common voltage (Vcom) to drive the opened column pixels (ie, the source) Driving the wafer with the common electrode to drive the wafer)).

於此值得一提的是，前述驅動電壓產生器107例如可以由兩組個別的驅動電路所構成，或者單由一組可調整輸出之驅動電路所構成(圖未示)，藉以反應於時序控制器105的控制而提供並產生第一組驅動電壓值VSET1 與第二組驅動電壓值VSET2 。It should be noted that the driving voltage generator 107 may be composed of two sets of individual driving circuits, or may be composed of a group of adjustable output driving circuits (not shown), thereby reacting to the timing control. The control of the device 105 provides and generates a first set of drive voltage values V SET1 and a second set of drive voltage values V SET2 .

基於上述，圖2繪示為本發明一實施例之雙穩態顯示器10的部份驅動示意圖。請合併參照圖1與圖2，假如在時間t之前，雙穩態顯示器10處於正常操作下。基此條件下，時序控制器105會藉由查表的方式以獲得用以驅動雙穩態顯示面板101內各畫素的驅動資訊(driving information)。如此一來，時序控制器105便會依據所獲得的驅動資訊以控制驅動電壓產生器107產生並輸出第一組驅動電壓值VSET1 、最高閘開啟電壓VGH 以及最低閘關閉電壓VGL 給驅動晶片109，並且控制驅動晶片109依據第一組驅動電壓值VSET1 、最高閘開啟電壓VGH 以及最低閘關閉電壓VGL 來產生用以驅動雙穩態顯示面板101的驅動波形(driving waveform)，而且所產生的驅動波形可以包括有掃描訊號、資料訊號以及共用電壓。Based on the above, FIG. 2 is a partial schematic diagram of the driving of the bi-stable display 10 according to an embodiment of the present invention. Please refer to FIG. 1 and FIG. 2 together, if before the time t, the bi-stable display 10 is in normal operation. Under this condition, the timing controller 105 obtains driving information for driving each pixel in the bistable display panel 101 by means of look-up table. In this way, the timing controller 105 controls the driving voltage generator 107 to generate and output the first group driving voltage value V SET1 , the highest gate opening voltage V GH and the lowest gate closing voltage V GL to the driving according to the obtained driving information. The wafer 109, and the control driving wafer 109 generates a driving waveform for driving the bi-stable display panel 101 according to the first group of driving voltage values V SET1 , the highest gate-on voltage V GH , and the lowest gate-off voltage V GL . Moreover, the generated driving waveform may include a scanning signal, a data signal, and a common voltage.

另一方面，假如在時間t之後，雙穩態顯示器10處於關機流程下。基此條件下，時序控制器105同樣會藉由查表的方式以獲得用以驅動雙穩態顯示面板101內各畫素的驅動資訊。如此一來，時序控制器105便會依據所獲得的驅動資訊以控制驅動電壓產生器107產生並輸出第二組驅動電壓值VSET2 給驅動晶片109，並且控制驅動晶片109依據第二組驅動電壓值VSET2 來產生用以驅動雙穩態顯示面板101的特定交流擺動波形(shaking waveform，如圖2虛線橢圓處)，而所產生的特定交流擺動波形可以包括有資料訊號以及共用電壓，且其頻率考量驅動電路硬體規格與驅動效果，約為50赫茲或為50赫茲以上。On the other hand, if after time t, the bi-stable display 10 is in the shutdown process. Under this condition, the timing controller 105 also obtains driving information for driving each pixel in the bistable display panel 101 by means of look-up table. In this way, the timing controller 105 controls the driving voltage generator 107 to generate and output a second set of driving voltage values V SET2 to the driving wafer 109 according to the obtained driving information, and controls the driving wafer 109 according to the second group driving voltage. The value V SET2 is used to generate a specific alternating waveform for driving the bistable display panel 101, as shown by the dotted ellipse in FIG. 2, and the generated specific AC wobble waveform may include a data signal and a common voltage, and Frequency considerations drive circuit hardware specifications and drive effects, about 50 Hz or more than 50 Hz.

於此，從圖2可以清楚地看出，在雙穩態顯示器10處於正常操作下，驅動裝置103會利用具有較大壓差△V1(較大值減較小值)的正負極性共同電壓{VcomH1 ,VcomL1 }、具有較大壓差△V2(較大值減較小值)的正負極性資料電壓{VDP1 ,VDN1 }、最高閘開啟電壓VGH ，以及最低閘關閉電壓VGL 來產生用以驅動雙穩態顯示面板101的驅動波形。如此一來，雙穩態顯示面板101即會顯示該有的畫面給使用者觀看。另一方面，在雙穩態顯示器10處於關機流程下，驅動裝置103會利用具有較小壓差△V3(較大值減較小值)的正負極性共同電壓{VcomH2 ,VcomL2 }與具有較小壓差△V4(較大值減較小值)的正負極性資料電壓{VDP2 ,VDN2 }來產生用以驅動雙穩態顯示面板101的特定交流擺動波形。在此驅動下，雙穩態顯示面板101即會於雙穩態顯示器10再次開機後顯示其關機時所顯示之最終且穩定的畫面。Here, it can be clearly seen from FIG. 2 that, in the normal operation of the bi-stable display 10, the driving device 103 utilizes a positive and negative common voltage having a large differential pressure ΔV1 (a larger value minus a smaller value). V comH1 , V comL1 }, positive and negative data voltages {V DP1 , V DN1 }, maximum gate turn-on voltage V GH , and minimum gate turn-off voltage V GL with large differential voltage ΔV2 (larger value minus smaller value) A driving waveform for driving the bi-stable display panel 101 is generated. In this way, the bistable display panel 101 displays the existing screen for viewing by the user. On the other hand, when the bi-stable display 10 is in the shutdown process, the driving device 103 utilizes the positive and negative common voltages {V comH2 , V comL2 } having a small differential pressure ΔV3 (larger value minus a smaller value) and has The positive and negative polarity data voltages {V DP2 , V DN2 } of the smaller differential pressure ΔV4 (larger value minus smaller value) are used to generate a specific AC oscillating waveform for driving the bistable display panel 101. Under this drive, the bistable display panel 101 will display the final and stable picture displayed when the bi-stable display 10 is turned off again.

而且，由於已在雙穩態顯示器10的關機流程前施加特定交流擺動波形至各畫素的畫素電極，藉以讓各微杯中的白色帶電粒子堆積地更加緊密與更加地穩定。如此一來，雙穩態顯示器10於再次開機後所顯示之畫面的白度或黑度穩態就得以維持，從而不會有色偏的現象產生。Moreover, since the specific AC wobble waveform is applied to the pixel electrodes of the respective pixels before the shutdown process of the bi-stable display 10, the white charged particles in the respective microcups are more closely packed and more stable. In this way, the whiteness or blackness of the picture displayed by the bi-stable display 10 after being turned on again is maintained, so that no color shift occurs.

再者，由於驅動裝置103在雙穩態顯示器10處於關機流程下會利用具有較小壓差△V3的正負極性共同電壓{VcomH2 ,VcomL2 }與具有較小壓差△V4的正負極性資料電壓{VDP2 ,VDN2 }來產生用以驅動雙穩態顯示面板101的特定交流擺動波形。因此，就算在雙穩態顯示器10的關機流程前施加特定交流擺動波形至各畫素的畫素電極，也不會讓交流形式之共用電壓的低電壓準位(亦即負極性共同電壓VcomL2 )低於用以關閉各畫素的最低閘關閉電壓VGL 。藉此，可有效地避免因施加特定交流擺動波形所造成不正常的電流流向驅動晶片103，以至雙穩態顯示面板101之驅動晶片103有可能損毀的窘境。Furthermore, since the driving device 103 is in the shutdown process, the positive and negative common voltages {V comH2 , V comL2 } having a small differential pressure ΔV3 and the positive and negative polarities having a small differential pressure ΔV4 are utilized . The voltages {V DP2 , V DN2 } are used to generate a specific AC swing waveform for driving the bi-stable display panel 101. Therefore, even if a specific AC wobble waveform is applied to the pixel electrodes of the respective pixels before the shutdown process of the bi-stable display 10, the low voltage level of the common voltage of the AC form is not allowed (that is, the negative common voltage V comL2 ) is lower than the lowest gate-off voltage V GL used to turn off each pixel. Thereby, it is possible to effectively avoid the abnormal current flowing to the driving wafer 103 caused by the application of the specific AC swing waveform, and the driving wafer 103 of the bistable display panel 101 may be damaged.

基於上述實施例所揭示/教示的內容，圖3繪示為本發明一實施例之適於驅動雙穩態顯示器中之雙穩態顯示面板的驅動方法流程圖。請參照圖3，本實施例之驅動方法包括：於雙穩態顯示器處於非關機流程(例如處於正常操作，但並不限制於此)下，利用第一組驅動電壓值來驅動雙穩態顯示面板(步驟S301)；以及於雙穩態顯示器處於關機流程下，利用相異於第一組驅動電壓值的第二組驅動電壓值來驅動雙穩態顯示面板(步驟S303)。Based on the disclosure/teaching of the above embodiments, FIG. 3 is a flow chart showing a driving method suitable for driving a bi-stable display panel in a bi-stable display according to an embodiment of the present invention. Referring to FIG. 3, the driving method of this embodiment includes: driving the bistable display with the first set of driving voltage values when the bi-stable display is in a non-shutdown process (eg, in normal operation, but not limited thereto) The panel (step S301); and in the shutdown process, the second set of driving voltage values different from the first group of driving voltage values are used to drive the bi-stable display panel (step S303).

相似地，第一組驅動電壓值至少包括第一正極性資料電壓、第一負極性資料電壓、第一正極性共同電壓與第一負極性共同電壓；而第二組驅動電壓值至少包括第二正極性資料電壓、第二負極性資料電壓、第二正極性共同電壓與第二負極性共同電壓。其中，第二正極性資料電壓小於第一正極性資料電壓；第二負極性資料電壓大於第一負極性資料電壓；第二正極性共同電壓小於第一正極性共同電壓；而第二負極性共同電壓大於第一負極性共同電壓。換言之，第一正極性資料電壓與第一負極性資料電壓之間的壓差大於第二正極性資料電壓與第二負極性資料電壓之間的壓差；而第一正極性共同電壓與第一負極性共同電壓之間的壓差大於第二正極性共同電壓與第二負極性共同電壓之間的壓差。基此，於步驟S303中係依據第二組驅動電壓值以產生具有較小壓差的特定交流擺動波形來驅動雙穩態顯示面板，從而讓雙穩態顯示面板之各微杯中的白色帶電粒子堆積地更加緊密與更加地穩定，其中所述特定交流擺動波形其頻率考量驅動電路硬體規格與驅動效果，約為50赫茲或50赫茲以上。Similarly, the first set of driving voltage values includes at least a first positive polarity data voltage, a first negative polarity data voltage, a first positive polarity common voltage and a first negative polarity common voltage; and the second set of driving voltage values includes at least a second The positive polarity data voltage, the second negative polarity data voltage, the second positive polarity common voltage, and the second negative polarity common voltage. Wherein the second positive polarity data voltage is less than the first positive polarity data voltage; the second negative polarity data voltage is greater than the first negative polarity data voltage; the second positive polarity common voltage is less than the first positive polarity common voltage; and the second negative polarity commonality The voltage is greater than the first negative common voltage. In other words, the voltage difference between the first positive polarity data voltage and the first negative polarity data voltage is greater than the voltage difference between the second positive polarity data voltage and the second negative polarity data voltage; and the first positive polarity common voltage and the first The voltage difference between the negative common voltages is greater than the voltage difference between the second positive common voltage and the second negative common voltage. Accordingly, in step S303, the bistable display panel is driven according to the second set of driving voltage values to generate a specific AC oscillating waveform having a smaller differential pressure, thereby charging the white in each microcup of the bistable display panel. The particles are more closely packed and more stable, wherein the specific AC wobble waveform has a frequency consideration of the driver circuit hardware specifications and driving effects, and is about 50 Hz or more.

綜上所述，本發明主要是在雙穩態顯示器處於正常操作下，利用具有較大壓差的正負極性資料電壓與具有較大壓差的正負極性共同電壓來產生用以驅動雙穩態顯示面板的驅動波形，並且在雙穩態顯示器處於關機流程下，利用具有較小壓差的正負極性資料電壓與具有較小壓差的正負極性共同電壓來產生所述的特定交流擺動波形以驅動雙穩態顯示面板。如此一來，就算在雙穩態顯示器的關機流程前施加所述的特定交流擺動波形至各畫素的畫素電極，也不會讓交流形式之共用電壓的低電壓準位(亦即負極性共同電壓(VcomL2 ))低於用以關閉各畫素的最低閘關閉電壓(VGL )。藉此，不但可以有效地避免因施加特定交流擺動波形所造成雙穩態顯示面板之驅動晶片有可能損毀的窘境，而且還可以讓各微杯中的白色帶電粒子在雙穩態顯示器關機後堆積更加地緊密與更加地穩定，從而讓雙穩態顯示器於再次開機後所顯示之畫面的白度或黑度穩態得以維持而不會有色偏的現象。除此之外，任何設計、製造或以類似採用相異驅動電壓組以對雙穩態顯示面板進行驅動的手段，均屬於本發明所欲保護的範疇。In summary, the present invention mainly generates a bi-stable display by using a positive-negative data voltage having a large differential pressure and a positive-negative common voltage having a large differential pressure under normal operation of the bi-stable display. The driving waveform of the panel, and the bistable display is in a shutdown process, using a positive and negative polarity data voltage with a small differential pressure and a positive and negative polarity common voltage with a small differential pressure to generate the specific AC oscillating waveform to drive the double Steady state display panel. In this way, even if the specific AC wobble waveform is applied to the pixel electrodes of each pixel before the shutdown process of the bi-stable display, the low voltage level of the common voltage in the AC form (ie, the negative polarity) is not allowed. The common voltage (V comL2 ) is lower than the lowest gate-off voltage (V GL ) used to turn off each pixel. Thereby, not only can the environment of the bistable display panel which is caused by the application of the specific AC oscillating waveform be damaged, but also the white charged particles in the microcups can be stacked after the bistable display is turned off. It is more compact and more stable, so that the whiteness or blackness of the picture displayed by the bi-stable display after being turned on again is maintained without color shift. In addition, any means of designing, manufacturing, or similarly employing a different set of driving voltages to drive the bistable display panel is within the scope of the present invention.

雖然本發明已以實施例揭露如上，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內，當可作些許之更動與潤飾，故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。另外，本發明的任一實施例或申請專利範圍不須達成本發明所揭露之全部目的或優點或特點。此外，摘要部分和標題僅是用來輔助專利文件搜尋之用，並非用來限制本發明之權利範圍。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention.

10．．．雙穩態顯示器10. . . Bistable display

101．．．雙穩態顯示面板101. . . Bistable display panel

103．．．驅動裝置103. . . Drive unit

105．．．時序控制器105. . . Timing controller

107．．．驅動電壓產生器107. . . Drive voltage generator

109．．．驅動晶片109. . . Driver chip

111．．．塑膠基板111. . . Plastic substrate

113‧‧‧透明導電層113‧‧‧Transparent conductive layer

115‧‧‧微杯陣列115‧‧‧microcup array

117‧‧‧封裝層117‧‧‧Encapsulation layer

119‧‧‧粘合層119‧‧‧Adhesive layer

121‧‧‧導電背板121‧‧‧ Conductive backplane

VSET1 ‧‧‧第一組驅動電壓值V SET1 ‧‧‧First set of drive voltage values

VSET2 ‧‧‧第二組驅動電壓值V SET2 ‧‧‧Second group drive voltage value

VGH ‧‧‧最高閘開啟電壓V GH ‧‧‧Maximum gate turn-on voltage

VGL ‧‧‧最低閘關閉電壓V GL ‧‧‧lower gate closing voltage

VDP1 ‧‧‧第一正極性資料電壓V DP1 ‧‧‧First positive polarity data voltage

VDN1 ‧‧‧第一負極性資料電壓V DN1 ‧‧‧first negative polarity data voltage

VcomH1 ‧‧‧第一正極性共同電壓V comH1 ‧‧‧first positive common voltage

VcomL1 ‧‧‧第一負極性共同電壓V comL1 ‧‧‧first negative common voltage

VDP2 ‧‧‧第二正極性資料電壓V DP2 ‧‧‧second positive data voltage

VDN2 ‧‧‧第二負極性資料電壓V DN2 ‧‧‧second negative data voltage

VcomH2 ‧‧‧第二正極性共同電壓V comH2 ‧‧‧second positive common voltage

VcomL2 ‧‧‧第二負極性共同電壓V comL2 ‧‧‧second negative common voltage

t‧‧‧時間t‧‧‧Time

△V1~△V4‧‧‧壓差△V1~△V4‧‧‧ differential pressure

S301、S303‧‧‧本發明一實施例之適於驅動雙穩態顯示器中之雙穩態顯示面板的驅動方法流程圖各步驟S301, S303‧‧ ‧ a method for driving a driving method for driving a bi-stable display panel in a bi-stable display according to an embodiment of the present invention

下面的所附圖式是本發明的說明書的一部分，繪示了本發明的示例實施例，所附圖式與說明書的描述一起說明本發明的原理。The following drawings are a part of the specification of the invention, and illustrate the embodiments of the invention

圖1A繪示為本發明一實施例之雙穩態顯示器(bistable display)10的示意圖。FIG. 1A is a schematic diagram of a bistable display 10 according to an embodiment of the invention.

圖1B繪示為本發明一實施例之雙穩態顯示面板101的結構示意圖。FIG. 1B is a schematic structural diagram of a bistable display panel 101 according to an embodiment of the present invention.

圖2繪示為本發明一實施例之雙穩態顯示器10的驅動示意圖。FIG. 2 is a schematic diagram showing the driving of the bi-stable display 10 according to an embodiment of the present invention.

圖3繪示為本發明一實施例之適於驅動雙穩態顯示器中之雙穩態顯示面板的驅動方法流程圖。3 is a flow chart of a driving method suitable for driving a bistable display panel in a bi-stable display according to an embodiment of the invention.

10．．．雙穩態顯示器10. . . Bistable display

101．．．雙穩態顯示面板101. . . Bistable display panel

103．．．驅動裝置103. . . Drive unit

105．．．時序控制器105. . . Timing controller

107．．．驅動電壓產生器107. . . Drive voltage generator

109．．．驅動晶片109. . . Driver chip

VSET1 ．．．第一組驅動電壓值V SET1 . . . First set of drive voltage values

VSET2 ．．．第二組驅動電壓值V SET2 . . . Second set of drive voltage values

VGH ．．．最高閘開啟電壓V GH . . . Maximum gate turn-on voltage

VGL ．．．最低閘關閉電壓V GL . . . Minimum gate closing voltage

VDP1 ．．．第一正極性資料電壓V DP1 . . . First positive data voltage

VDN1 ．．．第一負極性資料電壓V DN1 . . . First negative data voltage

VcomH1 ．．．第一正極性共同電壓V comH1 . . . First positive common voltage

VcomL1 ．．．第一負極性共同電壓V comL1 . . . First negative common voltage

VDP2 ．．．第二正極性資料電壓V DP2 . . . Second positive data voltage

VDN2 ．．．第二負極性資料電壓V DN2 . . . Second negative data voltage

VcomH2 ．．．第二正極性共同電壓V comH2 . . . Second positive common voltage

VcomL2 ．．．第二負極性共同電壓V comL2 . . . Second negative common voltage

Claims (13)

一種雙穩態顯示器，包括：一雙穩態顯示面板；以及一驅動裝置，耦接該雙穩態顯示面板，用以於該雙穩態顯示器處於非關機流程下，利用一第一組驅動電壓值來驅動該雙穩態顯示面板，並且於該雙穩態顯示器處於關機流程下，利用一第二組驅動電壓值來驅動該雙穩態顯示面板，其中該第一組驅動電壓值至少包括一第一正極性資料電壓、一第一負極性資料電壓、一第一正極性共同電壓與一第一負極性共同電壓，該第二組驅動電壓值至少包括一第二正極性資料電壓、一第二負極性資料電壓、一第二正極性共同電壓與一第二負極性共同電壓，且該關機流程係為關閉該雙穩態顯示器或該雙穩態顯示器進入預設之省電模式；其中，該第一正極性資料電壓與該第一負極性資料電壓之間的壓差大於該第二正極性資料電壓與該第二負極性資料電壓之間的壓差，以及該第一正極性共同電壓與該第一負極性共同電壓之間的壓差大於該第二正極性共同電壓與該第二負極性共同電壓之間的壓差。 A bi-stable display includes: a bi-stable display panel; and a driving device coupled to the bi-stable display panel for utilizing a first set of driving voltages when the bi-stable display is in a non-shutdown process And driving the bistable display panel, and driving the bistable display panel with a second set of driving voltage values, wherein the first set of driving voltage values includes at least one a first positive polarity data voltage, a first negative polarity data voltage, a first positive polarity common voltage and a first negative polarity common voltage, the second set of driving voltage values including at least a second positive polarity data voltage, a first a negative polarity data voltage, a second positive common voltage and a second negative common voltage, and the shutdown process is to turn off the bi-stable display or the bi-stable display to enter a preset power saving mode; a voltage difference between the first positive polarity data voltage and the first negative polarity data voltage is greater than a voltage difference between the second positive polarity data voltage and the second negative polarity data voltage, Pressure difference between the common voltage and the first common voltage of the negative polarity is greater than the first positive pressure differential between the second common voltage and the positive second common negative voltage. 如申請專利範圍第1項所述之雙穩態顯示器，其中該第二組驅動電壓值之絕對值小於該第一組驅動電壓值之絕對值。 The bi-stable display of claim 1, wherein the absolute value of the second set of driving voltage values is less than an absolute value of the first set of driving voltage values. 如申請專利範圍第1項所述之雙穩態顯示器，其中該驅動裝置包括： 一時序控制器；一驅動電壓產生器，耦接該時序控制器，用以產生該第一組驅動電壓值與該第二組驅動電壓值，其中該驅動電壓產生器受該時序控制器的控制以於該雙穩態顯示器處於非關機流程下，輸出該第一組驅動電壓值，並於該雙穩態顯示器處於關機流程下，輸出該第二組驅動電壓值；以及一驅動晶片，耦接該雙穩態顯示面板、該時序控制器與該驅動電壓產生器，其中該驅動晶片受該時序控制器的控制以於該雙穩態顯示器處於非關機流程下，接收來自於該驅動電壓產生器所輸出的該第一組驅動電壓值以驅動該雙穩態顯示面板，並於該雙穩態顯示器處於關機流程下，接收來自於該驅動電壓產生器所輸出的該第二組驅動電壓值以驅動該雙穩態顯示面板。 The bi-stable display of claim 1, wherein the driving device comprises: a timing controller; a driving voltage generator coupled to the timing controller for generating the first set of driving voltage values and the second set of driving voltage values, wherein the driving voltage generator is controlled by the timing controller And the bistable display is in a non-shutdown process, outputting the first set of driving voltage values, and outputting the second set of driving voltage values when the bistable display is in a shutdown process; and a driving chip coupled The bistable display panel, the timing controller and the driving voltage generator, wherein the driving chip is controlled by the timing controller to receive the bistable display in a non-shutdown process, and receive the driving voltage generator And outputting the first set of driving voltage values to drive the bistable display panel, and receiving the second set of driving voltage values from the driving voltage generator when the bi-stable display is in a shutdown process The bistable display panel is driven. 如申請專利範圍第1項所述之雙穩態顯示器，其中該第二正極性資料電壓小於該第一正極性資料電壓；該第二負極性資料電壓大於該第一負極性資料電壓；該第二正極性共同電壓小於該第一正極性共同電壓；以及該第二負極性共同電壓大於該第一負極性共同電壓。 The bi-stable display of claim 1, wherein the second positive polarity data voltage is less than the first positive polarity data voltage; the second negative polarity data voltage is greater than the first negative polarity data voltage; The second positive common voltage is smaller than the first positive common voltage; and the second negative common voltage is greater than the first negative common voltage. 如申請專利範圍第1項所述之雙穩態顯示器，其中該雙穩態顯示面板為微杯式電泳顯示面板。 The bi-stable display of claim 1, wherein the bistable display panel is a microcup electrophoretic display panel. 如申請專利範圍第5項所述之雙穩態顯示器，其中該微杯式電泳顯示面板包括：一透明導電層；一導電背板；以及 一微杯陣列，配置於該透明導電層與該導電背板之間，且該微杯陣列的每一微杯中具有多個帶電粒子與電泳顯示液，其中，該第一與該第二正極性資料電壓以及該第一與該第二負極性資料電壓施加至該導電背板；以及該第一與該第二正極性共同電壓以及該第一與該第二負極性共同電壓施加至該透明導電層。 The bi-stable display of claim 5, wherein the micro-cup electrophoretic display panel comprises: a transparent conductive layer; a conductive back plate; a microcup array disposed between the transparent conductive layer and the conductive backplate, and each microcup of the microcup array has a plurality of charged particles and an electrophoretic display liquid, wherein the first and the second positive electrode a data voltage and the first and second negative data voltages are applied to the conductive backplane; and the first and second positive common voltages and the first and second negative common voltages are applied to the transparent Conductive layer. 如申請專利範圍第6項所述之雙穩態顯示器，其中該微杯式電泳顯示面板更包括：一塑膠基板，配置在該透明導電層上；一封裝層，配置於該微杯陣列與該導電背板之間；以及一粘合層，配置於該封裝層與該導電背板之間。 The bi-stable display device of claim 6, wherein the micro-cup electrophoretic display panel further comprises: a plastic substrate disposed on the transparent conductive layer; an encapsulation layer disposed on the microcup array and the Between the conductive back plates; and an adhesive layer disposed between the package layer and the conductive back plate. 如申請專利範圍第6項所述之雙穩態顯示器，其中該第二正極性資料電壓小於該第一正極性資料電壓；該第二負極性資料電壓大於該第一負極性資料電壓；該第二正極性共同電壓小於該第一正極性共同電壓；以及該第二負極性共同電壓大於該第一負極性共同電壓。 The bi-stable display of claim 6, wherein the second positive polarity data voltage is less than the first positive polarity data voltage; the second negative polarity data voltage is greater than the first negative polarity data voltage; The second positive common voltage is smaller than the first positive common voltage; and the second negative common voltage is greater than the first negative common voltage. 如申請專利範圍第6項所述之雙穩態顯示器，其中該驅動晶片於該雙穩態顯示器處於關機流程下產生一特定交流擺動波形來驅動該雙穩態顯示面板，其中該特定交流擺動波形之頻率實質上大於或等於50赫茲。 The bi-stable display of claim 6, wherein the driving chip generates a specific AC swing waveform to drive the bi-stable display panel when the bi-stable display is in a shutdown process, wherein the specific AC swing waveform The frequency is substantially greater than or equal to 50 Hz. 一種驅動方法，可用於驅動一雙穩態顯示器中的一雙穩態顯示面板，而該驅動方法包括： 於該雙穩態顯示器處於非關機流程下，利用一第一組驅動電壓值來驅動該雙穩態顯示面板，其中該第一組驅動電壓值至少包括一第一正極性資料電壓、一第一負極性資料電壓、一第一正極性共同電壓與一第一負極性共同電壓；以及於該雙穩態顯示器處於關機流程下，利用一第二組驅動電壓值來驅動該雙穩態顯示面板，其中該第二組驅動電壓值至少包括一第二正極性資料電壓、一第二負極性資料電壓、一第二正極性共同電壓與一第二負極性共同電壓，且該關機流程係為關閉該雙穩態顯示器或該雙穩態顯示器進入預設之省電模式，其中，該第一正極性資料電壓與該第一負極性資料電壓之間的壓差大於該第二正極性資料電壓與該第二負極性資料電壓之間的壓差，以及該第一正極性共同電壓與該第一負極性共同電壓之間的壓差大於該第二正極性共同電壓與該第二負極性共同電壓之間的壓差。 A driving method for driving a bistable display panel in a bi-stable display, the driving method comprising: The bistable display is driven by the first set of driving voltage values, wherein the first set of driving voltage values includes at least a first positive polarity data voltage, a first a negative polarity data voltage, a first positive common voltage and a first negative common voltage; and when the bi-stable display is in a shutdown process, driving the bistable display panel with a second set of driving voltage values, The second set of driving voltage values includes at least a second positive polarity data voltage, a second negative polarity data voltage, a second positive common voltage, and a second negative common voltage, and the shutdown process is to close the The bi-stable display or the bi-stable display enters a preset power saving mode, wherein a voltage difference between the first positive polarity data voltage and the first negative polarity data voltage is greater than the second positive polarity data voltage and the a voltage difference between the second negative polarity data voltage, and a voltage difference between the first positive polarity common voltage and the first negative polarity common voltage is greater than the second positive polarity common voltage A second pressure differential between the common negative voltage. 如申請專利範圍第10項所述之驅動方法，其中該第二組驅動電壓值之絕對值小於該第一組驅動電壓值之絕對值。 The driving method of claim 10, wherein the absolute value of the second set of driving voltage values is less than the absolute value of the first set of driving voltage values. 如申請專利範圍第10項所述之驅動方法，其中該第二正極性資料電壓小於該第一正極性資料電壓；該第二負極性資料電壓大於該第一負極性資料電壓；該第二正極性共同電壓小於該第一正極性共同電壓；以及該第二負極性共同電壓大於該第一負極性共同電壓。 The driving method of claim 10, wherein the second positive polarity data voltage is less than the first positive polarity data voltage; the second negative polarity data voltage is greater than the first negative polarity data voltage; the second positive electrode The common common voltage is less than the first positive common voltage; and the second negative common voltage is greater than the first negative common voltage. 如申請專利範圍第12項所述之驅動方法，其中利用該第二組驅動電壓值來驅動該雙穩態顯示面板的步驟更包括：產生一特定交流擺動波形以驅動該雙穩態顯示面板，其中該特定交流擺動波形之頻率實質上大於或等於50赫茲。 The driving method of claim 12, wherein the step of driving the bistable display panel by using the second set of driving voltage values further comprises: generating a specific alternating current swing waveform to drive the bistable display panel, Wherein the frequency of the particular AC wobble waveform is substantially greater than or equal to 50 Hz.
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