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

Description

Bi-stable display and driving method thereof

The present invention relates to a flat display technology, and more particularly to a bi-stable display and a method of driving the same.

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. .

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.

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.

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.

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.

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.

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.

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.

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.

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.

In an embodiment of the invention, the bistable display panel comprises at least a microcup electrophoretic display panel.

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.

It is to be understood that the foregoing general description and claims

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

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.

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.

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.

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.

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.

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.

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.

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 .

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.

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)).

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 .

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.

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.

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.

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.

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.

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).

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.

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.

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. . . Bistable display

101. . . Bistable display panel

103. . . Drive unit

105. . . Timing controller

107. . . Drive voltage generator

109. . . Driver chip

111. . . Plastic substrate

113‧‧‧Transparent conductive layer

115‧‧‧microcup array

117‧‧‧Encapsulation layer

119‧‧‧Adhesive layer

121‧‧‧ Conductive backplane

V _SET1 ‧‧‧First set of drive voltage values

V _SET2 ‧‧‧Second group drive voltage value

V _GH ‧‧‧Maximum gate turn-on voltage

V _GL ‧‧‧lower gate closing voltage

V _DP1 ‧‧‧First positive polarity data voltage

V _DN1 ‧‧‧first negative polarity data voltage

V _{comH1 ‧‧‧first} positive common voltage

V _{comL1 ‧‧‧first} negative common voltage

V _DP2 ‧‧‧second positive data voltage

V _DN2 ‧‧‧second negative data voltage

V _{comH2 ‧‧‧second} positive common voltage

V _{comL2 ‧‧‧second} negative common voltage

t‧‧‧Time

△V1~△V4‧‧‧ differential pressure

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

The following drawings are a part of the specification of the invention, and illustrate the embodiments of the invention

FIG. 1A is a schematic diagram of a bistable display 10 according to an embodiment of the invention.

FIG. 1B is a schematic structural diagram of a bistable display panel 101 according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing the driving of the bi-stable display 10 according to an embodiment of the present invention.

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. . . Bistable display

101. . . Bistable display panel

103. . . Drive unit

105. . . Timing controller

107. . . Drive voltage generator

109. . . Driver chip

V _SET1 . . . First set of drive voltage values

V _SET2 . . . Second set of drive voltage values

V _GH . . . Maximum gate turn-on voltage

V _GL . . . Minimum gate closing voltage

V _DP1 . . . First positive data voltage

V _DN1 . . . First negative data voltage

V _comH1 . . . First positive common voltage

V _comL1 . . . First negative common voltage

V _DP2 . . . Second positive data voltage

V _DN2 . . . Second negative data voltage

V _comH2 . . . Second positive common voltage

V _comL2 . . . Second negative common voltage

Claims (13)

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. 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. 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. 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. The bi-stable display of claim 1, wherein the bistable display panel is a microcup electrophoretic display panel. 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. 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. 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. 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. 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. 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. 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. 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.