TWI427607B - Field sequential liquid crystal display and driving method thereof - Google Patents

Description

Field sequential liquid crystal display and driving method thereof

The present invention relates to a liquid crystal display, and more particularly to a field sequential liquid crystal display using area control and a driving method thereof.

Light Emitting Diode (LED) has the advantages of fast response, easy driving and long life. In recent years, it has gradually replaced the cold cathode tube and become the light source of the liquid crystal display backlight module.

The conventional liquid crystal display uses a color filter to display a color picture in a spatial axis color mixing manner. However, the color filter absorbs part of the color light to reduce the efficiency of light use. Therefore, the industry proposes to display a color picture in a time-axis color mixing manner by using a light-emitting diode with a color-sequence method, as shown in FIG. 1; each of the frames can be further divided into three or more single colors. Sub-frames, such as red (R), green (G), and blue (B), etc., and provide backlighting with light-emitting diodes of opposite colors during each sub-picture. When the human eye's perception channel sequentially perceives the color of all the sub-pictures in the visual persistence time, it can be mixed into a specific color.

Referring to FIG. 2, for example, in a color sequential display with a scanning frequency of 60 Hz, the display time of each display screen is about 16.7 milliseconds (ms), and thus the time allocated for each color sub-picture is only about It is 5.6 milliseconds. In this 5.6 milliseconds, the data writing time t ₁ , the liquid crystal reaction time t ₂ and the diode light emitting time t _{3 are included} . If the diode light emitting time t _{3 is} too short, the display brightness is insufficient; Increasing the driving current of the diode to increase the display brightness, but reducing the luminous efficiency of the light emitting diode.

To improve this problem, it is known to use the area control method to increase the illumination time t ₃ of the diode in each color sub-picture. Referring to Figures 3a-3b, Figure 3a shows a schematic diagram of a zone control display panel, and Figure 3b shows a schematic diagram of the drive timing of the display panel in Figure 3a. The display panel is divided into a first area, a second area, and a third area. In the first to third regions, the liquid crystal operation and the corresponding backlight are independently operated and controlled, as shown in FIG. 3b. In each area, after the data writing is completed (data writing time t ₁ ) and the liquid crystal reaction is completed (liquid crystal reaction time t ₂ ), the light source can be lit without waiting for other areas to complete data writing and liquid crystal reaction. Thereby, the light-emitting time of the diode in each color sub-picture can be extended to t ₃ ' , so that the display brightness can be improved without increasing the driving current of the light-emitting diode.

In addition, in order to increase the brightness of the display screen, black data can be further inserted between consecutive color sub-pictures. For example, in Figure 3c, a black data is inserted between the red sub-picture and the green sub-picture, wherein the display data during the black data period is zero gray scale. However, when the display material is switched from the black data display period to the next color sub-picture (for example, the green sub-picture), since the liquid crystal conversion states of different areas are different, the light leakage of each area to the adjacent area causes the overall display color. Uneven; for example, in the display data of 256 gray scales, the time required for the liquid crystal to change from zero gray scale (L0) to 255 gray scale (L255) is the longest, so the color of the above display screen is uneven in black screen (corresponding to L0) The most obvious when converting between a monochrome image (corresponding to L255). In addition, when the display material is switched from a color sub-picture (for example, a red sub-picture) to a black data display, since the liquid crystal state of the area where the display has been completed has been converted to opaque, the display screen may also have a color unevenness.

For example, in the 3c figure, during the display of the green data, when the liquid crystal reaction of the first region is completed, the light-emitting diode of the first region is lit, and a green screen of L255 gray scale is displayed. At this time, the liquid crystals of the second region and the third region have not reacted to the L255 gray scale, and a small amount of green light emitted by the light-emitting diode of the first region penetrates into the second region and the third region; When the light-emitting diodes of the three regions are lit, the liquid crystals of the first region and the second region have reacted to the L255 gray scale, so that the green light penetrated from the third region to the first region and the second region is more. In this way, in the display screen, a situation in which the green luminance is sequentially decreased from the first region and the second region to the third region is formed, thereby causing the display screen to be uneven in color.

In addition, during the display of the red data, when the liquid crystal reaction of the first region is completed, the light-emitting diode of the first region is lit, and a red sub-picture of the L255 gray scale is displayed. At this time, although the liquid crystals of the second region and the third region do not react to the L255 gray scale, some portions are transparent to light, so that a small amount of red light emitted from the light emitting diode of the first region penetrates into the second region. And the third region; oppositely, when the display of the first region is completed, the first region immediately receives the black data, so that the liquid crystal molecules are quickly converted into the opaque state, so when the light emitting diode of the third region is lit, The liquid crystal molecules of the first region have reacted to the L0 gray scale, so the red light from the third region cannot penetrate to the first region. In this way, in the display screen, a situation in which the red luminance is sequentially increased from the first region and the second region to the third region is formed, thereby causing the display screen to be uneven in color.

In order to solve the problem of light leakage between different regions, it is known to use a separate backlight module that can prevent light leakage in different regions. However, such a backlight module is not only complicated in structure but also has high cost.

In view of this, it is necessary to propose a new field sequential liquid crystal display and a driving method thereof to solve the problem that the color of the display screen is uneven when black data is inserted between different color materials.

The invention provides a field sequential liquid crystal display and a driving method thereof, and the display screen color of the field sequential liquid crystal display is relatively uniform.

The invention provides a field sequential liquid crystal display and a driving method thereof, which can reduce the overall cost and simplify the structure without the need of a partitioned backlight module.

The invention provides a driving method of a field sequential liquid crystal display, which comprises a plurality of display regions. The driving method includes the steps of: sequentially providing a display material of a first color and a black data to a first area for display in a first period; and sequentially providing the display data in a third period later than the first period The display data of the first color and the black data are displayed to a third area; and the black data is displayed to the first area and the third area after displaying the display material of the first color in the third area.

The invention further provides a driving method of a field sequential liquid crystal display, the field sequential liquid crystal display comprising a plurality of display regions. The driving method includes the following steps: sequentially providing a display material of a first color, a black material, and a display material of a second color to a first area during a first period; The display data of the first color, the black data and the display material of the second color are sequentially provided to a third area; and the display of the second color included in the first period and the third period is sequentially provided One of the data has a second liquid crystal reaction time that is longer than a first liquid crystal reaction time of the display material contained in the first color.

The invention further provides a driving method of a field sequential liquid crystal display, the field sequential liquid crystal display comprising a plurality of display regions. The driving method comprises the steps of: sequentially providing a first color display material, a black data and a dark color display data to a first area for display in a first period; and displaying the third color later than the first period Providing the display material of the first color, the black data and the dark color display data to a third area for display; and displaying the black data in the third area after displaying the display material of the first color And the first region and the third region; and the second liquid crystal reaction time included in the first period and the third period relative to the one of the dark color display materials is longer than one of the display materials included in the first color The first liquid crystal reaction time.

The invention further provides a field sequential liquid crystal display comprising a display panel and a source driver. The display panel includes a plurality of display areas for displaying a partial screen of the display screen during different periods of a display screen. The source driver is configured to sequentially input a display material of a first color, a black data, and a display data of a second color to each display area during different periods of the display screen; wherein the source driver displays the display After the last display in the area displays the display material of the first color, the black data is simultaneously provided to all display areas; the different periods of the display screen respectively include a first liquid crystal reaction time relative to one of the display materials of the first color and And a second liquid crystal reaction time relative to the display material of the second color, and the second liquid crystal reaction time is longer than the first liquid crystal reaction time.

The driving method of the field sequential liquid crystal display of the present invention is applicable to a field sequential liquid crystal display using a region control, and preferably uses a light emitting diode as a light source of the backlight module, but is not limited thereto.

The driving method of the field sequential liquid crystal display of the invention is suitable for the field sequential liquid crystal display with black insertion data, and can simultaneously achieve the purpose of improving brightness and increasing the color uniformity of the display picture.

The above and other objects, features, and advantages of the present invention will become more apparent from the accompanying drawings. In the description of the present invention, the same components are denoted by the same reference numerals and will be described in the foregoing.

Referring to FIG. 4, there is shown a schematic diagram of a field sequential liquid crystal display according to an embodiment of the present invention. The field sequential liquid crystal display 1 includes a display panel 10, a plurality of gate drivers 111-113 (in another embodiment, only a single gate driver can be used for control), a plurality of light sources 121-123 and a source driver 13. It will be appreciated that Figure 4 shows only some of the components used to illustrate the invention and other components are omitted. In one embodiment, the gate drivers 111-113 receive, for example, a scan signal of a timing controller to enable pixel cells in a display area, respectively.

The display panel 10 is divided into a plurality of display areas for area control. For example, in the embodiment, the display panel 10 is divided into a first area 101, a second area 102, and a third area 103. In other embodiments, the display panel 10 is divided into a first area 101, a second area 102, and a third area 103. The display panel 10 can also be divided into other numbers of display areas. In this embodiment, each display area is driven by a respective gate driver and provided with backlight by a respective backlight source. For example, in the embodiment, the first area 101 is controlled by the gate driver 111 and is used as the light source 121. The second region 102 is controlled by the gate driver 112 and has the light source 122 as its backlight; the third region 103 is controlled by the gate driver 113 and uses the light source 123 as its backlight. It can be understood that the positions of the light sources 121-123 can be located below or on the side of the display panel 10 to form different types of backlight modules, such as a direct-lit backlight module or an edge-lit backlight module. In addition, although the light sources 121-123 are shown as light-emitting diodes in FIG. 4, they are not intended to limit the present invention. The light sources 121-123 may also be other light sources conventionally used in backlight modules. The gate controllers 111-113 (which may also use only a single gate controller according to design requirements) and the light sources 121-123 may be simultaneously controlled by a timing controller; in other embodiments, the light sources 121 ~123 can also be controlled by other components.

Referring to FIG. 4 again, in a first period T _{1 of} a display frame, the source driver 13 sequentially inputs display data of each color sub-picture to the first area 101, for example, sequentially input. Display data of a red (R), a black data (BL), a green (G), and a blue (B) picture, but the color sub-picture is not limited to three colors of RGB, for example, may be cyan ( C), yellow (Y) and magenta (M) or other color sub-pictures. The gate driver 111 opens the columns of pixels of the first region 101 in cooperation with the display materials of the respective color sub-pictures, and the light source 121 provides a backlight of the corresponding color with respect to the display materials of the respective color sub-pictures. In a second period T _{2 of the} display screen, the source driver 13 sequentially inputs the display data of each color sub-picture to the second area 102, and the gate driver 112 cooperates with each color sub-character. The display data of the screen opens each column of pixels of the second region 102, and the light source 122 provides a backlight of a corresponding color with respect to the display material of each color sub-screen. In a third period T _{3 of the} display screen, which is later than the second period T ₂ , the source driver 13 sequentially inputs the display data of each color sub-picture to the third area 103, and the gate driver 113 cooperates. The display data of each color sub-picture opens each column of pixels of the third area 103, and the light source 123 provides a backlight of the corresponding color with respect to the display material of each color sub-picture. In a display screen, the first area 101 to the third area 103 respectively display a part of the screen of the display screen.

Please refer to FIG. 5a, which shows a schematic diagram of a driving method of the field sequential liquid crystal display according to the first embodiment of the present invention. The purpose of this embodiment is to eliminate the problem of uneven brightness of the picture of the color sub-picture before the difference black data.

FIG. 5a, t ₁ denotes a display data write time of each region, t ₂ represents the reaction time of the liquid crystal molecules, t ₃ 'represents 121 to 123 corresponding to the emission time of each light source such color sub-picture. That is, during each display screen, the source driver 13 updates the display material of each color sub-picture in each area during t ₁ , and waits for the liquid crystal reaction to complete after t ₂ , and the light sources 121 to 123 It is illuminated at time t ₃ ' .

In summary, in the field sequential liquid crystal display 1 of the present invention, the first region 101 to the third region 103 respectively display a partial screen of a display screen during different periods; wherein the display period of the second region 102 is slightly later In the first region 101, the display period of the third region 103 is slightly later than the second region 102, but the invention is not limited thereto, for example, the order of the display period may be reversed. When the display panel 10 displays a display screen, the source driver 13 sequentially provides display data of different color sub-pictures to each area, and the gate drivers 111-113 sequentially turn on the columns of pixels, and the light sources 121~ 123 respectively provides a backlight of a corresponding color, such as a three-color backlight such as RGB or CYM, during the different color sub-pictures according to the display data provided to each area. According to the characteristics of the optically compensated curved (OCB) liquid crystal, inserting a black data (black) after a color sub-picture can increase the display brightness. For example, the 5a picture shows the black data inserted after the red sub-picture. When the display panel 10 displays the display material of the red sub-picture, the red light component of the second area 102 and the third area 103 may be higher and the display picture color is uneven, especially when the display picture is a white picture or The monochrome (red) picture is most noticeable. It can be understood that the black data in the present invention may also be inserted between other color sub-pictures.

Therefore, in this embodiment, the display time of the black data is postponed, and when the red sub-picture of the third area 103 is completely displayed, the black data is simultaneously inserted, as shown in FIG. 5a. Thereby, in the first region 101 and the second region 102, when the display period of the red sub-picture ends, the liquid crystal molecules in the regions are not immediately biased back to the opaque state, so the whole In the red sub-picture, the red light between the first area 101 to the third area 103 penetrates into other areas, so that the brightness of the red sub-picture can be more uniform.

Referring to FIG. 5a and FIG. 6a simultaneously, FIG. 6a is a flow chart showing a driving method of the field sequential liquid crystal display device according to the first embodiment of the present invention, which includes the following steps: sequentially providing a first color during a first period. the display data and black data to a first area to a display (step S _11); and at night sequentially providing the first color information displayed in the third period of the first period and one of the black data to a first simultaneously provided to the first region and the third region (step S ₁₃₎ and causing the black data after the completion of the display of the first color data to the third region; three regions (step S _12). Furthermore, the driving method of the field sequential liquid crystal display according to the first embodiment of the present invention further includes the step of sequentially providing the first color later than the first period and before the second period of the third period Displaying the data and the black data to a second area for display; and displaying the display material of the second color and the third color to the first area after the black data in the first period to the third period To the third area to display. In this embodiment, the first period to the third period is a display time of one display area in a display screen.

Please refer to FIG. 5b, which shows a schematic diagram of a driving method of the field sequential liquid crystal display according to the second embodiment of the present invention. The purpose of this embodiment is to eliminate the problem of uneven brightness of the picture of the color sub-picture after the difference black data.

In this embodiment, the liquid crystal reaction time (ie, t ₂ ) of the color sub-picture after extending the black data is used to eliminate the problem of uneven display. For example, in this embodiment, the display time of the second area 102 is later than the first area 101; the display time of the third area 103 is later than the second area 102. In order to avoid the situation that the liquid crystal molecules in the second region 102 and the third region 103 have not completed the transition when the light source 121 in the first region 101 is lit, the liquid crystal reaction time of the green sub-picture is extended from t _{2 .} Is t ₂ ' , where t ₂ ' > t ₂ ; that is, the light source 121 in the first region 101 is to be turned on when the liquid crystal reaction of the third region 103 reaches a steady state, so during the entire green sub-picture, The green light between the first region 101 to the third region 103 can uniformly penetrate to other regions, so that the brightness of the green sub-picture can be more uniform. The determination method for reaching the steady state described herein can be defined according to the difference in brightness of different regions in a display screen; for example, according to the panel specification, the ratio of the lowest brightness to the highest brightness in a display screen is generally not less than 70%. Thus, in this embodiment, when the first light source 121 does not reach a steady state region 101 of the liquid crystal material of the third region 103 of the lighting, brightness (e.g., B ₃₎ of the third region 103 and the darkest The brightness (e.g., B ₁ ) of the first region 101 is the brightest. Therefore, the liquid crystal reaction time t ₂ ′ of the first region 101 needs to be adjusted to at least enable the brightness ratio of the brightness of the third region 103 to the first region 101 to be greater than 70%, that is, B ₃ /B ₁ >70%. . In addition, the minimum value of the liquid crystal reaction time t ₂ ' can be determined by the maximum gray scale value of the color sub-picture after the black data. For example, in a white screen or a monochrome screen (for example, a red, green or blue screen), the color sub-picture after the black data is the maximum gray scale value of a pixel range (for example, 256 gray scale), and the green color is The minimum value of the liquid crystal reaction time t ₂ ' in the sub-picture.

Referring to FIG. 5b and FIG. 6b simultaneously, FIG. 6b shows a driving method of the field sequential liquid crystal display according to the second embodiment of the present invention, which includes the following steps: sequentially providing a display material of a first color in a first period. , a black color data and displays the data to a second region of a first (step S _21); providing display data sequentially in the late first color of the first one during the third period, and the black data the data show the second color to a third region (step S _22); and that the first period and the third period is included in the display data with respect to the second one of the second color comprises a liquid crystal response time is longer than the one opposing the first color data of a first liquid crystal display response time (step S _23). Furthermore, the driving method of the field sequential liquid crystal display according to the second embodiment of the present invention further includes the step of sequentially providing the first color later than the first period and before the second period of the third period Displaying the data, the black data and the display material of the second color to a second area; and providing a display material of the third color after the display data of the second color in the first period to the third period To the first area to the third area. In this embodiment, the first period to the third period is a display time of each display area in a display screen.

Referring to FIG. 5c, there is shown a schematic diagram of a field sequential liquid crystal display according to a third embodiment of the present invention. The purpose of this embodiment is to eliminate the problem of uneven brightness of the picture of the color sub-picture after the difference black data. Since the human eye is less sensitive to blue light, if the blue sub-picture is interchanged with the green sub-picture, the degree of perception of the brightness unevenness of the display screen can be reduced by the human eye. Therefore, in this embodiment, the dark sub-picture, for example, the blue or magenta sub-picture is designed to be adjacent to the black material to reduce the problem of uneven brightness of the picture.

Referring to FIG. 5c and FIG. 6c simultaneously, FIG. 6c shows a driving method of the field sequential liquid crystal display according to the third embodiment of the present invention, which comprises the following steps: sequentially providing a black data and a dark color display in a first period. data to a first region (step S _31); the late sequentially providing the black information during one of the first to the third period and the dark display data to a third region (step S _32). Furthermore, the driving method of the field sequential liquid crystal display according to the third embodiment of the present invention further includes the step of sequentially providing the black data later than the first period and before the second period of the third period. And displaying the data in a dark area to a second area; and in the first period to the third period, respectively providing a non-dark color display material to the first area to the third area before and after the black data. In this embodiment, the first period to the third period is a display time of each display area in a display screen. In the present invention, since the human eye is least sensitive to blue and magenta, the two colors are referred to herein as dark colors, and other colors (for example, red, green, cyan, and yellow) are non-dark colors.

Referring to FIG. 5d, there is shown a schematic diagram of a driving method of a field sequential liquid crystal display according to a fourth embodiment of the present invention, which is a general embodiment of the first to third embodiments. In this embodiment, two or all of the first embodiment to the third embodiment are simultaneously implemented, that is, the display time of the black data is delayed; when the red sub-picture of the third area is completely finished, the black data is simultaneously inserted. In all display areas; the liquid crystal reaction time of the color sub-picture after adding the black data; and the dark sub-picture adjacent to the black data. In this way, the problem of unevenness of the picture caused by the black data can be more effectively eliminated. As described above, since the human eye has a low degree of perception of the dark sub-picture, when the second embodiment and the third embodiment are simultaneously implemented, the liquid crystal reaction time t ₂ ' with respect to the second embodiment, the dark picture The liquid crystal reaction time t ₂ " can be less than t ₂ ' . In general, when the display screen displays a white screen, the red, green and blue light flux ratio is about 0.35:0.56:0.09 (which is different according to the wavelength of light used in RGB) slightly different), the blue light based normalization was 3.89: 6.22: 1 Thus, when the liquid crystal response time blue sub picture information is adjacent to the rear of the black t ₂ "may be reduced to green The sub-picture is adjacent to the black data after 1/6.22 of the liquid crystal reaction time t ₂ ' , that is, t ₂ " = (1/6.22) × t ₂ ' , so as to avoid shortening the light-emitting time of the light source. Similarly, use cyan yellow Magenta is the basic color of the color mixture and is normalized on the basis of magenta light. The ratio of the luminous flux of cyan yellow magenta is 1.477: 2.682:1 (which is also slightly different depending on the wavelength of light used by CYM). Difference), if the magenta sub-picture is adjacent to the black data, it can be reached. To the same effect.

Referring to FIG. 5d and FIG. 6d simultaneously, FIG. 6d shows a driving method of the field sequential liquid crystal display according to the fourth embodiment of the present invention, which includes the following steps: sequentially providing a display material of a first color in a first period. Displaying, by a black data and a dark color, a data to a first area for display (step _S41 ); sequentially providing the display material of the first color, the black data, and the third time period after the third period of the first period Darkly displaying the data to a third area for display (step _S42 ); and causing the black data to be displayed to the first area and the third area after displaying the display material of the first color in the third area (step S _43); and the third period and the first period included in one of the display data with respect to the first color of the first liquid crystal response time (one step relative to the dark display of the liquid crystal response time is longer than the second data contained S ₄₄ ). In addition, the driving method of the field sequential liquid crystal display according to the fourth embodiment of the present invention further includes the step of sequentially providing the display of the first color later than the first period and before the second period of the third period. The data, the black data and the dark color display data are displayed to a second area; and the first period to the third period, after the dark material is provided, a third color display material is provided to the first area to the The third area is displayed. In this embodiment, the first period to the third period is a display time of each display area in a display screen.

As described above, the color of the displayed picture is not uniform due to uneven light leakage between different control areas of the conventional field sequential liquid crystal display. The invention provides a field sequential liquid crystal display and a driving method thereof (Figs. 5a to 5d and 6a to 6d), by changing the enabling time of black data in different control regions and the color and liquid crystal of the color sub-picture after black data. Reaction time to solve the problem of uneven color of the display. In addition, since the problem of uneven color of the display screen can be eliminated according to the driving method of the embodiments of the present invention, the backlight module of the partition is not required, and the cost can be reduced and the structure can be simplified.

The present invention has been disclosed in the foregoing embodiments, and is not intended to limit the present invention. Any of the ordinary skill in the art to which the invention pertains can be modified and modified without departing from the spirit and scope of the invention. . Therefore, the scope of the invention is defined by the scope of the appended claims.

1. . . Field sequential liquid crystal display

10. . . Display panel

101. . . First area

102. . . Second area

103. . . Third area

111~113. . . Gate driver

121~122. . . light source

13. . . Source driver

t ₁ . . . Data write time

_{t 2, t 2 ', t} 2 "... liquid crystal response time

t ₃ , t ₃ ' . . . Light source illumination time

T ₁ , T ₂ , T ₃ . . . Area display period

S ₁₁ ~S ₄₄ . . . step

Figure 1 shows a schematic diagram of the color sequential color display technique.

FIG. 2 is a schematic diagram showing a display screen divided into a plurality of sub-pictures in the color sequential color display technology.

Figure 3a shows a schematic diagram of the area control display panel.

Figure 3b shows the operational timing diagram of the display panel of Figure 3a.

Figure 3c shows another operational timing diagram of the display panel of Figure 3a, which includes a black insertion data.

Fig. 4 is a view showing a field sequential liquid crystal display according to an embodiment of the present invention.

Fig. 5a is a view showing a driving method of the field sequential liquid crystal display of the first embodiment of the present invention.

Fig. 5b is a view showing a driving method of the field sequential liquid crystal display of the second embodiment of the present invention.

Fig. 5c is a view showing a driving method of the field sequential liquid crystal display of the third embodiment of the present invention.

Fig. 5d is a view showing a driving method of the field sequential liquid crystal display of the fourth embodiment of the present invention.

Fig. 6a is a flow chart showing a driving method of the field sequential liquid crystal display of the first embodiment of the present invention.

Fig. 6b is a flow chart showing a driving method of the field sequential liquid crystal display of the second embodiment of the present invention.

Fig. 6c is a flow chart showing a driving method of the field sequential liquid crystal display of the third embodiment of the present invention.

Fig. 6d is a flow chart showing a driving method of the field sequential liquid crystal display of the fourth embodiment of the present invention.

t ₁ . . . Data write time

t ₂ , t ₂ " ...liquid crystal reaction time

t ₃ ' . . . Light source illumination time

Claims (15)

A driving method of a field sequential liquid crystal display, the field sequential liquid crystal display comprising a plurality of display areas, the driving method comprising the steps of: sequentially providing a display material of a first color, a black data, and a first Displaying data of the two colors to a first area; sequentially displaying the display material of the first color, the black data, and the display material of the second color to a third area later than a third period of the first period And causing the second liquid crystal reaction time of one of the display materials of the second color included in the first period and the third period to be longer than the first liquid crystal reaction time of the display material included in the first color. According to the driving method of the field sequential liquid crystal display of claim 1, wherein the second liquid crystal reaction time when the second color is dark is shorter than the second liquid crystal reaction when the second color is non-dark color time. A driving method of a field sequential liquid crystal display according to claim 2, wherein the dark color is blue or magenta. According to the driving method of the field sequential liquid crystal display of claim 2, wherein the second liquid crystal reaction time when the second color is dark is the second liquid crystal reaction time when the second color is non-dark color 1/6.22. According to the driving method of the field sequential liquid crystal display of claim 1, the method further comprises the steps of: sequentially providing the first color display later than the first period and before the second period of the third period Displaying the data, the black data, and the display material of the second color to a second area; wherein the second period includes the first liquid crystal reaction time relative to the display material of the first color and relative to the second color The second liquid crystal reaction time of the displayed data. A driving method of a field sequential liquid crystal display, the field sequential liquid crystal display comprising a plurality of display areas, the driving method comprising the steps of: sequentially providing a display material of a first color, a black material and a dark color in a first period Displaying the data to a first area for display; sequentially displaying the display material of the first color, the black data, and the dark color display data to a third area for display after a third period of the first period; The black data is simultaneously provided to the first area and the third area after displaying the display material of the first color in the third area; and the dark color display data included in the first period and the third period is included One of the second liquid crystal reaction times is longer than the first liquid crystal reaction time included in the display material relative to the first color. According to the driving method of the field sequential liquid crystal display of claim 6, wherein the dark color is blue or magenta, and the black data is zero gray scale data. According to the driving method of the field sequential liquid crystal display of claim 6, the method further comprises the steps of: sequentially providing the display of the first color later than the first period and before the second period of the third period The data, the black data, and the dark color display data are displayed to a second area; wherein the black data displays the first area in the third area The display data of one color is simultaneously provided to the first area to the third area; the second period includes a first liquid crystal reaction time relative to the display material of the first color and the first display data relative to the dark color Two liquid crystal reaction time. According to the driving method of the field sequential liquid crystal display of claim 6, the method further includes the following steps: providing a first backlight corresponding to the first color display material and the dark color display data in the first area; The third area provides a third backlight corresponding to the display material of the first color and the dark display material. According to the driving method of the field sequential liquid crystal display of claim 6, the method further includes the following steps: in the first period and the third period, providing a third color display material to the first after the dark data The area and the third area are displayed, wherein the first color and the third color are non-dark colors. A field sequential liquid crystal display, comprising: a display panel, comprising: a plurality of display areas for displaying a part of the display screen during different periods of a display screen; and a source driver for different periods of the display screen And sequentially inputting a display material of a first color, a black data, and a display material of a second color to each display area; wherein the source driver displays the display material of the first color in the last one of the display areas After that, the black data is provided to all display areas at the same time; The different periods of the display screen respectively include a first liquid crystal reaction time relative to one of the display materials of the first color and a second liquid crystal reaction time relative to the display data of the second color, and the second liquid crystal reaction time Longer than the first liquid crystal reaction time. The field sequential liquid crystal display according to claim 11 of the patent application, further comprising a plurality of light sources, respectively providing a corresponding backlight to each display area according to the display material of the first color, the black data and the display data of the second color . The field sequential liquid crystal display according to claim 11, wherein the second liquid crystal reaction time when the second color is dark is shorter than the second liquid crystal reaction time when the second color is non-dark color. The field sequential liquid crystal display according to claim 11, wherein the second liquid crystal reaction time when the second color is dark is 1/6.22 of the second liquid crystal reaction time when the second color is non-dark. A field sequential liquid crystal display according to claim 13 or 14, wherein the dark color is blue or magenta.