TW201743307A - Display device and method for driving a display device - Google Patents

Abstract

A display device includes a plurality of rows of display units and a driving circuit. Each display unit includes a first pixel set and a second pixel set. The first pixel set includes a plurality of first color pixels, a plurality of second color pixels, and at least one fourth color pixel. In the first pixel set, the number of first color pixels is greater than the number of second color pixels, and the number of second color pixels is greater than the number of fourth color pixels. The second pixel set is disposed adjacent to the first pixel set. The second pixel set includes a plurality of second color pixels, a plurality of third color pixels, and at least one fourth color pixel. In the second pixel set, the number of third color pixels is greater than the number of second color pixels, and the number of second color pixels is greater than or equal to the number of fourth color pixels.

Description

Display device and method of driving display device

The present invention relates to a display device, and more particularly to a display device capable of saving power consumption.

As the functions of electronic products are increasing and the volume is getting smaller and smaller, the application fields of electronic products are also increasing, so the display devices on electronic products often need to adapt to different use environments. For example, a display device applied to a smart watch or a mobile phone may operate in an outdoor glare environment due to the user's movement. In this case, the display device on the smart watch or the mobile phone may need to generate a strong brightness to ensure that the user can clearly see the content of the display under strong light.

Figure 1 is a schematic illustration of a prior art display device 10. The display device 10 includes a plurality of display units 100, and each display unit 100 includes three red sub-pixels 100R, three green sub-pixels 100G, and three blue sub-pixels 100B. In an environment with strong light, in addition to driving the sub-pixels required to display the corresponding colors, the display unit 100 may additionally need to additionally drive other color sub-pixels to enhance the overall brightness. Since the display unit 100 must simultaneously drive the three-color sub-pixels to generate white light to increase the brightness, it is often required to consume a large amount of electric energy. In order to save power, the prior art also adds a white sub-pixel corresponding to the number of other color pixels in the display unit 100. However, since the number of each of the dice pixels in the display unit 100 is equivalent, the problem of whitening the picture, excessive power consumption, and inflexibility of the color combination is often caused in actual operation. In view of this, how to make the display device can be applied to different use environments, while also avoiding whitening of the screen and saving power consumption, has become a problem to be solved.

An embodiment of the present invention provides a display device including a plurality of columns of a first display unit and a driving circuit. Each column of the first display unit includes a plurality of first display units, and each of the first display units includes a first pixel group and a second pixel group. The drive circuit drives the plurality of columns of the first display unit.

Each of the first pixel groups includes a plurality of first color pixels, a plurality of second color pixels, and at least a fourth color pixel arranged in a manner of (2 ^m -1) x 3, wherein m is greater than 1. A positive integer. The number of first color pixels of the first pixel group is greater than the number of second color pixels of the first pixel group, and the number of second color pixels of the first pixel group is greater than that of the first pixel group The number of four-color pixels. The second pixel group is arranged adjacent to the first pixel group, and each of the second pixel groups includes a plurality of second color pixels arranged in a manner of (2 ^m -1) x 3, and a plurality of third color paintings Prime (blue) and at least a fourth color pixel. The number of third color pixels of the second pixel group is greater than the number of second color pixels of the second pixel group, and the number of second color pixels of the second pixel group is greater than or equal to the second pixel group The number of fourth color pixels.

In each of the first display units, the number of first color pixels of the first pixel group is the same as the number of third color pixels of the second pixel group. In each of the first display units, at least one fourth color pixel of the first pixel group is not adjacent to at least one fourth color pixel of the second pixel group. In each of the first display units, at least one fourth color pixel of the first pixel group is in the middle column of the first pixel group and at least one fourth color pixel system of the second pixel group is in the second The middle column of the pixel group.

Another embodiment of the present invention provides a method of driving a display device, the display device including a plurality of columns of first display units, each column of the first display unit including a plurality of first display units, and each of the first display units including the first picture Prime group and second pixel group. Each of the first pixel groups includes a plurality of first color pixels, a plurality of second color pixels, and at least a fourth color pixel arranged in a manner of (2 ^m -1) x 3, wherein m is greater than 1. A positive integer. The number of first color pixels of the first pixel group is greater than the number of second color pixels of the first pixel group, and the number of second color pixels of the first pixel group is greater than that of the first pixel group. The number of a fourth color pixel. The second pixel group is arranged adjacent to the first pixel group, and each of the second pixel groups includes a plurality of second color pixels arranged in a manner of (2 ^m -1) x 3, and a plurality of third color paintings And at least a fourth color pixel. The number of third color pixels of the second pixel group is greater than the number of second color pixels of the second pixel group, and the number of second color pixels of the second pixel group is greater than or equal to the second pixel group The number of at least one fourth color pixel.

The method comprises: converting a three-color brightness data set corresponding to the first display unit into a four-color brightness data set corresponding to the first display unit, and driving the first pixel set according to the first color brightness value of the four-color brightness data set a color pixel, according to the second color brightness value of the four color brightness data group, driving the second color pixel of the first pixel group and the second color pixel of the second pixel group, according to the fourth color brightness data group The tri-color luminance value drives the third color pixel of the second pixel group, and drives the at least one fourth color pixel and the second pixel group of the first pixel group according to the fourth color luminance value of the four-color luminance data set. At least one fourth color pixel.

In each of the first display units, the number of first color pixels of the first pixel group is the same as the number of third color pixels of the second pixel group. In each of the first display units, at least one fourth color pixel of the first pixel group is not adjacent to at least one fourth color pixel of the second pixel group. In each of the first display units, at least one fourth color pixel of the first pixel group is in the middle column of the first pixel group and at least one fourth color pixel system of the second pixel group is in the second The middle column of the pixel group.

FIG. 2 is a schematic diagram of a display device 20 according to an embodiment of the present invention. The display device 20 includes a plurality of columns of the first display unit 210 and the drive circuit 230. Each column of the first display unit includes a plurality of first display units 210. Each first display unit 210 includes a first pixel group 212 and a second pixel group 214.

The first pixel group 212 includes a plurality of first color pixels A, a plurality of second color pixels B, and at least a fourth color pixel D, which are arranged in a manner of (2 ^m -1) x 3 , m is greater than A positive integer of 1. In the embodiment of Fig. 2, m is 2, and the first color pixel A, the second color pixel B, and the fourth color pixel D in the first pixel group 212 are arranged in a 3x3 manner. The second pixel group 214 is arranged adjacent to the first pixel group 212, and each of the second pixel groups 214 includes a plurality of second color pixels B and a plurality of third color pixels arranged in a 3 x 3 manner. C and at least a fourth color pixel D. That is, the first pixel group 212 and the second pixel group 214 have similar structures but sub-pixels of different colors. In the embodiment of FIG. 2, the first color pixel A of the first pixel group 212 may be a red pixel, a second color pixel B of the first pixel group 212, and a second pixel group 214. The dichromatic pixel B may be a green pixel, the fourth color pixel D of the first pixel group 212 and the fourth color pixel D of the second pixel group 214 may be white pixels, and the second pixel group The third color chromin C of 214 may be a blue pixel. However, the present invention is not limited thereto. In other embodiments of the present invention, the first color pixel A of the first pixel group 212 may also be a blue pixel, and the second color of the first pixel group 212. The second color pixel B of the pixel B and the second pixel group 214 may be a green pixel, the fourth color pixel D of the first pixel group 212 and the fourth color pixel D of the second pixel group 214 It may be a white pixel, and the third color pixel C of the second pixel group 214 may be a red pixel.

Further, in the first pixel group 212, the number of first color pixels A may be greater than the number of second color pixels B, and the number of second color pixels B may be greater than the number of fourth color pixels D. In the second pixel group 214, the number of third color pixels C may be greater than the number of second color pixels B, and the number of second color pixels B may be greater than or equal to the number of fourth color pixels D. Moreover, in each of the first display units 210, the number of first color pixels A of the first pixel group 212 is the same as the number of third color pixels C of the second pixel group 214. For example, in FIG. 2, the first pixel group 212 may include five first color pixels A, three second color pixels B, and one fourth color pixel C, and the second pixel group 214 can include five third color pixels A, two second color pixels B, and two fourth color pixels C.

Furthermore, in order to enable the display device 20 to make the combination of colors more uniform and maintain a better visual effect, in each of the first display units 210, the fourth pixel group 212 can be fourth. The fourth color pixel D of the color pixel D and the second pixel group 214 are arranged not to be adjacent to each other, and even the fourth color pixel D of the first pixel group 212 may be set to the first pixel group 212. The middle column and the fourth color pixel D of the second pixel group 214 are disposed in the middle column of the second pixel group 214. In the embodiment of FIG. 2, the fourth color pixel D of the first pixel group 212 can be disposed at the center position of the first pixel group 212, and the second color pixels of the second pixel group 214. D is not adjacent to each other.

Since the number of white pixels, that is, the fourth color pixel D, is smaller in the first display unit 210 than in other colors, the saturation of the color can be maintained while effectively improving the brightness of the overall display image. And avoid the situation of whitewashing the picture. In addition, since the first display unit 210 can be mixed by the first pixel group 212 and the second pixel group 214, the number of each color pixel is much larger than that of the display unit 100 of the prior art. The first display unit 210 is capable of combining a greater number of distinct colors than the display unit 100 of the prior art. Furthermore, in the first display unit 210, since the fourth color pixel D can be intermittently distributed between other pixels, and can be located in the middle column of the first pixel group 212 and the second pixel group 214, the display is performed. When the device 20 presents a picture through the first pixel group 212 and the second pixel group 214 of the first display unit 210, the color mixing effect between different color pixels can be more uniform, thereby improving the quality of the picture presentation.

The drive circuit 230 can drive the plurality of columns of the first display unit 210 of the display device 20. In some embodiments of the present invention, the driving circuit 230 may output a first control signal SIG1 of 3×m bits to drive the first pixel group 212, and output 3×m bits of the second control signal SIG2 to drive the second. Picture group 214. FIG. 3 is a schematic diagram of signal connection between the driving circuit 230 and the first display unit 210 according to an embodiment of the invention. In FIG. 3, the driving circuit 230 can issue a 6-bit first control signal SIG1 and can issue a 6-bit second control signal SIG2. For example, the first color pixel A is a red pixel, the second color pixel B is a green pixel, the third color pixel C is a blue pixel, and the fourth color pixel D is a white pixel. The control signal SIG1 may include four-bit red control signals SIG _R0 , SIG _R1 , SIG _{R2 ,} and SIG _R3 , and two-digit green control signals SIG _G0 and SIG _G1 ; and the second control signal SIG2 may include four bits Blue control signals SIG _B0 , SIG _B1 , SIG _B2 and SIG _B3 , and two-digit green control signals SIG _G0 and SIG _G1 .

The red control signals SIG _R1 , SIG _{R2 ,} and SIG _{R3 of the} first control signal SIG1 can be respectively output to the first color pixels A of the first pixel group 212, and the red control signal SIG _{R0 of the} first control signal SIG1 can be The fourth color pixel D is output to the first pixel group 212, and the green control signals SIG _G0 and SIG _{G1 of the} first control signal SIG1 are respectively output to the three second color pixels B of the first pixel group 212. . The blue control signals SIG _B0 , SIG _{B1 ,} and SIG _{B3 of the} second control signal SIG2 can be respectively output to the fifth third color pixel C of the second pixel group 214, and the blue control signal SIG _{B2 of the} second control signal SIG2. The fourth color pixel D can be output to the second pixel group 214, and the green control signal SIG _{G0 of the} second control signal SIG2 can be output to one of the fourth color pixels D of the second pixel group 214. The green control signal SIG _{G1 of the} second control signal SIG2 can be output to the two second color pixels B of the second pixel group 214.

That is to say, the driving circuit 230 can control the white pixels in the first pixel group 212 and the second pixel group 214 by using a part of the red control signal, the green control signal and the blue control signal, so that compared to the previous The driving circuit 230 can drive the first pixel group 212 and the second pixel group 214 by using a red control signal, a green control signal, and a blue control signal without additionally calculating a white pixel control signal. White pixels. Of course, the present invention is not limited to the signal connection method shown in FIG. In other embodiments of the present invention, the driving circuit 230 may also recalculate the control signals of the white pixels, or may connect the color control signals to corresponding pixels of different positions.

In addition, in some embodiments of the present invention, in the display device, red pixels and blue pixels in the display units of two adjacent columns may be staggered to make the color mixture of the display unit more uniform. FIG. 4 is a schematic diagram of a display device 30 according to an embodiment of the present invention. The display device 30 is similar in structure to the display device 20, and the operation principle is the same. However, the display device 30 includes a plurality of columns of the second display unit 320 in addition to the plurality of columns of the first display unit 210 and the drive circuit 230. In the embodiment of FIG. 4, the plurality of columns of the first display unit 210 and the plurality of columns of the second display unit 320 are staggered.

Each column of the second display unit 320 includes a plurality of second display units 320, and each of the second display units 320 includes a third pixel group 322 and a fourth pixel group 324. The third pixel group 322 will be adjacent to the first pixel group 212 of the first display unit 210. The third pixel group 322 may include five third color pixels C, two second color pixels B, and two fourth color pixels D. The fourth pixel group 324 will be adjacent to the second pixel group 214 of the first display unit 210. The fourth pixel group 324 may include five first color pixels A, three second color pixels B, and one fourth color pixel D. In addition, the fourth color pixels of the third pixel group 322 and the fourth pixel group 324 are also disposed in the middle column of the third pixel group 322 and the fourth pixel group 324, and the fourth pixel group 324 The fourth color pixel D may be located at a central position of the fourth pixel group 324, and the two fourth color pixels D of the third pixel group 322 are not adjacent to each other.

In this way, the second display unit 320 can be mixed by the third pixel group 322 and the fourth pixel group 324. Therefore, the second display unit 320 can combine a larger number of the display units 100 than the prior art display unit 100. Different colors. Moreover, since the first display unit 210 and the second display unit 320 in the display device 30 are staggered, the display device 30 displays the different color pixels when the first display unit 210 and the second display unit 320 are presented through the screen. The color mixing effect between the two can be more uniform and further enhance the quality of the picture.

In the above embodiment, the first display unit 210 and the second display unit 320 each include three fourth color pixels. However, the present invention is not limited thereto. In other embodiments of the present invention, The number of the first color pixels A and the number of the third color pixels C in the first display unit 210 and the second display unit 320 are both greater than the number of the second color pixels B, and the first display unit 210 and the second The number of the second color pixels B in the display unit 320 is greater than the number of the fourth color pixels D, that is, the number of white pixels (ie, the fourth color pixels) can be prevented from being imbalanced with the number of other color pixels. The problem of washing the picture.

FIG. 5 is a schematic diagram of a display device 40 according to an embodiment of the present invention. The display device 40 includes a first display unit 410 and a driving circuit 230. The first display unit 410 includes a first pixel group 412 and a second pixel group 422. The structure of the display device 40 is similar to that of the display device 20, and the operation principle is similar. The difference between the two is that the second pixel group 414 of the first display unit 410 of the display device 40 includes three second color pixels B and one The four-color pixel D, and the second pixel group 214 of the first display unit 210 of the display device 20 includes two second color pixels B and two fourth color pixels D.

Since the number of white pixels, that is, the fourth color pixel D, is smaller in the first display unit 410 than in other colors, the display device 40 can be maintained while effectively improving the brightness of the overall display image. The saturation of the color, while avoiding the whitening of the picture. In addition, since the first display unit 410 can be mixed by the first pixel group 412 and the second pixel group 414, the number of each color pixel is much larger than that of the display unit 100 of the prior art. The first display unit 410 is capable of combining a greater number of distinct colors than the display unit 100 of the prior art.

FIG. 6 is a schematic diagram of a display device 50 according to an embodiment of the present invention. The display device 50 is similar in structure to the display device 40, and the operation principle is the same. However, the display device 50 includes a plurality of columns of the second display unit 520 in addition to the plurality of columns of the first display unit 410 and the driving circuit 230. In the embodiment of FIG. 6, the plurality of columns of the first display unit 410 and the plurality of columns of the second display unit 520 are staggered.

Each column of the second display unit 520 includes a plurality of second display units 520, and each of the second display units 520 includes a third pixel group 522 and a fourth pixel group 524. The third pixel group 522 is adjacent to the first pixel group 412, and the third pixel group 522 includes five third color pixels C, three second color pixels B, and one fourth color pixel D. The fourth pixel group 524 is adjacent to the second pixel group 414, and the fourth pixel group 524 includes five first color pixels A, three second color pixels B, and one fourth color pixel D.

Since the first display unit 410 and the second display unit 520 in the display device 50 are staggered, the display device 50 mixes colors between different color pixels when the first display unit 410 and the second display unit 520 are presented through the screen. The effect is more uniform and further enhances the quality of the picture.

Figure 7 is a schematic illustration of a display device 60 in accordance with one embodiment of the present invention. The display device 60 is similar in structure to the display device 40, and the operation principle is the same. However, the display device 60 includes a plurality of columns of the second display unit 620 in addition to the plurality of columns of the first display unit 410 and the drive circuit 230. In the embodiment of FIG. 7, the plurality of columns of the first display unit 410 and the plurality of columns of the second display unit 620 are staggered.

Each column of the second display unit 620 includes a plurality of second display units 620, and each of the second display units 620 includes a third pixel group 622 and a fourth pixel group 624. The third pixel group 622 is adjacent to the first pixel group 412, and the third pixel group 622 includes five first color pixels A, three second color pixels B, and one fourth color pixel D. The position of the fourth color pixel D of the third pixel group 622 is different from the position of the fourth color pixel D of the first pixel group 412. The fourth pixel group 624 is adjacent to the second pixel group 414, and the fourth pixel group 624 includes five third color pixels C, three second color pixels B, and one fourth color pixel D. The position of the fourth color pixel D of the fourth pixel group 624 is different from the position of the fourth color pixel D of the second pixel group 414.

Since the first display unit 410 and the second display unit 520 in the display device 50 are staggered, the display device 50 mixes colors between different color pixels when the first display unit 410 and the second display unit 520 are presented through the screen. The effect is more uniform and further enhances the quality of the picture.

In addition to the pixel arrangement described in the above embodiments, the user can also arrange different color pixels according to the concept of symmetry. For example, the third pixel group 622 of the display device 60 can also be used. The first color pixel A is changed to the third pixel C, and the third color pixel C of the fourth pixel group 624 is changed to the first pixel A. Even the user can change the position of the second color pixel in the first pixel group 412 and the second pixel group 414 in the display device 40. That is, as long as the number of the first color pixels A and the number of the third color pixels C of each display unit in the display device are greater than the number of the second color pixels B, and the second color pixels of each display unit The number of B is greater than the number of fourth color pixels D, that is, the problem of whitewashing caused by the imbalance between the number of white pixels and the number of other color pixels can be avoided. By placing the pixels in each display unit by the concept of symmetry, the color mixing effect of the display device can be further maintained.

FIG. 8 is a flow chart of a method 700 of driving a display device according to an embodiment of the invention. Method 700 can be applied to drive display devices 20, 30, 40, 50, and 60. Method 700 can include steps S710 through S750.

S710: Convert a three-color brightness data set corresponding to the first display unit 210 (or 410) into a four-color brightness data set corresponding to the first display unit 210 (or 410);

S720: driving a plurality of first color pixels A of the first pixel group 212 (or 412) according to the first color brightness value of the four color brightness data set;

S730: driving a plurality of second color pixels B of the first pixel group 212 (or 412) and a plurality of second pixels of the second pixel group 214 (or 414) according to the second color brightness value of the four color brightness data set. Color pixel B;

S740: driving a plurality of third color pixels C of the second pixel group 214 (or 414) according to the third color brightness value of the four color brightness data set;

S750: Driving at least one fourth color pixel D of the first pixel group 212 (or 412) and at least one fourth of the second pixel group 214 (or 414) according to the fourth color brightness value of the four color brightness data set. Color pixels.

In step S710, the three-color luminance data set used to drive the red, green, and blue pixels of the prior art may be converted into a four-color luminance data set to drive the first display unit 212 (or 412) and the second display, respectively. Red pixels, green pixels, blue pixels, and white pixels in unit 214 (or 414). In some embodiments of the present invention, step S710 can directly control the white pixels by using a part of the bit data in the three-color luminance data set through the signal wiring mode as shown in FIG. 3, but in some embodiments of the present invention, In step S710, the three-color luminance data set can be converted into a four-color luminance data set by other means.

Figure 9 is a flow chart of step S710 of an embodiment of the present invention. Step S710 may include sub-steps S712 to S716, but is not limited to the order shown in FIG.

S712: Calculating a saturation of a three-color luminance data set corresponding to the first display unit 212 (or 412);

S714: Set a fourth color brightness value in the four color brightness data set corresponding to the first display unit 212 (or 412) to a maximum value of the fourth color brightness value;

S716: Calculate the first color brightness value, the second color brightness value, and the third color brightness value in the four color brightness data set according to the three color brightness data set to make the saturation of the four color brightness data set equal to the three color brightness data set. saturation.

In other words, when the three-color luminance data set is converted into the four-color luminance data set, the fourth color luminance value corresponding to the white pixel in the four-color luminance data set may be first set to the fourth color luminance in sub-step S714. The maximum value is used to increase the brightness of the display picture, and the saturation of the original three-color brightness data set is calculated in sub-step S712. The calculation of the saturation can be obtained by a generally known definition calculation. For example, the saturation S can be calculated according to Equation 1:

S = 1- ( Min(B _A , B _B , B _C ) / Max(B _A , B _B , B _C ) )

In Formula 1, B _A represents a first color luminance value (for example, a red luminance value) in a three-color luminance data set, and B _B represents a second color luminance value (for example, a green luminance value) in the three-color luminance data set. And B _C represents a third color luminance value (for example, a blue luminance value) in the three-color luminance data set. Min(B _A , B _B , B _C ) represents the minimum value of the first color brightness value B _A , the second color brightness value B _B and the third color brightness value B _C , Max (B _A , B _B , B _C ) represents the maximum value of the first color luminance value B _A , the second color luminance value B _{B ,} and the third color luminance value B _C .

Next, in sub-step S716, according to the proportional relationship of the luminance values of the colors in the three-color luminance data group, the first color luminance value, the second color luminance value, and the third color luminance value in the four-color luminance data group can be calculated, and The saturation of the four-color luminance data set is equal to the saturation of the three-color luminance data set.

Since the number of white pixels in the display devices 20, 30, 40, 50, and 60 is smaller than the number of other color pixels, the display device can be improved not only when the fourth color luminance value is set to the maximum value. The overall brightness, while maintaining the color saturation of the original picture, reduces the problem of picture whitening caused by prior art display devices.

After obtaining the first color brightness value, the second color brightness value, the third color brightness value, and the fourth brightness value of the four color brightness data set, steps S720 to S750 may respectively be based on the first color brightness of the four color brightness data set. The value, the second color brightness value, the third color brightness value, and the fourth brightness value drive the corresponding pixels.

The display device 20, 30, 40, 50, and 60 can be driven by the method 700. Since the number of white pixels in the display devices 20, 30, 40, 50, and 60 is smaller than that of other colors, it can be When the brightness of the overall display screen is effectively improved, the saturation of the color is maintained, and the whitening of the screen is avoided, and the brightness of the screen can be increased by the white pixels, thereby saving the amount of energy loss. In addition, the display units of the display devices 20, 30, 40, 50, and 60 can be commonly mixed by different pixel groups, so that the display devices 20, 30, 40, 50, and 60 are displayed compared to the prior art display unit 100. Units can combine a greater number of distinct colors.

In summary, the display device and the method for driving the display device according to the embodiments of the present invention can divide a display unit into pixel groups including different colors, and add white pixels to each pixel group. It is possible to combine more colors than the display device of the prior art, and can efficiently increase the brightness of the overall display screen while also saving power consumption. In addition, since the number of white pixels in the display unit is still less than the number of other color pixels, the problem of whitening of the screen can be avoided, thereby increasing the flexibility of the display device in use. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10, 20, 30, 40, 50, 60‧‧‧ display devices
100‧‧‧ display unit
100R‧‧‧Red sub-pixel
100G‧‧‧Green sub-pixel
100B‧‧‧Blue sub-pixel
210, 410‧‧‧ first display unit
212, 412‧‧‧ first picture group
214, 414‧‧‧ Second Picture Group
230‧‧‧ drive circuit
A‧‧‧first color
B‧‧‧Second color
C‧‧‧Third color pixels
D‧‧‧Four color pixels
SIG1‧‧‧ first control signal
SIG2‧‧‧ second control signal
SIG _R0 , SIG _R1 , SIG _R2 , SIG _R3 ‧‧‧ Red Control Signal
SIG _G0 , SIG _G1 ‧‧‧ Green Control Signal
SIG _B0 , SIG _B1 , SIG _B2 , SIG _B3 ‧‧‧ Blue Control Signal
320, 520, 620‧‧‧ second display unit
322, 522, 622‧‧‧ Third Picture Group
324, 524, 624‧‧‧ fourth pixel group
700‧‧‧ method
S710 to S750‧‧‧ steps
Sub-steps S712 to S716‧‧

Figure 1 is a schematic illustration of a prior art display device. Fig. 2 is a schematic view showing a display device according to an embodiment of the present invention. FIG. 3 is a schematic diagram of signal connection between a driving circuit and a first display unit according to an embodiment of the invention. Fig. 4 is a schematic view showing a display device according to another embodiment of the present invention. Fig. 5 is a schematic view showing a display device according to another embodiment of the present invention. Figure 6 is a schematic view of a display device according to another embodiment of the present invention. Figure 7 is a schematic view of a display device according to another embodiment of the present invention. Figure 8 is a flow chart showing a method of driving a display device according to an embodiment of the present invention. Figure 9 is a flow chart of the steps of Figure 8.

20‧‧‧ display device

210‧‧‧First display unit

212‧‧‧First Picture Group

214‧‧‧Second Picture Group

230‧‧‧ drive circuit

A‧‧‧first color

B‧‧‧Second color

C‧‧‧Third color pixels

D‧‧‧Four color pixels

Claims (16)

A display device includes: a plurality of columns of first display units, each column of the first display unit comprising a plurality of first display units, and each of the first display units comprises: a first pixel group, each of the first pixel groups a plurality of first color pixels, a plurality of second color pixels, and at least a fourth color pixel arranged in a manner of (2 ^m -1) x 3, and the first pixels of the first pixel group The number of color pixels is greater than the number of the second color pixels of the first pixel group, and the number of the second color pixels of the first pixel group is greater than the number of the first pixel group. a fourth color pixel; and a second pixel group adjacent to the first pixel group, each second pixel group comprising a plurality of (2 ^m -1) x 3 a second color pixel, a plurality of third color pixels, and at least a fourth color pixel, and the number of the third color pixels of the second pixel group is greater than the second pixel group The number of second color pixels, and the number of the second color pixels of the second pixel group is greater than or equal to the number of the at least one fourth color pixel of the second pixel group And a driving circuit for driving the first display units of the columns; wherein: m is a positive integer greater than 1; in each first display unit, the first color pixels of the first pixel group The number is the same as the number of the third color pixels of the second pixel group; in each of the first display units, the at least one fourth color pixel of the first pixel group and the second picture The at least one fourth color pixel of the prime group is not adjacent; and in each first display unit, the at least one fourth color pixel of the first pixel group is in the middle of the first pixel group And the at least one fourth color pixel of the second pixel group is located in the middle column of the second pixel group. The display device of claim 1, wherein the driving circuit is configured to output a first control signal of 3 xm bits to drive the first pixel group, and output a 3 xm bit second control signal to drive The second pixel group. The display device of claim 1, wherein: m is 2; the first pixel group includes five first color pixels, three second color pixels, and a fourth color pixel; The two pixel group includes five third color pixels, three second color pixels, and a fourth color pixel. The display device of claim 3, further comprising: a plurality of columns of second display units, each column of the second display unit comprising a plurality of second display units, and each of the second display units comprising: a third pixel group Adjacent to the first pixel group, the third pixel group includes five third color pixels, three second color pixels, and a fourth color pixel; and a fourth pixel group, and the The second pixel group is adjacent to each other, and the third pixel group includes five first color pixels, three second color pixels, and a fourth color pixel. The display device of claim 1, wherein: m is 2; the first pixel group includes five first color pixels, three second color pixels, and a fourth color pixel; and the second The pixel group includes five third color pixels, two second color pixels, and two fourth color pixels; wherein: the fourth color pixel of the first pixel group is located in the first pixel a central location of the group; and the two fourth color pixels of the second pixel group are not adjacent to each other. The display device of claim 5, further comprising: a plurality of second display units, each of the second display units comprising a plurality of second display units, and each of the second display units comprises: a third pixel group Adjacent to the first pixel group, the third pixel group includes five third color pixels, two second color pixels, and two fourth color pixels; and a fourth pixel group, and The second pixel group is adjacent to each other, and the fourth pixel group includes five first color pixels, three second color pixels, and a fourth color pixel; wherein: the fourth pixel group The four color pixels are located at a central position of the fourth pixel group; and the two fourth color pixels of the third pixel group are not adjacent to each other. The display device according to any one of claims 1 to 6, wherein: the first color pixels of the first pixel group are a plurality of red pixels, and the second pixels of the first pixel group The color pixels and the second color pixels of the second pixel group are a plurality of green pixels, and the at least one fourth color pixel of the first pixel group and the second pixel group The at least one fourth color pixel is a plurality of white pixels, and the third color pixels of the second pixel group are a plurality of blue pixels. The display device according to any one of claims 1 to 6, wherein: the first color pixels of the first pixel group are a plurality of blue pixels, and the first pixels of the first pixel group The two color pixels and the second color pixels of the second pixel group are a plurality of green pixels, and the at least one fourth color pixel of the first pixel group and the second pixel group The at least one fourth color pixel is a plurality of white pixels, and the third color pixels of the second pixel group are a plurality of red pixels. A method for driving a display device, the display device comprising a plurality of columns of first display units, each column of the first display unit comprising a plurality of first display units, and each of the first display units comprising the first pixel group and the second pixel a group, each of the first pixel groups includes a plurality of first color pixels, a plurality of second color pixels, and at least a fourth color pixel arranged in a manner of (2 ^m -1) x 3, and first The number of the first color pixels of the pixel group is greater than the number of the second color pixels of the first pixel group, and the number of the second color pixels of the first pixel group is greater than the number of the second color pixels. The number of the at least one fourth color pixel of the first pixel group, and the second pixel group is adjacent to the first pixel group, and each second pixel group includes (2 ^m -1) a plurality of second color pixels, a plurality of third color pixels, and at least a fourth color pixel arranged in a manner of x 3, and the number of the third color pixels of the second pixel group is greater than the number The number of the second color pixels of the two pixel group, and the number of the second color pixels of the second pixel group is greater than or equal to the number of the second pixel group a method of converting a three-color luminance data set corresponding to one of the first display units into a four-color luminance data set corresponding to the first display unit; The first color luminance value of the data group drives the first color pixels of the first pixel group; and the second color luminance values of the one of the four color luminance data groups drive the first pixels of the first pixel group a second color pixel and the second color pixels of the second pixel group; driving the third color pixels of the second pixel group according to a third color brightness value of the four color brightness data set; And driving the at least one fourth color pixel of the first pixel group and the at least one fourth color pixel of the second pixel group according to a fourth color brightness value of the four color brightness data group; wherein: m is a positive integer greater than 1; in each first display unit, the number of the first color pixels of the first pixel group and the number of the third color pixels of the second pixel group In the first display unit, the at least one fourth color pixel system of the first pixel group and the second pixel group The at least one fourth color pixel is not adjacent; and in each of the first display units, the at least one fourth color pixel of the first pixel group is located in a middle column of the first pixel group and the The at least one fourth color chromin of the second pixel group is located in the middle column of the second pixel group. The method of claim 9, wherein the converting the three-color luminance data set corresponding to the first display unit into the four-color luminance data set corresponding to the first display unit comprises: calculating corresponding to the first a saturation of the three-color luminance data set of the display unit; setting the fourth color luminance value in the four-color luminance data set corresponding to the first display unit to a maximum value of the fourth color luminance value And calculating the first color brightness value, the second color brightness value, and the third color brightness value in the four color brightness data set according to the three color brightness data set to make the four color brightness data set one saturation phase Equal to the saturation of the three-color luminance data set. The method of claim 9, wherein: m is 2; the first pixel group comprises five first color pixels, three second color pixels, and a fourth color pixel; and the second The pixel group includes five third color pixels, three second color pixels, and a fourth color pixel. The method of claim 11, wherein the display device further comprises: a plurality of columns of second display units, staggered with the plurality of columns of the first display unit, each column of the second display unit comprising a plurality of second display units, and each A second display unit comprises: a third pixel group adjacent to the first pixel group, the third pixel group comprising five third color pixels, three second color pixels, and a fourth a color pixel; and a fourth pixel group adjacent to the second pixel group, the third pixel group comprising five first color pixels, three second color pixels, and a fourth color picture Prime. The method of claim 9, wherein: m is 2; the first pixel group comprises five first color pixels, three second color pixels, and a fourth color pixel; and the second picture The prime group includes five third color pixels, two second color pixels, and two fourth color pixels; wherein: the fourth color pixel of the first pixel group is located in the first pixel group a central location; and the two fourth color pixels of the second pixel group are not adjacent to each other. The method of claim 13, wherein the display device further comprises: a plurality of second display units, staggered with the plurality of first display units, each column of the second display unit comprising a plurality of second display units, and each A second display unit comprises: a third pixel group adjacent to the first pixel group, the third pixel group comprising five third color pixels, two second color pixels, and two a four-color pixel; and a fourth pixel group adjacent to the second pixel group, the fourth pixel group comprising five first color pixels, three second color pixels, and a fourth color a pixel; wherein: the fourth color pixel of the fourth pixel group is located at a center position of the fourth pixel group; and the two fourth color pixels of the third pixel group are not in phase with each other adjacent. The method of any one of claims 9 to 14, wherein: the first color pixels of the first pixel group are a plurality of red pixels, and the second colors of the first pixel group The pixels and the second color pixels of the second pixel group are a plurality of green pixels, the at least one fourth color pixel of the first pixel group and the at least the second pixel group A fourth color pixel is a plurality of white pixels, and the third color pixels of the second pixel group are a plurality of blue pixels. The method of any one of claims 9 to 14, wherein: the first color pixels of the first pixel group are a plurality of blue pixels, and the second pixels of the first pixel group The color pixels and the second color pixels of the second pixel group are a plurality of green pixels, and the at least one fourth color pixel of the first pixel group and the second pixel group At least one fourth color pixel is a plurality of white pixels, and the third color pixels of the second pixel group are a plurality of red pixels.