Display method for inhibiting color separation and field sequential display device

1 . A display method for inhibiting color separation, comprising:

acquiring an original image to be displayed, and determining a plurality of frames of sub-images each having a single channel according to the original image, wherein the plurality of frames of sub-images comprise a plurality of first sub-images and a second sub-image determined according to the plurality of first sub-images;

determining backlight data and pixel data of each of the plurality of frames of sub-images, wherein the backlight data serves to represent a brightness of each color contained in a backlight assembly, and the pixel data serves to represent a pixel value of each pixel unit; and

sequentially displaying at least part of sub-images in the plurality of frames of sub-images, in a preset sequence, according to the backlight data and the pixel data of respective frames of sub-images, wherein the number of frames of displayed sub-images is greater than or equal to the number of channels of the original image, the backlight data of any one frame of displayed sub-image serves to drive the backlight assembly to emit light with all colors contained in the backlight assembly, and the backlight data of the sub-images except the any one frame of displayed sub-image serves to drive the backlight assembly to each time emit light with one color contained in the backlight assembly,

wherein a plurality of frames of original images are acquired and it is determined that a current frame of original image to be displayed is not a first frame of original image, and the pixel data of a first frame of sub-image in the at least part of sub-images to be displayed is determined by:

when it is determined that the first frame of sub-image is the first sub-image, determining the pixel data of the first frame of sub-image, according to:

a difference value between pixel values of the first sub-image and the second sub-image of the current frame of original image at a corresponding position, and

a mean value of the backlight data of the first sub-image of the current frame of original image in each partition in the backlight assembly and the backlight data of the first sub-image of a previous frame of original image in the partition.

2 . The display method of claim 1 , wherein

the at least part of sub-images to be displayed comprise the second sub-image, the backlight data of the second sub-image serves to drive the backlight assembly to emit light with all colors contained in the backlight assembly, and the backlight data of the sub-images except the second sub-image serves to drive the backlight assembly to each time emit light with one color contained in the backlight assembly.

3 . The display method of claim 1 , wherein

the backlight data of a first frame of sub-image in the at least part of sub-images to be displayed serves to drive the backlight assembly to emit light with all colors contained in the backlight assembly, and the backlight data of subsequent frames of sub-images serves to drive the backlight assembly to each time emit light with one color contained in the backlight assembly.

4 . The display method of claim 1 , wherein the plurality of first sub-images and the second sub-image are determined by:

splitting the original image into a plurality of images each having a single channel, according to the number of channels of the original image, and determining the plurality of images each having a single channel as the plurality of first sub-images; and

determining the second sub-image according to a minimum pixel value of the plurality of first sub-images at a corresponding position.

5 . The display method of claim 1 , wherein the plurality of first sub-images comprise an image R, an image G and an image B, and a plurality of frames of original images are acquired, the sequentially displaying the at least part of sub-images in the plurality of frames of sub-images in the preset sequence comprises:

every displaying four frames of original images, sequentially displaying three sub-images of each frame of original image according to a following cyclic sequence:

when a first frame of original image is displayed, sequentially displaying three sub-images in a sequence of the second sub-image of the first frame of original image, the image R of the first frame of original image and the image G of the first frame of original image;

when a second frame of original image is displayed, sequentially displaying three sub-images in a sequence of the image B of the second frame of original image, the second sub-image of the second frame of original image and the image R of the second frame of original image;

when a third frame of original image is displayed, sequentially displaying three sub-images in a sequence of the image G of the third frame of original image, the image B of the third frame of original image and the second sub-image of the third frame of original image; and

when a fourth frame of original image is displayed, sequentially displaying three sub-images in a sequence of the image R of the fourth frame of original image, the image G of the fourth frame of original image and the image B of the fourth frame of original image.

6 . The display method of claim 1 , wherein a plurality of frames of original images are acquired and it is determined that a current frame of original image to be displayed is not a first frame of original image, and the backlight data of a first frame of sub-image in the at least part of sub-images to be displayed is determining by:

when it is determined that the first frame of sub-image is the first sub-image, determining the backlight data of the first frame of sub-image in each partition in the backlight assembly, according to a mean value of the backlight data of the first sub-image of the current frame of original image in the partition and the backlight data of the first sub-image of a previous frame of original image in the partition.

7 . The display method of claim 1 , wherein the backlight data of each of the plurality of first sub-images is determined by:

determining a maximum difference value in each partition in the backlight assembly, according to a difference value between pixel values of the first sub-image and the second sub-image at a corresponding position in the partition; and

determining the backlight data of the first sub-image in each partition, according to the maximum difference value in the partition.

8 . The display method of claim 1 , wherein a plurality of frames of original images are acquired and it is determined that a current frame of original image to be displayed is not a first frame of original image, and the backlight data of a first frame of sub-image in the at least part of sub-images to be displayed is determined by:

when it is determined that the first frame of sub-image is the second sub-image, determining the backlight data of the first frame of sub-image in each partition in the backlight assembly, according to a mean value of the backlight data of the second sub-image of the current frame of original image in the partition and the backlight data of the second sub-image of a previous frame of original image in the partition.

9 . The display method of claim 1 , wherein the backlight data of the second sub-image is determined by:

determining the backlight data of the second sub-image in each partition in the backlight assembly, according to a maximum value of pixel values of the second sub-image in the partition.

10 . The display method of claim 1 , wherein the pixel data of each of the plurality of first sub-images is determined by:

determining the pixel data of the first sub-image, according to a ratio of a difference value between pixel values of the first sub-image and the second sub-image at a corresponding position to the backlight data of a partition, where a pixel point at the corresponding position is located, in the backlight assembly.

11 . The display method of claim 1 , wherein it is determined that the first frame of sub-image is the first sub-image, and the determining the pixel data of the first frame of sub-image comprises:

determining the pixel data of the first frame of sub-image, according to a ratio of the difference value between the pixel values of the first sub-image and the second sub-image at the corresponding position to the mean value of the partition, where a pixel point at the corresponding position is located, in the backlight assembly.

12 . The display method of claim 1 , wherein the pixel data of the second sub-image is determined by:

determining the pixel data of the second sub-image, according to a ratio of each pixel value of the second sub-image to the backlight data of a corresponding partition in the backlight assembly.

13 . The display method of claim 1 , wherein a plurality of frames of original images are acquired and it is determined that a current frame of original image to be displayed is not a first frame of original image, and the second sub-image is determined by:

determining the second sub-image, according to a minimum value between a minimum pixel value among respective first sub-images of the current frame of original image at a corresponding position and a minimum pixel value among respective first sub-images of a previous frame of original image at the corresponding position.

14 . The display method of claim 1 , wherein the plurality of first sub-images comprise an image R, an image G and an image B, and the sequentially displaying the at least some of sub-images in the plurality of frames of sub-images in the preset sequence comprises:

sequentially displaying the plurality of frames of sub-images in a sequence of the second sub-image, the image R, the image G, and the image B, and/or

the backlight data of each of the plurality of first sub-images and the second sub-image is determined by:

setting each of the backlight data of the first sub-image and the backlight data of the second sub-image to be a preset value.

15 . The display method of claim 1 , wherein the pixel data of each of the plurality of first sub-images is determined by:

determining a maximum difference value in each partition in the backlight assembly, according to a difference value between pixel values of the first sub-image and the second sub-image at a corresponding position; and

determining the pixel data of the first sub-image, according to a ratio of the difference value corresponding to each pixel position in the first sub-image to the maximum difference value in the partition corresponding to the pixel position, and/or

the pixel data of the second sub-image is determined by:

determining a maximum pixel value in each partition in the backlight assembly, according to respective pixel values in the second sub-image; and

determining the pixel data of the second sub-image, according to a ratio of each pixel value in the second sub-image to the maximum pixel value in a corresponding partition.

16 . A field sequential display device, comprising a processor and a memory, wherein the memory is configured to store a program executable by the processor, and the processor is configured to read the program in the memory and to perform steps of the display method of claim 1 .

17 . A non-transitory computer storage medium storing a computer program thereon which, when executed by a processor, cause the processor to perform steps of the display method of claim 1 .

18 . A display method for inhibiting color separation, comprising:

acquiring an original image to be displayed, and determining a plurality of frames of sub-images each having a single channel according to the original image, wherein the plurality of frames of sub-images comprise a plurality of first sub-images and a second sub-image determined according to the plurality of first sub-images;

determining backlight data and pixel data of each of the plurality of frames of sub-images, wherein the backlight data serves to represent a brightness of each color contained in a backlight assembly, and the pixel data serves to represent a pixel value of each pixel unit; and

sequentially displaying at least part of sub-images in the plurality of frames of sub-images, in a preset sequence, according to the backlight data and the pixel data of respective frames of sub-images, wherein the number of frames of displayed sub-images is greater than or equal to the number of channels of the original image, the backlight data of any one frame of displayed sub-image serves to drive the backlight assembly to emit light with all colors contained in the backlight assembly, and the backlight data of the sub-images except the any one frame of displayed sub-image serves to drive the backlight assembly to each time emit light with one color contained in the backlight assembly,

wherein a plurality of frames of original images are acquired and it is determined that a current frame of original image to be displayed is not a first frame of original image, and the pixel data of a first frame of sub-image in the at least part of sub-images to be displayed is determined by:

when it is determined that the first frame of sub-image is the second sub-image, determining the pixel data of the first frame of sub-image, according to a pixel value of the second sub-image of the current frame of original image, and a mean value of the backlight data of the second sub-image of the current frame of original image in each partition in the backlight assembly and the backlight data of the second sub-image of a previous frame of original image in the partition.

19 . The display method of claim 18 , wherein it is determined that the first frame of sub-image is the second sub-image, and the determining the pixel data of the first frame of sub-image comprises:

determining the pixel data of the first frame of sub-image, according to a ratio of the pixel value of the second sub-image to the mean value of a corresponding partition in the backlight assembly.