Display driving method and display apparatus

• US 10,629,143 B2
• Filed: 12/08/2017
• Issued: 04/21/2020
• Est. Priority Date: 10/10/2017
• Status: Active Grant

• Current Assignee: HKC Corporation Limited (Shenzhen Huike Investment Holding Co., Ltd.)
• Original Assignee: HKC Corporation Limited (Shenzhen Huike Investment Holding Co., Ltd.)
• Inventors: Shan, Jianfeng
• Primary Examiner(s): Harris, Dorothy
• Application Number:
  US15/751,092
• Publication Number:
  US 20200020286A1
• Time in Patent Office: 865 Days
• Field of Search: None
• CPC Class Codes: G09G 2310/027 Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2320/028 by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
• CPC Class Codes: G09G 2320/0686 with two or more screen areas displaying information with different brightness or colours
• CPC Class Codes: G09G 3/3426 the different display panel areas being distributed in two dimensions, e.g. matrix
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 5/026 Control of mixing and/or overlay of colours in general G09G5/022 and G09G5/024 take precedence

Abstract

A display driving method includes: acquiring the original light source intensity of each of hues of the content to be displayed and in the preset display area; setting up the driving light source intensity in the display area to be three times of the original light source intensity; acquiring the original gray scale data group of each of pixel units of the content to be displayed and in the preset display area; according to the original gray scale data group of each of pixel units, dividing the original gray scale data group into a first gray scale data group, a second gray scale data group and a third gray scale data group; the gray scale of each of hues in the first gray scale data group is the smallest gray scale, the gray scale of each of hues of the second gray scale data group is the gray scale difference or the common gray scale of the gray scale differences, the third gray scale data group is the difference between the original gray scale data group and a gray scale sum.

Claims

1. A display driving method comprising:

Acquiring an original light source intensity of each of hues of a content to be displayed in a preset display area;

setting up the driving light source intensity in the display area to be three times of the original light source intensity;

acquiring an original gray scale data group of each of pixel units of the content to be displayed in the preset display area; and

dividing the original gray scale data group into a first gray scale data group, a second gray scale data group, and a third gray scale data group according to the original gray scale data group of each of the pixel units;

wherein a gray scale of each of each of the hues in the first gray scale data group is the smallest gray scale, a gray scale of each of the hues of the second gray scale data group is a gray scale difference or a common gray scale of the gray scale differences, the third gray scale data group is a difference between the original gray scale data group and a gray scale sum;

wherein the gray scale difference is a difference of the gray scale of each of the hues between the original gray scale data group and the first gray scale data group, and the gray scale sum is a sum of the gray scale of each of the hues in the first gray scale data group and the second gray scale data group.

2. The method according to claim 1, wherein after dividing the original gray scale data group into the first gray scale data group, the second gray scale data group, and the third gray scale data group, the method further comprises:

determining an average gray scale in the preset display area according to the original gray scale data group;

acquiring, in the preset display area, a first quantity that a gray scale of hues corresponding to a minimal gray scale in the average gray scale and among the second gray scale data group is 0, and/or a second quantity that a gray scale of hues corresponding to the minimal gray scale in the average gray scale and among the third gray scale data group is 0, and/or a third quantity that a gray scale of hues corresponding to a second minimal gray scale in the average gray scale and among the third gray scale data group is 0; and

setting the driving light source intensity of each of the hues corresponding to the minimal gray scale in the preset area to be 0 in displaying the second gray scale data group when the first quantity satisfies a first preset condition; and

/or setting the driving light source intensity of each of the hues corresponding to the minimal gray scale in the preset area to be 0 in displaying the third gray scale data group when the second quantity satisfies a second preset condition; and

/or setting the driving light source intensity of each of the hues corresponding to the minimal gray scale in the preset area to be 0 in displaying the third gray scale data group when the third quantity satisfies a third preset condition.

3. The method according to claim 2, wherein the first quantity comprises a first maximal in-array quantity and/or a first maximal quantity.

4. The method according to claim 3, wherein the first preset condition comprises:

a ratio of the first maximal in-array quantity to a quantity of pixel unit in a preset matrix is greater than a first preset ratio; and

/or a ratio of the first maximal total quantity to the quantity of pixel unit in the preset display area is greater than a second preset ratio.

5. The method according to claim 2, wherein the second quantity comprises a second maximal in-array quantity and/or a second maximal quantity.

6. The method according to claim 5, wherein the second preset condition comprises a ratio of the second maximal in-array quantity to a quantity of pixel unit in a preset matrix is greater than a third preset ratio;

and/or a ratio of the second maximal total quantity to the quantity of pixel unit in the preset display area is greater than a forth preset ratio.

7. The method according to claim 2, wherein the third quantity comprises a third maximal in-array quantity and/or a third maximal quantity.

8. The method according to claim 7, wherein the third preset condition comprises a ratio of the third maximal in-array quantity to a quantity of pixel unit in a preset matrix is greater than a fifth preset ratio;

and/or a ratio of the third maximal total quantity to the quantity of pixel unit in the preset display area is greater than a sixth preset ratio.

9. The method according to claim 2, wherein the step of acquiring, in the preset display area, the first quantity that the gray scale of each of the hues corresponding to a minimal gray scale in the average gray scale and among the second gray scale data group is 0 is:

acquiring, in the preset display area, the first quantity that the brightness ratio of each of the hues corresponding to a minimal gray scale in the average gray scale and among the second gray scale data group is less than the first preset value.

10. The method according to claim 2, wherein the step of acquiring, in the preset display area, the second quantity that the gray scale of each of the hues corresponding to the minimal gray scale in the average gray scale and among the third gray scale data group is 0 is:

acquiring, in the preset display area, the second quantity that the brightness ratio of each of the hues corresponding to a minimal gray scale in the average gray scale and among the third gray scale data group is less than the second preset value.

11. The method according to claim 2, wherein the step of acquiring, in the preset display area, the third quantity that the gray scale of each of the hues corresponding to the minimal gray scale in the average gray scale and among the third gray scale data group is 0 is:

acquiring, in the preset display area, the third quantity that the brightness ratio of each of the hues corresponding to a minimal gray scale in the average gray scale and among the third gray scale data group is less than the third preset value.

12. The method according to claim 2, wherein after dividing the original gray scale data group into the first gray scale data group, the second gray scale data group, and the third gray scale data group, the method further comprises:

acquiring an original display duration of the original gray scale data group; and

continuously displaying the first gray scale data group, the second gray scale data group, and the third gray scale data group within the original display duration.

13. The method according to claim 12, wherein the display duration of each of the first gray scale data group, the second gray scale data group, and the third gray scale data group is ⅓

of the original display duration.

14. The method according to claim 2, wherein prior to the step of acquiring the original gray scale data group of each of the pixel units of the content to be displayed and in the preset display area, and prior to acquiring the original light source intensities of each of the hues of the content to be displayed and in the preset display area, the method further comprises:

dividing a display region of an LCD into at least two display areas, and regarding the display areas as the preset display area sequentially.

15. The method according to claim 2, wherein the step of dividing the original gray scale data group into the first gray scale data group, the second gray scale data group, and the third gray scale data group according to the original gray scale data group of each of pixel units comprises:

determining the gray scales of each of the hues in the first gray scale data group according to the minimal gray scale of the original gray scale data group;

determining the gray scales of each of the hues of the second gray scale data group to be gray scale differences or common gray scales of the gray scale differences according to the original gray scale data group and the first gray scale data group;

wherein the gray scale differences are the differences of the gray scales of each of the hues between the original gray scale data group and the first gray scale data group; and

determining the third gray scale data group according to the original gray scale data group and a gray scale sum;

wherein the gray scale sum is the sum of the gray scales of each of the hues in the first gray scale data group and the second gray scale data group.

16. The method according to claim 1 wherein the step of acquiring the original gray scale data group of each of the pixel units of the content to be displayed and in the preset display area comprises:

acquiring original light source intensities of each of the hues of a content to be displayed in a preset display area by a table look-up.

17. A display apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executes the computer program to provide steps of a display driving method of claim 1.

18. A display driving method comprising:

acquiring an original light source intensity of each of hues of a content to be displayed in a preset display area by a table look-up;

setting up the driving light source intensity in the display area to be three times of the original light source intensity;

acquiring original gray scale data group of each of pixel units of the content to be displayed in the preset display area;

dividing the original gray scale data group into a first gray scale data group, a second gray scale data group and a third gray scale data group according to the original gray scale data group of each of the pixel units;

wherein a gray scale of each of the hues in the first gray scale data group is the smallest gray scale, a gray scale of each of the hues of the second gray scale data group is a gray scale difference or a common gray scale of the gray scale differences, the third gray scale data group is a difference between the original gray scale data group and a gray scale sum;

the gray scale difference is a difference of the gray scale of each of the hues between the original gray scale data group and the first gray scale data group, and the gray scale sum is a sum of the gray scale of each of the hues in the first gray scale data group and the second gray scale data group;

determining an average gray scale in the preset display area according to the original gray scale data group;

acquiring, in the preset display area, a first quantity that a gray scale of hues corresponding to a minimal gray scale in the average gray scale and among the second gray scale data group is 0, and/or a second quantity that a gray scale of hues corresponding to the minimal gray scale in the average gray scale and among the third gray scale data group is 0, and/or a third quantity that a gray scale of hues corresponding to a second minimal gray scale in the average gray scale and among the third gray scale data group is 0; and

setting the driving light source intensity of each of the hues corresponding to the minimal gray scale in the preset area to be 0 in displaying the second gray scale data group when the first quantity satisfies a first preset condition; and

/or setting the driving light source intensity of each of the hues corresponding to the minimal gray scale in the preset area to be 0 in displaying the third gray scale data group when the second quantity satisfies a second preset condition; and

/or setting the driving light source intensity of each of the hues corresponding to the minimal gray scale in the preset area to be 0 in displaying the third gray scale data group when the third quantity satisfies a third preset condition.