IP Library Granted Patent US 11,367,382
Granted Patent B2
US 11,367,382 · App. 16/620,514 · Granted Jun 21, 2022

Display device driving method

Inventors: Zeng Wang (Shenzhen, CN); Pengfei Liang (Shenzhen, CN)
Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
G09G3/32G09G2300/0452G09G2320/0247
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Quick Facts
Patent No.
US 11,367,382
App. No.
16/620,514
Granted
Jun 21, 2022
Kind
B2
Abstract

The present invention provides a method of driving a display device, comprising the steps of: step S 1 , providing a display device, comprising a plurality of sub-pixels arranged in an array; step S 2 : dividing data signals of the sub-pixels in a frame of an image into a plurality of sub-frames having different time weights; step S 3 , dividing the plurality of sub-pixels into at least two driving groups, and the plurality of sub-frames corresponding to the sub-pixels in different driving groups having different display order; and step S 4 , driving each of the sub-pixels to display image according to a display order of one of the sub-frames corresponding to each of the sub-pixels, such that through setting different display order of sub-frames of the sub-pixels of different driving groups, the flicker caused by the digital driving can be reduced without increasing driving frequency.

Claims (26)

1. A method of driving a display device, comprising the steps of:

step S 1 , providing a display device comprising a plurality of sub-pixels arranged in an array;

step S 2 : dividing data signals of the sub-pixels in a frame of an image into a plurality of sub-frames having different time weights;

step S 3 , dividing the plurality of sub-pixels into at least two driving groups, and the plurality of sub-frames corresponding to the sub-pixels in different driving groups having different display order; and

step S 4 , driving each of the sub-pixels to display image according to a display order of one of the sub-frames corresponding to each of the sub-pixels,

wherein in the step S 2 , the plurality of sub-pixels are divided into two groups, the sub-pixels in odd-numbered rows belong to a first group, and the sub-pixels in even-numbered rows belong to a second group;

in the step S 2 , the data signals of the sub-pixels in the frame of the image are divided into four sub-frames having the different time weights, which respectively comprise a first sub-frame, a second sub-frame, a third sub-frame, and a fourth sub-frame, and the time weights of the first sub-frame, the second sub-frame, the third sub-frame, and the fourth sub-frame are sequentially increased;

in the step S 4 , the sub-pixels in the odd-numbered rows are sequentially displayed in an order of the first sub-frame, the second sub-frame, the third sub-frame, and the fourth sub-frame; and

the sub-pixels in the even-numbered rows are sequentially displayed in an order of the fourth sub-frame, the second sub-frame, the first sub-frame, and the third sub-frame.

2. The method of driving the display device according to claim 1 , wherein in the step S 1 , the sub-pixels in each of the rows are provided with their corresponding ones of scanning lines, and the sub-pixels in each of the rows are electrically connected to the corresponding ones of the scanning lines.

3. The method of driving the display device according to claim 1 , wherein the plurality of sub-pixels comprise first sub-pixels, second sub-pixels, and third sub-pixels, each having a color different from another, and in the sub-pixels of a same row, the first sub-pixel, the second sub-pixel, and the third sub-pixel are repeatedly arranged in sequence, and the sub-pixels of a same column have a same color.

4. The method of driving a display device according to claim 1 , wherein the display device is an organic light-emitting diode (OLED) display device, a mini light-emitting diode (mini-LED) display device, or a micro light-emitting diode (micro-LED) display device.

5. A method of driving a display device, comprising the steps of:

step S 1 , providing a display device comprising a plurality of sub-pixels arranged in an array;

step S 2 : dividing data signals of the sub-pixels in a frame of an image into a plurality of sub-frames having different time weights;

step S 3 , dividing the plurality of sub-pixels into at least two driving groups, and the plurality of sub-frames corresponding to the sub-pixels in different driving groups having different display order; and

step S 4 , driving each of the sub-pixels to display image according to a display order of one of the sub-frames corresponding to each of the sub-pixels,

wherein the plurality of sub-pixels are divided into four groups in the step S 2 , wherein the sub-pixels in odd-numbered rows of odd-numbered columns are a first group, the sub-pixels in the odd-numbered rows of even-numbered columns are a second group, the sub-pixels of even-numbered rows of the odd-numbered columns are a third group, and the sub-pixels of the even-numbered rows of the even-numbered columns are a fourth group.

6. The method of driving the display device according to claim 5 , wherein in the step S 2 , the data signals of the sub-pixels in the frame of the image are divided into four sub-frames having the different time weights, respectively comprising a first sub-frame, a second sub-frame, a third sub-frame, and a fourth sub-frame, and the time weights of the first sub-frame, the second sub-frame, the third sub-frame, and the fourth sub-frame are sequentially increased;

in the step S 4 , the sub-pixels in the even-numbered rows of the even-numbered columns are sequentially displayed in an order of the first sub-frame, the second sub-frame, the third sub-frame, and the fourth sub-frame;

the sub-pixels in the odd-numbered rows of the even-numbered columns are sequentially displayed in an order of the second sub-frame, the first sub-frame, the third sub-frame, and the fourth sub-frame;

the sub-pixels in the even-numbered rows of the odd-numbered columns are sequentially displayed in an order of the fourth sub-frame, the second sub-frame, the first sub-frame, and the third sub-frame; and

the sub-pixels in the even-numbered rows of the even-numbered columns are sequentially displayed in an order of the third sub-frame, the fourth sub-frame, the first sub-frame, and the second sub-frame.

7. The method of driving the display device according to claim 5 , wherein in the step S 1 , the sub-pixels in each of the rows are provided with their corresponding twos of scanning lines, and in the sub-pixels in same one of the rows, the sub-pixels of the odd-numbered columns are connected to one of the scanning lines, while the sub-pixels of even-numbered columns are connected to another one of the scanning lines.

8. The method of driving a display device according to claim 5 , wherein the plurality of sub-pixels comprise first sub-pixels, second sub-pixels, and third sub-pixels, each having a color different from another, wherein the sub-pixels of the odd-numbered rows of the odd-numbered columns are the first sub-pixels, the sub-pixels of the odd-numbered rows of the even-numbered columns are the second sub-pixels, the sub-pixels of the even-numbered rows of the odd-numbered columns are the third sub-pixels, and the sub-pixels of the even-numbered rows of the even-numbered columns are the fourth sub-pixels.

9. The method of driving a display device according to claim 5 , wherein the display device is an organic light-emitting diode (OLED) display device, a mini light-emitting diode (mini-LED) display device, or a micro light-emitting diode (micro-LED) display device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2019
From: WANG, ZENG; LIANG, PENGFEI
To: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Reel/Frame 051256/0745 →
Priority Claims (1)
CN 201910803978.4 · Aug 28, 2019 · national
Continuity (1)
Related Publication 20210358391A1 · Nov 18, 2021