US 12,446,430 B2
Display panel with dummy pixel space, display device and display driving method
Zhaohui Meng, Beijing (CN)
Assigned to Beijing BOE Optoelectronics Technology Co., Ltd., Beijing (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 17/772,477
Filed by Beijing BOE Optoelectronics Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jul. 27, 2021, PCT No. PCT/CN2021/108617
§ 371(c)(1), (2) Date Apr. 27, 2022,
PCT Pub. No. WO2023/004574, PCT Pub. Date Feb. 2, 2023.
Prior Publication US 2024/0306460 A1, Sep. 12, 2024
Int. Cl. G09G 3/20 (2006.01); G09G 3/3208 (2016.01); H10K 59/35 (2023.01)
CPC H10K 59/353 (2023.02) [G09G 3/2074 (2013.01); G09G 3/3208 (2013.01); G09G 2300/0413 (2013.01); G09G 2300/0452 (2013.01); G09G 2320/0233 (2013.01); H10K 59/351 (2023.02); H10K 59/352 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A display driving method for a display device, wherein the display device comprises a display panel, wherein the display panel comprises a first display region and a second display region, wherein the first display region is provided with a first pixel density, and the second display region is provided with a second pixel density smaller than the first pixel density;
each of the first display region and the second display region comprises a plurality of pixel repeat units, and each pixel repeat unit comprises a first sub-pixel in a first color, a second sub-pixel in a second color, a third sub-pixel in a third color and a fourth sub-pixel in the first color sequentially arranged along a first direction;
a light-emitting area of the first sub-pixel in the first color and a light-emitting area of the fourth sub-pixel in the first color are both smaller than a light-emitting area of the second sub-pixel in the second color and a light-emitting area of the third sub-pixel in the third color; and
a dummy pixel space is formed in a second pixel row between a first pixel repeat unit in a first pixel row and a second pixel repeat unit in a third pixel row in three adjacent pixel rows at the second display region, an area of the dummy pixel space is at least greater than or equal to an area occupied by one pixel repeat unit, and a lengthwise extension direction of the pixel row is parallel to the first direction;
wherein the method comprises:
receiving a row scanning signal on a target driving row when an image is inputted; and
inputting a data signal to at least two adjacent pixel rows corresponding to the target driving row in response to the row scanning signal,
wherein a part of sub-pixels in the pixel repeat units in one of the at least two adjacent pixel rows and a part of sub-pixels in the pixel repeat units in an adjacent pixel row are enabled in response to the row scanning signal to form dummy display pixels, and at least a part of the dummy display pixels formed in response to the row scanning signal are located in the dummy pixel space at the second display region;
wherein a relationship between the dummy display pixels enabled in response to the row scanning signal and the sub-pixels of the pixel repeat units is expressed as Gi,j=gi,j,

OG Complex Work Unit Math
 Gi+2,j=gi+2,j, Gi+2,j+2=gi+2,j+2,

OG Complex Work Unit Math
 wherein Gi,j and Ri,j are grayscale values of a first color sub-pixel and a second color sub-pixel of a dummy display pixel in an ith row and a jth column respectively, Gi+1,j is a grayscale value of a first color sub-pixel of a dummy display pixel in an (i+1)th row and the jth column, Bi+2,j is a grayscale value of a third color sub-pixel of a dummy display pixel in an (i+2)th row and the jth column, Gi+2,j is a grayscale value of a first color sub-pixel of the dummy display pixel in the (i+2)th row and the jth column, Bi,j+2 is a grayscale value of a third color sub-pixel of a dummy display pixel in the ith row and a (j+2)th column, Gi+2,j+2 is a grayscale value of a first color sub-pixel of a dummy display pixel in the (i+2)th row and the (j+2)th column, Ri+2,j−2 is a grayscale value of a second color sub-pixel of a dummy display pixels of the (i+2)th row and a (j−2)th column, gi,j is a grayscale value of first color sub-pixels of a plurality of pixel repeat units in the ith row and the jth column, gi+1,j is a grayscale value of first color sub-pixels of a plurality of pixel repeat units in the (i+1)th row and the jth column, ri,j−2 is a grayscale value of second color sub-pixels of a plurality of pixel repeat units in the ith row and the (i−2)th column, ri,j is a grayscale value of second color sub-pixels of a plurality of pixel repeat units in the ith row and the jth column, bi,j+2 is a grayscale value of third color sub-pixels of a plurality of pixel repeat units in the ith row and the (j+2)th column, bi+2,j is a grayscale value of third color sub-pixels of a plurality of pixel repeat units in the (i+2)th row and the jth column, gi+2,j is a grayscale value of first color sub-pixels of a plurality of pixel repeat units in the (i+2)th row and the jth column, gi+2,j+2 is a grayscale value of first color sub-pixels of a plurality of pixel repeat units in the (i+2)th row and the (i+2)th column, bi−2,j is a grayscale value of third color sub-pixels of a plurality of pixel repeat units in an (i−2)th row and the jth column, ri−2,j is a grayscale value of second color sub-pixels of a plurality of pixel repeat units in the (i−2)th row and the jth column, ri+2,j−2 is a grayscale value of second color sub-pixels of a plurality of pixel repeat units in the (i+2)th row and the (j−2)th column, and γ is a preset grayscale function.