公开(公告)号：US11443677B2

公开(公告)日：2022-09-13

申请号：US16772312

申请日：2020-02-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Chi Zhang ,  Tieshi Wang ,  Zhongyuan Wu ,  Yongqian Li ,  Jinxia Hu

IPC: G09G3/20 ,  G09G3/3208

Abstract: The present disclosure relates to a display method of a display panel. The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.

公开(公告)号：US20210225246A1

公开(公告)日：2021-07-22

申请号：US16772312

申请日：2020-02-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Chi Zhang ,  Tieshi Wang ,  Zhongyuan Wu ,  Yongqian Li ,  Jinxia Hu

IPC: G09G3/20 ,  G09G3/3208

Abstract: The present disclosure relates to a display method of a display panel, The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.

公开(公告)号：US10508949B2

公开(公告)日：2019-12-17

申请号：US15655953

申请日：2017-07-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Tieshi Wang ,  Chi Zhang ,  Wenchao Bao ,  Min He ,  Pan Xu ,  Yongqian Li ,  Kun Cao ,  Yue Wu

IPC: G01J1/42 ,  G01J1/02 ,  G01J1/44

Abstract: Disclosed is a data acquisition device for optical compensation including a platform for carrying a display panel; and a linear image acquisition module located above the platform. The linear image acquisition module is movable relative to the platform.

公开(公告)号：US10997913B2

公开(公告)日：2021-05-04

申请号：US16453233

申请日：2019-06-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Tieshi Wang ,  Zhongyuan Wu ,  Yongqian Li ,  Chi Zhang ,  Jinxia Hu ,  Wei Chen ,  Pan Xu

IPC: G06F3/038 ,  G09G3/3233

Abstract: The present disclosure relates to a method and an apparatus for controlling a drive current of a display panel, an electronic device, and a storage medium. A standard drive current of the display panel is calculated based on the power function of the display panel. An actual drive current is detected in a working process of the display panel, and it is determined whether the actual drive current exceeds the standard by comparing the actual drive current with the standard drive current. The actual drive current is regulated if the actual drive current exceeds the standard.

公开(公告)号：US10403190B2

公开(公告)日：2019-09-03

申请号：US15975742

申请日：2018-05-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Fei Yang ,  Zhongyuan Wu ,  Yongqian Li ,  Tieshi Wang ,  Zhidong Yuan ,  Can Yuan ,  Chi Zhang ,  Yue Wu

IPC: G09G3/30 ,  G09G3/20 ,  G09G3/3208 ,  G09G5/10 ,  G09G3/00

Abstract: Disclosed are a method for color complementation on a white organic light emitting diode (WOLED) display device, and a display device. The method comprises: (a) acquiring respective first chromaticity coordinates of each of red (R), green (G), blue (B), and white (W) sub-pixel units for a brightness outputted by the WOLED display device; (b) calculating a first complementary color ratio among the R, G, B, and W sub-pixel units; (c) determining a desired brightness of the W sub-pixel unit, and obtaining respective first complementary color brightnesses of each of the R, G, B, and W sub-pixel units, and in turn determining respective second chromaticity coordinates of each of the R, G, B, and W sub-pixel units corresponding to the respective first complementary color brightness of each of the R, G, B, W sub-pixel units; and (d) implementing in iterations steps (a), (b) and (c), so as to obtain a second complementary color ratio among the R, G, B, W sub-pixel units corresponding to the desired brightness of the W sub-pixel unit. Color complementation of the WOLED display device is carried out depending on the second complementary color ratio among the R, G, B, and W sub-pixel units when the brightness outputted by the WOLED display device reaches the desired brightness of W sub-pixel unit.

公开(公告)号：US10403187B2

公开(公告)日：2019-09-03

申请号：US15720038

申请日：2017-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Tieshi Wang ,  Pan Xu ,  Wenchao Bao ,  Chi Zhang ,  Zhongyuan Wu

IPC: G09G3/20 ,  G09G3/32 ,  G09G3/36 ,  H04N9/67 ,  G09G3/34 ,  G09G3/00 ,  G09G3/30

Abstract: A gamma voltage debugging method for an electroluminescent display device, including: turning on sub-pixels in a test region to a maximum luminance value, and recording a driving current of an electroluminescent element at this time as a maximum reference current; calculating reference current values corresponding to respective gray scales according to the maximum reference current and a preset formula; and driving the sub-pixels in the test region to emit light, and for each driving current equal to a reference current value, recording a driving voltage value corresponding to the gray scale value as a gamma voltage resulted from the debugging.

公开(公告)号：US20190027081A1

公开(公告)日：2019-01-24

申请号：US15975742

申请日：2018-05-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu Han ,  Fei Yang ,  Zhongyuan Wu ,  Yongqian Li ,  Tieshi Wang ,  Zhidong Yuan ,  Can Yuan ,  Chi Zhang ,  Yue Wu

IPC: G09G3/20 ,  G09G3/3208 ,  G09G5/10

CPC classification number: G09G3/2003 ,  G09G3/006 ,  G09G3/3208 ,  G09G5/10 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2360/16

Abstract: Disclosed are a method for color complementation on a white organic light emitting diode (WOLED) display device, and a display device. The method comprises: (a) acquiring respective first chromaticity coordinates of each of red (R), green (G), blue (B), and white (W) sub-pixel units for a brightness outputted by the WOLED display device; (b) calculating a first complementary color ratio among the R, G, B, and W sub-pixel units; (c) determining a desired brightness of the W sub-pixel unit, and obtaining respective first complementary color brightnesses of each of the R, G, B, and W sub-pixel units, and in turn determining respective second chromaticity coordinates of each of the R, G, B, and W sub-pixel units corresponding to the respective first complementary color brightness of each of the R, G, B, W sub-pixel units; and (d) implementing in iterations steps (a), (b) and (c), so as to obtain a second complementary color ratio among the R, G, B, W sub-pixel units corresponding to the desired brightness of the W sub-pixel unit. Color complementation of the WOLED display device is carried out depending on the second complementary color ratio among the R, G, B, and W sub-pixel units when the brightness outputted by the WOLED display device reaches the desired brightness of W sub-pixel unit.