公开(公告)号：US20210166606A1

公开(公告)日：2021-06-03

申请号：US17264126

申请日：2020-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu HAN ,  Tieshi WANG ,  Zhongyuan WU ,  Wei CHEN ,  Enming XIE ,  Chi ZHANG ,  Yongqian LI

IPC: G09G3/20 ,  G09G3/3208

Abstract: A method includes: setting target white color coordinates, a target white luminance and a gamma value; calculating a first luminance value of each primary color at each gray scale; measuring color coordinates of the primary color at each gray scale, and generating a list of a correspondence among the gray scale, the first luminance value and the color coordinates of the primary color; selecting a plurality of gray scales, and obtaining color coordinates corresponding to one of the plurality of gray scales; calculating a second luminance value of the primary color at each of the plurality of gray scales; and obtaining and storing a luminance correction relationship of the primary color according to the second luminance value of the primary color at each of the plurality of gray scales and the first luminance values corresponding to each of the plurality of gray scales.

公开(公告)号：US20180247577A1

公开(公告)日：2018-08-30

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: G09G3/00 ,  G09G3/30

CPC classification number: G09G3/006 ,  G09G3/30 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2360/145

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：US20200035155A1

公开(公告)日：2020-01-30

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: 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：US20180031419A1

公开(公告)日：2018-02-01

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 ,  G01J1/44 ,  G01J1/02

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.