US 12,266,287 B2
Gamma debugging method, apparatus and device
Yuqing Wang, Kunshan (CN); Tao Tang, Kunshan (CN); and Zheng Wang, Kunshan (CN)
Assigned to KunShan Go Visionox Opto Electronics Co., Ltd, Kunshan (CN)
Filed by KunShan Go Visionox Opto Electronics Co., Ltd, Jiangsu (CN)
Filed on Jun. 23, 2023, as Appl. No. 18/340,065.
Application 18/340,065 is a continuation of application No. PCT/CN2021/135501, filed on Dec. 3, 2021.
Claims priority of application No. 202110595301.3 (CN), filed on May 28, 2021.
Prior Publication US 2023/0335033 A1, Oct. 19, 2023
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2007 (2013.01) [G09G 3/2096 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0666 (2013.01); G09G 2320/0673 (2013.01); G09G 2320/0693 (2013.01); G09G 2360/16 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method comprising:
a) controlling a display module under test to display an initial gray scale picture at a first gray scale binding point;
b) determining a target display parameter at the first gray scale binding point according to the initial gray scale picture displayed by the display module;
c) collecting an actual display parameter at the first gray scale binding point;
d) adjusting, under a condition that a difference between the actual display parameter at the first gray scale binding point and the target display parameter at the first gray scale binding point goes beyond a preset deviation threshold range, a data signal parameter corresponding to the first gray scale binding point such that the difference between the actual display parameter at the first gray scale binding point and the target display parameter at the first gray scale binding point is within the preset deviation threshold range, wherein the data signal parameter is configured to control a voltage of the data signal;
e) determining the target display parameter at an ith gray scale binding point among a plurality of gray scale binding points according to the target display parameter at the first gray scale binding point among the plurality of gray scale binding points and a preset Gamma mapping relationship, wherein the display module has a first display region and a second display region, i is an integer greater than 1, and the Gamma mapping relationship comprises a mapping relationship between gray scales and target display parameter;
f) controlling the display module to display the initial gray scale picture according to the target display parameter at the ith gray scale binding point;
g) collecting an actual display parameter of the display module at the ith gray scale binding point, wherein the gray scale of the initial gray scale picture is consistent with the gray scale corresponding to the first gray scale binding point;
h) adjusting, under a condition that a difference between the actual display parameter at the ith gray scale binding point and the target display parameter at the ith gray scale binding point goes beyond a preset deviation threshold range, a data signal parameter of the first and second display regions corresponding to the ith gray scale binding point in a parallel manner using a preset conversion relationship such that the difference between the actual display parameter at the ith grayscale binding point and the target display parameter at the ith gray scale binding point is within the preset deviation threshold range;
i) repeating steps e) to h) for determining target display parameter at a plurality of gray scale binding points and for adjusting data signal parameter of the first and second display regions corresponding to a respective one of the plurality of gray scale binding points;
j) establishing a target mapping relationship between target display parameter and data signal parameter for the display module according to target display parameter at the plurality of gray scale binding points and data signal parameter after adjusting and corresponding to the respective one of the gray scale binding points; and
k) burning the target mapping relationship into the display module.