Box linearity correction method and device, display screen and display control method

• Main Authors: ZHOU JINZHI, WANG ANCHUN
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; PHYSICS; SEALS

The invention discloses a box linearity correction method and device, a display screen and a display control method, and the method comprises the steps: storing a gray scale-brightness table corresponding to an LED box, the gray scale-brightness table comprises a plurality of preselected gray scales and a target brightness value corresponding to each preselected gray scale, and a first determination method of the preselected gray scales comprises the steps: obtaining a preset first division item number N, equally dividing the gray scale of the LED box body into N gray scale sub-items according to the first division item number N, determining a boundary gray scale in each gray scale sub-item, and taking the boundary gray scale in each gray scale sub-item as a pre-selected gray scale; determining a target brightness value corresponding to each lamp point in the LED box body according to the gray scale-brightness table and the gray scale of each lamp point in the LED box body; and adjusting the brightness value