HDR television and method for regionally dimming

• Main Authors: Dai, Gengxin, Yang, Jian, Yu, Minghuo, Wu, Zhaobin
• Format: Patent
• Language: English
• Published: 17.09.2019
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS

Disclosed an HDR television and a method for regionally dimming, the HDR television including a display screen, an offset calculation module, a constant-current driving and controlling module, a plurality of constant-current driving circuits, a plurality of light bars, an image processing MCU, and a memory; the display screen is divided into a plurality of regions, and the plurality of light bars are respectively distributed in the plurality of display screen regions; the image processing MCU is configured to output a grayscale signal; the offset calculation module is configured to acquire brightness information of each region of the display screen, calculate a reference offset of each region according to the brightness information of each region, and store the reference offset in the memory; the constant-current driving and controlling module is configured to read the reference offset in the memory.