18668564. HALO TEST METHOD AND HALO TEST DEVICE (HKC CORPORATION LIMITED)

HALO TEST METHOD AND HALO TEST DEVICE

Organization Name

HKC CORPORATION LIMITED

Inventor(s)

Yang He of Shenzhen (CN)

Junfeng Xie of Shenzhen (CN)

HALO TEST METHOD AND HALO TEST DEVICE

This abstract first appeared for US patent application 18668564 titled 'HALO TEST METHOD AND HALO TEST DEVICE

Original Abstract Submitted

A halo test method includes selecting one or more to-be-tested regions from a to-be-tested display device; and lighting up a target test region with a preset grey scale; and then obtaining luminances where a plurality of unlit pixel points within a preset range from the target test region are located, and obtaining the normalized grey scales corresponding to the luminances where each unlit pixel point is located; and then based on the normalized grey scale corresponding to the luminance, obtaining normalized grey scale difference information measured in the target test region; and obtaining a halo value of the to-be-tested display device based on the normalized grey scale difference information measured in the one or more to-be-tested regions.