LED-display-screen drive chip and LED display screen

Abstract

Provided are LED-display-screen drive chip and LED display screen, wherein the drive chip is configured such that: when a grayscale value R of a grayscale data is less than or equal to Q, the grayscale data is allocated to one display group in M display groups; and when the grayscale value R of the grayscale data is larger than Q, the grayscale value of one display group of the M display groups is P, wherein P>=Q, and a total grayscale value of remaining M−1 display groups is R−P, wherein in display groups in the remaining M−1 display groups whose grayscale value is not 0, a number of display groups whose grayscale value is less than L is not more than 1, wherein L≥1, Q>L, and Q is a centralized display threshold. The present disclosure is capable of making the low-grayscale display effect smoother and improving the display effect.

Dependencies are inferred from the claim text.