Affiliation:
1. Display Device Research Institute BOE Technology Group Co., LTD. Beijing China 100176
Abstract
This paper proposes a new type of display driver circuit and TFT
device structure, studies the brightness control technology of
high PPI Micro LED display, uses the inverter PWM driver
module loaded in the traditional internal compensation driver
circuit, when the low gray scale display, By triggering PWM
module, the PWM is used to further divide the low gray scale
under PAM mode again, so as to increase the gray level.
Meanwhile, the introduction of Micro LED reverse NMOS and
PMOS laminator TFT increases the PPI from 233 to 314 retinal
level. Realized the Micro LED HD display and low brightness
controllable demand.
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