Affiliation:
1. Beijing BOE Display Technology Co., Ltd. Beijing China 100176
Abstract
This paper study the impact of pixel voltage leakage and liquid
crystal flexoelectric effect on flicker with simulation and
measurement method. The impact rule of pixel architecture, TFT
voltage, electrode design, liquid crystal material, driving signal
and other factors is obtained, and the key factors under different
conditions are identified. The pixel design and liquid crystal
scheme under different conditions are proposed, and a strategy of
data voltage modulation at the blanking stage combined with
frequency‐wise ACC brightness compensation is established to
reduce flicker. Based on the proposed complete flicker
optimization strategy, flicker lower than ‐50dB is achieved on
55/65/75 inch 4K gaming products when switching back and forth
at 48/120Hz every 200ms, meeting the G‐Sync flicker standard.
Cited by
3 articles.
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