Area-efficient multi-channel active matrix micro-LED driver chip design

“…Because the number of pixels is millions more, it is impossible to update them with the tremendously large number of dedicated lines. Thus, the matrix driving scheme with column and row lines has been employed to reduce the number of lines to access pixels [30][31][32][33][34][35][36][37][38][39]. Pixels are addressed line by line, where only pixels in a line are programmed at the same time and pixels of other lines are sequentially updated.…”

Section: Introductionmentioning

confidence: 99%

Review of Integrated Gate Driver Circuits in Active Matrix Thin-Film Transistor Display Panels

Chang,

Jeong,

Kim

et al. 2024

Preprint

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Many advanced technologies have been employed in the high performance active matrix displays including liquid crystal displays, organic light emitting diode displays, and micro light emitting diode displays. On the other side, there have existed the strong demand on the cost reduction and it is one of low cost schemes to integrate the driver circuit in a panel based on thin film transistor technologies. This paper reviews overall concept, operation principles, and various circuit approaches in shift registers for the scanning pulse generation. In addition, it deals with the implementation of additional functionalities in gate drivers to support pixel compensation, multi-line driving, in-cell capacitive touch screen, pixel sensing, and adaptive scanning region control.

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