A 10-bit 1026-Channel Column Driver IC with Partially Segmented Piecewise Linear Digital-to-Analog Converters for UHD TFT-LCDs with One Billion Color Display

Chih Wen Lu*, Pei Yi Lai Lee, You Gang Chang, Xing Wei Huang, Jhih Siou Cheng, Po Yu Tseng, Chih Hsien Chou, Poki Chen, Tsin Yuan Chang, Jenny Yi Chun Liu

*Corresponding author for this work

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

A 10-bit 1026-channel column driver IC with partially segmented piecewise linear digital-to-analog converters (DACs) was designed, simulated, and prototyped. This device is intended to improve the color depth of ultra-high-definition thin-film transistor liquid-crystal displays. The proposed column driver can output a precise gamma-corrected transfer curve without any loss of effective bit resolution. The overall chip area of the driver IC is minimized by including an area-efficient two-voltage selector, a 2-to-4 decoder embedded level shifter, and a DAC-embedded gm-modulation operational amplifier with linearity-enhanced differential pairs. A maximum inter-chip deviation voltage of output (DVO) of 16 mV was measured from five of the proposed column-driver ICs. The die dimensions of the 1026-channel column driver IC are of only 18.14 mm × 1.2 mm. The maximum settling time of the prototype is 5.6 μs when driving a load with 5-k Ω resistance and 300-pF capacitance within 10-mV tolerance of the final voltage.

原文English
文章編號8778745
頁(從 - 到)2703-2716
頁數14
期刊IEEE Journal of Solid-State Circuits
54
發行號10
DOIs
出版狀態Published - 十月 2019

指紋 深入研究「A 10-bit 1026-Channel Column Driver IC with Partially Segmented Piecewise Linear Digital-to-Analog Converters for UHD TFT-LCDs with One Billion Color Display」主題。共同形成了獨特的指紋。

引用此