A 402-output TFT-LCD driver IC with power-controlling function by selecting number of colors

Proceedings of the IEEE 2002 Custom Integrated Circuits Conference (Cat. No.02CH37285) Pub Date : 2002-08-07 DOI:10.1109/CICC.2002.1012808

T. Itakura, H. Minamizaki, Tetsuya Saito, Tadashi Kuroda

引用次数: 1

Abstract

A 402-output TFT-LCD driver with a power-controlling function by selecting a number of colors to be displayed is described. Power-controlling is realized by turning on and off reference voltage buffers used in DACs to convert RGB digital signals. The buffers must drive 1 to 402 capacitive loads. A phase compensation using a zero formed with the capacitive loads is proposed for the buffers. The analog section consumes 529 /spl mu/A, 182 /spl mu/A, 112 /spl mu/A for 262,144 colors, 4,096 colors, 512 colors, respectively.

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一个402输出的TFT-LCD驱动IC，具有通过选择颜色数量来控制功率的功能

描述了一种具有功率控制功能的402输出TFT-LCD驱动器，该驱动器通过选择要显示的颜色数量来控制功率。功率控制是通过打开和关闭参考电压缓冲器来实现的，这些缓冲器用于dac转换RGB数字信号。缓冲器必须驱动1到402电容性负载。提出了一种利用容性负载形成的零相补偿方法。模拟部分分别为262,144个色、4,096个色、512个色消耗529 /spl mu/A、182 /spl mu/A、112 /spl mu/A。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the IEEE 2002 Custom Integrated Circuits Conference (Cat. No.02CH37285)

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