Paper Title:
A LCD Touch Screen Controller Based on LPC2138
  Abstract

The user interface made of a LCD (liquid crystal display) screen and a touch screen based on LPC2138 is presented in this paper. The hardware design of the LCD and the touch screen is introduced and the software flow of the LCD and the touch screen is also described in this paper. And this paper proposes the synchronization algorithm which can achieve the LCD and the touch screen point by point with high accuracy and great reliability. On the basis of analyzing the principle of the embedded touch panel system, the working principle and control method of the dedicated controller DV320240GB touch screen are analyzed. The method for obtaining the coordinates of the touch screen and the synchronization algorithm of the LCD display are proposed to improve the efficiency of the touch screen and the LCD. The above-mentioned design has been successfully applied in ESR (erythrocyte sedimentation rate) detection system.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 27: Semiconductor Materials Manufacturing
Edited by
Wu Fan
Pages
6914-6919
DOI
10.4028/www.scientific.net/AMR.383-390.6914
Citation
J. Gao, L. Q. Zhu, Y. K. Guo, H. Meng, "A LCD Touch Screen Controller Based on LPC2138", Advanced Materials Research, Vols. 383-390, pp. 6914-6919, 2012
Online since
November 2011
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Price
$32.00
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