Title :
Low power reference voltages for stepwise display drivers
Author :
Saas, Christoph ; Schwarzenbeck, Thomas ; Nossek, Josef A.
Author_Institution :
Inst. for Circuit Theor. & Signal Process., Munich Univ. of Technol.
Abstract :
A significant part of the energy consumed by a flat panel display is dissipated in the controlling circuitry. The column line flat panel display driver proposed in (Saas et al., 2004) has shown the high potential of stepwise charging to reduce the power dissipation while driving the column lines of the display. The driver has been extended to full dynamic resolution in (Saas et al., 2005), thus allowing market relevant image quality. In this work a method for high efficient recharging of the temporary supply sources in the driver is presented. In the proposed approach the charging current is switched to avoid static bias currents
Keywords :
driver circuits; flat panel displays; low-power electronics; reference circuits; charging current; column lines; controlling circuitry; flat panel display; image quality; reference voltages; static bias currents; stepwise charging; stepwise display drivers; temporary supply sources; Capacitors; Circuit theory; Clocks; Driver circuits; Flat panel displays; Image resolution; Low voltage; Power dissipation; Signal processing; Switches;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693588
