DocumentCode
1269676
Title
Photosensitive Inverter and Ring Oscillator With Pseudodepletion Mode Load for LCD Applications
Author
Jin, Sung Hun ; Park, Mun-Soo ; Shur, Michael S.
Author_Institution
CAE Group, Samsung Electron. Co., Ltd., Yongin, South Korea
Volume
30
Issue
9
fYear
2009
Firstpage
943
Lastpage
945
Abstract
Photosensitive inverters and ring oscillators (ROs) with pseudodepletion mode loads (PDMLs) were integrated in LCD panels using conventional mass production processes. The delay time (t pd) of five-stage ROs with PDML reduced from 204.3 ??s under dark to 16.3 ??s under backlight illumination of 20 000 lx. The oscillation frequency exhibited a power-law dependence (f osc ??IL??) on the backlight illuminance with the extracted fitting parameter ?? = 0.447 at room temperature.
Keywords
invertors; liquid crystal displays; mass production; LCD panel; backlight illuminance; mass production process; photosensitive inverter; power-law dependence; pseudodepletion mode; ring oscillator; temperature 293 K to 298 K; time 16.3 mus; Backlight; noise margin; photosensitive inverters; pseudodepletion mode load (PDML); ring oscillators (ROs);
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/LED.2009.2026716
Filename
5184879
Link To Document