We surveyed 0.5 square degrees in the Bar of the LMC with ISOCAM at 4.5 and 12 mum, and with DENIS in the I, J, and K-S bands. Our goal was to build a complete sample of Thermally-Pulsing AGB stars. Here we present the first analysis of 0.14 square degrees. In total we find about 300 TP-AGB stars. Among these TP-AGB stars, 9% are obscured AGB stars (high mass-loss rates); 9 of them were detected by IRAS, and only I was previously identified. Their luminosities range from 2 500 to 14 000 L., with a distribution very similar to the one of optical TP-AGB stars (i.e. those with low mass-loss rates). Such a luminosity distribution.