In reality, the Panasonic, as I stated earlier, has a slight advantage in terms of "blacker blacks", but the Sanyo does reveal more detail
The InFocus IN82 below, is similar in exposure to the Panasonic PT-AE2000U, and not as bright as the Sanyo image.
Below, from Space Cowboys, and is an overexposed image of the re-entry scene. Click on the left thumbnail image. Look for subtle detail in the right side of the earth. The image on the left is the Panasonic, and on the right, the Optoma HD8000. Look to the dark areas on the right for differences in details.