This may seem a lot, but don’t forget the fact that the Inspiron 7548 has a relatively powerful discrete GPU and a power-hungry display with UHD resolution, not to mention the touch capacitive panel. The battery is manufactured by Panasonic Energy with a serial number of YU12013-14003 and it has a capacity of 56Wh or it roughly relates to 7600mAh. We calibrated the panel to reproduce 6500K color temperature and the deviation of DeltaE (1976) is 1.98. If you are planning to use the screen for professional photo or video editing, you might want to use an external calibrator, otherwise the screen is good as it is. The average deviation of DeltaE(76) is approximately 2.61. The display of the notebook has pretty accurate color reproduction with its stock calibration. The gamma is almost identical to the optimal one (2.20) which will guarantee good brightness distribution throughout all colors.
Only a few colors are missing from the sRGB or WEB-based. Inspiron’s 7548 display covers 93% of the RGB and 73% of the Adobe RGB color gamuts. The color temperature at this state is 6360K – a bit warmer, but really close to the optimal one (6500K). We can consider this drawback as neglectable. The biggest deviation from the surface of the screen is 19% and it’s located at the bottom right corner. Viewing angles at 45° are also excellent – typical for an IPS panel.īefore we move to the calibration, we measured the maximum brightness of the panel, which is 279 cd/m2. Here is a photo of the screen viewed under a microscope in white background. By looking the display at 30 cm or above, the panel is considered as “Retina”, because the human eye will not see the pixels from that distance. The pixel density is 282 PPI and 0.0899 x 0.0899 mm space between each pixel. The diagonal is precisely 15.6 inches (39.62 cm.) and 16:9 aspect ratio. Also the refresh rate is 60Hz which is a big plus especially for an UHD panel in a laptop. The manufacturer is Samsung with model number 2038W_156FL and contrast listed as 400:1.
Dell Inspiron 7548 uses an UHD IPS LCD touch capacitive panel with a resolution of 3840 x 2160 pixels.
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