To measure and calibrate monitors, we use an i1Pro spectrophotometer and the latest version of SpectraCal CalMAN software (v5.0.3).

For patterns, we employ an AccuPel DVG-5000 video signal generator. This approach removes video cards and drivers from the signal chain, allowing the display to receive true reference patterns. Connections are made via HDMI.
The AccuPel DVG-5000 is capable of generating all types of video signals at any resolution and refresh rate up to 1920x1080 at 60 Hz. It can also display motion patterns to evaluate a monitor's video processing capabilities, with 3D patterns available in every format. This allows us to measure color and grayscale performance, crosstalk, and ghosting in 3D content via the 3D glasses.
We realize that the On-Lap 2501M will not be calibrated by its typical user. This is, after all, a convenience product, not a performance-oriented one. Still, we feel it’s relevant to run any display through our battery of tests so that you know what image quality to expect. Except for gamma control, the On-Lap has the same calibration adjustments available on a desktop monitor. There are no picture modes, so you can’t toggle between different settings combos. The table below holds the settings that we used in our tests.
| Contrast | 50 |
|---|---|
| Brightness | 100 |
| Red | 55 |
| Green | 53 |
| Blue | 52 |
| Color Temp | User |
- GeChic On-Lap 2501M Portable Monitor
- Measurement And Calibration Methodology
- Results: Stock Brightness And Contrast
- Results: Calibrated Brightness And Contrast
- Results: Gamma And ANSI Contrast Ratio
- Results: Grayscale Tracking
- Results: Color Gamut And Performance
- Results: Viewing Angle And Uniformity
- Results: Pixel Response And Input Lag
- Battery Life And Conclusion
I don't disagree that tablets could easily include an input, but to be fair, this product is far bigger than a tablet. It may only have a niche use, but it is clearly better suited for that niche use than a tablet screen would be.
Come to think of it, laptops should include inputs too -- but to my knowledge, they never have.
Nice product, except it doesn't have its own power supply and can only take a USB signal over a DisplayLink driver. Makes for a nice quasi-mobile secondary monitor for computers, but it won't connect to most types of mobile devices like the GeChic will.
Forgot the link to the one I was talking about which is 13.3 inches
http://www.newegg.com/Product/Product.aspx?Item=9SIA0V108S5365
Absolutely.
You can get a 9 inch IPS TOUCH screen at 1900x1200 resolution, speakers, Weighs only 1.2 pounds and lasts for 8 hours on a charge.
For $20 more...$270.
http://www.amazon.com/gp/product/B008GFRE5A/ref=asc_df_B008GFRE5A?tag=hyprod-20&hvpos=1o2&hvexid=&hvnetw=g&hvrand=1878467891549516394&hvpone=
And it comes with a tablet included at no extra charge.