Writing of technical review article (MAR Activity): HP Pavilion 15 (15-eg0000)

 MAR Activity 2022

University roll-10300120211

Topic:Technical (scientific and management oriented)

 Review article :
HP Pavilion 15 (15-eg0000)

Design and construction
Generally, this year’s machine is a fresh upgrade over the Pavilion 15 (15-cs3000). It ditches the front-facing speakers, which in turn gives a sleeker base design. Ultimately, the notebook features aluminum on the lid and the base, but if we have to be honest, the structural integrity of the machine is not great. As soon as you twist the body you will notice some severe flexing going on, plus a bonus – a pop or two coming from the chassis. However, the laptop now weighs 1.75 kg, and has a profile of 17.8mm, which is fairly portable for a 15-incher, isn’t it?

Now, the lid cannot be opened with a single hand. In terms of rigidity, it flexes as much as the base. Thankfully, though, the bezels around the matte display are relatively thin, and the top one houses an HD camera.





Ports
On the left side of the notebook, you will find an HDMI 2.0 connector, followed by a USB Type-A 3.2 (Gen. 1) port, a USB Type-C 3.2 (Gen. 2) port with DisplayPort and Power Delivery capabilities, as well as a MicroSD card slot, and an audio jack. Then, on the right, there is the power plug, another USB Type-A 3.2 (Gen. 1) port, and a wedge-shaped security slot.

Disassembly, upgrade options, and maintenance

As usual, HP is playing the find the screw game, this time trying to hide four Phillips-head screws under the two rubber feet. In addition to that, undo the other two, which are visible, and pry the bottom panel with a plastic tool.

Display quality
HP Pavilion 15 (15-eg0000) comes with a Full HD IPS panel, model number NCP0040. Its diagonal is 15.6″ (39.62 cm), and the resolution – 1920 х 1080p. Additionally, the screen ratio is 16:9, the pixel density – 142 ppi, their pitch – 0.18 x 0.18 mm. The screen can be considered Retina when viewed from at least 60 cm (from this distance, the average human eye can’t see the individual pixels).
Response time (Gaming capabilities)
We test the reaction time of the pixels with the usual “black-to-white” and “white-to-black” method from 10% to 90% and vice versa.

We recorded Fall Time + Rise Time = 31 ms.





Health impact – PWM / Blue Light
PWM (Screen flickering)
Pulse-width modulation (PWM) is an easy way to control monitor brightness. When you lower the brightness, the light intensity of the backlight is not lowered, but instead turned off and on by the electronics with a frequency indistinguishable to the human eye. In these light impulses, the light/no-light time ratio varies, while brightness remains unchanged, which is harmful to your eyes. You can read more about that in our dedicated article on PWM.

HP Pavilion 15 (15-eg0000)’s backlight is not PW-modulated above 80 nits of brightness. This makes it comfortable in general usage, but should you use it in dark environments, there will be a nasty 200Hz flickering (make sure you use to put the brightness above 43%, or get our Health-Guard profile, which eliminates the issue).

Conclusions
HP Pavilion 15 (15-eg0000)’s IPS panel has a Full HD resolution, comfortable viewing angles, and a very good contrast ratio. Unfortunately, the display uses aggressive PWM below 80 nits of brightness, but this issue can be resolved either by using the laptop with a brightness setting of above 43% or by getting our Health-Guard profile. Additionally, the display uses a very narrow color space, covering only 52% of the sRGB gamut.

Comments

Post a Comment

Popular posts from this blog

How Google Works | How Google Ranks Websites | Top 5 Things Google Looks For

Image
How Google Works This chapter explains those elements of the Google ranking process that will matter most to you. It is not meant however to be an exhaustive inside look of how Google works - only a handful of persons at Google know this. Google, like other search engines, uses automated software to read, analyze, compare, and rank your web pages. So you need to know what elements and factors Google cares about, and how important these factors are in relation to each other. Because this is an important concept, it will be repeated: Google uses automated software to analyze your website - not human beings. Which means that visual elements of your website that may matter to you - like layout, color, animation, Flash, and other graphics are ignored by Google. The Google search engine is like a blind person reading a book in Braille - anything that is graphical, spatial, or visual in nature is simply not seen. As such, you need to start thinking like the Google search engine. So What Is a ...
Read more

Writing of technical review article (MAR Activity): Samsung Galaxy A31

Image
MAR Activity 2022 University roll-10300120211 Review article: Samsung Galaxy A31    Samsung Galaxy A31: Design and Build Samsung is doing better than most other Android players when it comes to phone designs. The Galaxy A31 follows the brand’s unified design language for 2020. There is the ‘Glasstic’ back with a subtle, elegant pattern and a rectangular camera module. The metal-finish side frame is also actually polycarbonate and that helps restrict the weight. The light and well-balanced profile coupled with ergonomic curves on the back makes the Galaxy A31 comfortable to hold and operate – even when there’s a massive 5000mAh battery residing within. The phone has a USB Type-C port and retains the 3.5mm audio jack. There is an optical in-display fingerprint sensor that is working fast and reliable as of now. Samsung Galaxy A31: Display  Samsung  expectedly uses a high contrast AMOLED panel (6.4-inches) on the Galaxy A31 with Full HD+ resolution. Users can choose bet...
Read more