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OLED screens are more likely to cause eye fatigue than OLED screens are more likely to cause eye fatigue than

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OLED screens are more likely to cause eye fatigue than LCDs

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Xiaomi Mi 10T Pro

DxOMark has published a long article on the causes of screen flickering on mobile phones and whether they can adversely affect vision. The source claims OLED screens are more likely to cause eye fatigue than LCDs.

The article points out that flickering occurs due to constantly turning the screen on and off. The pupil expands and contracts in response to changes in brightness. This involuntary physiological response explains why our eyes get tired after watching the screen for a long time. They are constantly active.

The light source power mode of LCDs and OLEDs dictates that these two technologies will have a flickering effect, however, the flickering effect of OLEDs is usually more pronounced than LCDs. The PWM (Pulse Width Modulation) frequency range of OLED screens is 50 to 500 Hz, and the PWM frequency of the LCD is over 1000 Hz. The human eye is sensitive to flicker at 250Hz, so OLED screens are more likely to cause eye fatigue than LCDs.

DxOMark also lists the refresh rates and PWM frequencies of various mobile phone models. Among them, the mobile phone Samsung Galaxy S20 Ultra 5G, which is equipped with an OLED panel with a refresh rate of 60 Hz, has a PWM frequency of only 241 Hz. It easily causes eye fatigue. The same goes for the Samsung Galaxy S20 Ultra 5G. The PWM frequency of the Xiaomi Mi 10T Pro smartphone with a 144Hz refresh rate LCD panel reaches 2360Hz, which is much higher than the flicker sensitivity of the human eye.

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Impressive new photo from the Hubble Space Telescope: “Dive into the astronomical treasure trove”

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Impressive new photo from the Hubble Space Telescope Dive into

The Hubble Space Telescope website has published a new impressive photo. The photograph captures the brilliant globular cluster NGC 6569 in the constellation Sagittarius.

Impressive new photo from the Hubble Space Telescope:

As noted on the website under Image of the Week, the observatory explored the “heart” of the cluster with its Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys, revealing “a brilliant array of stars in this astronomical treasure chest.” The authors of the note poetically invite everyone who wants to carry out “Immersion in the astronomical treasury”.

Globular clusters are stable, closely related clusters containing tens of thousands to millions of stars. The intense gravitational pull of these dense star clusters means that globular clusters are a regular spherical shape with a “populous center” – as seen in the center of this image.

Previously, researchers have avoided globular clusters close to the center of the Milky Way, as dust scattered throughout the center of our galaxy blocks light from these clusters and changes the colors of the stars within them. The latter factor is especially important for astronomers studying stellar evolution, since the colors of stars can give astronomers an idea of ​​their age, composition, and temperature.

Recall that the Hubble Space Telescope is a joint project of the US Aeronautics and Space Administration NASA and the European Space Agency (ESA)

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The Pixel 7 Pro could be a catastrophic loser to the new flagships. SoC Tensor 2 parameters data appeared

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The Pixel 7 Pro could be a catastrophic loser to

The Pixel 7 Pro smartphone will be released this fall, which means that at first it will have to compete with flagships based on Snapdragon 8 Gen 1, 8 Plus Gen 1 and Dimensity 9000, and in the second half of its life cycle already with the new Qualcomm and MediaTek platforms. But new data indicates that, at least in terms of performance, there will be a very large gap between Google’s new product and future flagships.

The Pixel 7 Pro could be a catastrophic loser to the new flagships.  SoC Tensor 2 parameters data appeared

The Pixel 7 Pro prototype revealed some details about the configuration of the smartphone. In particular, about his SoC Tensor 2.

The new platform will retain the 2+2+4 configuration. At the same time, the junior cores will still be Cortex-A55. Early leaks indicated that two Cortex-X1 cores would also migrate to Tensor 2 with the current SoC. That is, only two middle nuclei remain unknown. The current Tensor has a Cortex-A76 pair.

Considering that already current platforms use Cortex-X2, Cortex-A710 and Cortex-A510 cores, the performance difference between the conventional Galaxy S23 Ultra and the Pixel 7 Pro should be huge. It is great even now, when Tensor is compared with Snapdragon 8 Gen 1, but if Tensor 2 as a whole is very similar to the current platform, the difference can become about two times if you focus on the same AnTuTu benchmark. Although we don’t know anything about the GPU yet, so at least on this point no conclusions can be drawn.

As for the rest, the Pixel 7 Pro gets a new Samsung S6E3HC4 panel that delivers a maximum brightness of 1000 cd/m2 against 800 cd/m2 on the Pixel 6 Pro.

We should also expect improvements in haptic feedback technology, as the smartphone will receive a new generation Cirrus Logic CS40L26 chip.

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The affordable Samsung Galaxy A23 5G will be nearly as powerful as the best-selling Galaxy A53 5G. The main parameters of the novelty became known

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The affordable Samsung Galaxy A23 5G will be nearly as

Samsung is preparing to expand its Galaxy Ax3 line of smartphones with the Galaxy A23 5G.

The affordable Samsung Galaxy A23 5G will be nearly as powerful as the best-selling Galaxy A53 5G.  The main parameters of the novelty became known

Galaxy A23 4G

Recall that the Galaxy A23 was released back in March. It is based on the SoC Snapdragon 680, which means it offers good performance, but does not have 5G support.

As it has now become known, the Galaxy A23 5G will be more powerful. Geekbench software indicates the presence of a Snapdragon 695 smartphone. This platform offers not only connectivity to fifth-generation networks, but also about one and a half times greater performance. What’s also important is the fact that, at least in benchmarks, the Snapdragon 695 is almost equal to the new Exynos 1280, meaning the Galaxy A23 5G will be roughly comparable to the much more expensive Galaxy A53 5G.

The test copy was also equipped with 4 GB of RAM, but we should expect versions with more volume. As for the rest of the parameters, they are not yet available. The Galaxy A23 4G features a 6.6-inch 90Hz IPS screen, a 50MP primary camera, and a 5000mAh battery.

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