I have not come for a long time, and here so much interesting)))
Plastic13 @ 07/13/19, 06:18
* Amoldov has at least one feature, which personally (and maybe not only me) strained:
too white "stand out" in the dark (very contrasting) background. But mnu eyes with photosensitivity, mnu and irritated eyes from the sun and tears often.
Therefore, with this fight a little low brightness, relatively ips.
I also annoy the brightness of white on the amold (SNS Note3) relative to other colors. On SGS A7 2017 the same hat. The reason, KMK, in the formation of this white - of three pixels at the same level of the brightness of the glow. I see the output only in displays with a white subpixel (for example, in LG G7, Huawei Mate 20) - you can get a uniform brightness of white and other colors. I have not seen OLED with a white subpixel.
Valex13 @ 07/30/19, 16:46
Today had the opportunity to compare the 4 phone option activated DC Dimming: OnePlus 7 Pro, Xiaomi Mi9, Huawei 30, Huawei 30 Pro. On all four when the option is no relief. The head begins to tighten and hurt. It helps neither the effect of night reading or 90Hz mode on OnePlus. So I have a great suspicion that the main problem lies at the level of the operating system (dithering or something else).
I dare to assume that there is no DC DIMMING in smartphones now! Either this is a marketing substitution of concepts that Disti Diming is not equal to the Direct Current Dimming. What is a Direct Current (it is the same current) can be seen from the picture on
wiki:
This is the same and the screen ripple schedule should look, i.e. straight line - without ripples.
What we see in real life:
TykThis is the same PWM, but improved and with the preservation of failures (albeit not so frequent, as in the version without "DC Dimming"). I repeat, permanent current is constant that the brightness of the LED does not change over time!
And notice the difference between the references - she is
240 Hz, and with "DC Dimming" -
60 Hz. Those. Including this option, the frequency of ripples from the PWM becomes equal to the frequency of the screen updates (~ 60 Hz). Yes, the difference in these ripples between the dark and light screen will be less (if you judge the amplitude). However, the very presence of failures seems to hint that the current is not permanent)) from there and the dark band when shooting from the smartphone - and therefore eating ripples, but not so large in amplitude and failures are not so expressed as under the usual PWM. Good
vidoswhere flickering with DC Dimming is visible.
Read full
Article notebookCheckPay attention to the scale in Volta and Millivolt.
Prozak! @ 11.08.19, 20:00
Tatarski3 @ 11.08.19, 19:57 *
20 mate, I understand you, too, did not fit?
Yes, although at IPS.
Eyes went to a knockout in just 10 minutes.
I looked duty cycle schedule 20, and was shocked Mate: it is enormous.
Duck frequency of 14 kHz!
https: //www.notebookch...216.0.html#toc-displayI recalculated the number of pulses per second and received 200,000 imp. / Second (if the US - Miroseconds on the chart). But you are right to the scout. However, 66,666 pulses impossible to notice! But on this smart, I noticed an awesome twinkling of gray in the Display Tester program on Gamma Detection Gray 25%, so I will make a "pencil test" in the dark, check - there is a flicker visible (without any problems notice the flickering of modern amoles in such a test, although fatigue from I do not observe it).
Tatarski3 @ 08/10/19, 15:45
* Valex13, on Samsung C10 the highest quality eye matrix. I went through a bunch of phones because of pain in the eyes, and only from Samsung really kaify. Do not get tired at all. On Vanoplas DS Damming also did not save. The last IPS matrix also looked through the eyes. I do not understand why it is connected with
And not with color temperature? Samsung, unlike some Chinese (Meza, Huaway, etc.) and Korean (LG) so does not push the temperature in cold shades. Compare the white on the screen of your smartphone with a white sheet of paper in the sunlight (not direct, but dispel, of course). I'm on me 20 tried to set up a display for more warm tones, but at the same time he was very much as losing gray, leaving into green shades. But something more or less normal did it. Very lacking a calibration picture (physical) and its equivalent in the smartphone. This Huavaevsky circle is somehow worse than traditional RGB - regulators, where each component can be unscrewed separately. Even from LG V30 I could pull out normal color reproduction with such a regulator.
Yuri2000 @ 08/13/19, 16:52
But, as it turned out, the IPS leading manufacturers also have problems, they wrote about them on this branch. The circumstance is even more confusing that the specialists with IXBT instrumentally find any problems, for example, at Mate 20, like no flickering, etc., and colleagues are written on this branch that from the same Mate 20 eyes hurt and what That duty with him. : rolleyes:
Probably because the pulsation at high frequencies is not considered a problem. The diversity (or rather filling) reflects the duration of the pulse to the measured segment. On the example of the graph with Mate 20, the ratio of the pulse duration to the measured segment is approximately 1/3, that is, about 30%. And here
hereApproximately 80%, that is, most of the segment of the screen glows and only swells for a short time.
Post has been editedkazbeck - 22.08.19, 14:19Reason for editing: Vidos