Aside from the entry-level phones, most of the smartphone company uses OLED panels to provide a high and more durable viewing experience that worth their money. However, even a high-priced, OLED screen-equipped phone could bring you headaches or eye strain.
There could be a number of reasons for these head and eye-related issues found in a smartphone’s display including high brightness, blue light, and incorrect colors. There’s one more thing you need to about the display issue called Screen Flickering.
What is Screen Flickering:
It’s a bit of a technical description, so bear with me here.
Flicker is a quick oscillation of light output between on and off; it is measured in hertz (Hz) to quantify the frequency at which the oscillation occurs. While we may not be consciously aware of the flicker phenomenon, it’s important to understand that our eyes still physically respond to it — that is, our irises expand and contract in response to these changes in brightness.
This involuntary physiological response can certainly explain why we may have a headache and particularly why our eyes can feel tired after looking at a display for an extended period of time — they have been working hard! (This is especially true when looking at a display in dark ambient conditions, such as reading in bed with the lights turned off, for reasons we’ll check on this more below.)
What Cause Flicker:
It is unfortunate that flicker on their displays (especially OLED displays) is still an issue for many people. That’s not the issue, but why do they flicker?
Let’s take a dig at Flicker:
Smartphones either come with LCD (liquid crystal display) or OLED (organic light-emitting diode) technology. LCDs don’t emit their own light, rather, they are back-illuminated by a strip of LEDs whose light intensity is quite powerful so as to compensate for the brightness drop due to the low transmission rate of the LCD panel (caused mainly by the RGB color filter). By contrast, in an OLED display, every pixel is itself an OLED that produces its own light.
Both LCDs and OLED displays are composed of light-emitting diodes, therefore, a diode’s intrinsic physical properties, cannot be dimmed by changing the intensity of the current (mA) without changing the color of the light.
How manufacturers dim Displays?
According to DXOMARK, Using a technique called pulse-width modulation (PWM), which is responsible for turning the diodes off and on at varying rates. Because, we normally should not be able to see this switching between off and on (in other words, flickering!), it’s a trick for our brains that precise that the screen as simply dimmer overalls (a phenomenon is known as the “brain averaging effect”).
The dimming depends on how long the diodes are off versus how long they are on, the longer they’re off, the dimmer the screen will appear.
So both LCDs and OLED displays power their light sources differently, but both technologies are subject to flicker effect; however, it is usually more noticeable on OLED displays than on LCDs.
For one thing, OLED displays and LCDs show PWM at different frequency ranges — the PWM of OLED displays range from 50 to 500 Hz, whereas the PWM of LCDs starts at around 1000 Hz or higher. Second, as the human eye may experience flicker sensitivity up to about 250 Hz (at least for most people), it should come as no surprise that OLED displays are more likely to cause eyestrain than LCDs.
Huawei EMUI 11:
These same issues are also presented in high-end Huawei devices and with recent versions of EMUI, Huawei has sent a new feature called flicker reduction to reduce the screen flickering.
This feature will reduce the number of your screen flickers and may also affect its color and brightness but one thing know that it also consumes power.
- Open Settings
- Display & brightness
- Eye comfort, then enable or disable Flicker reduction
Huawei published new vehicle patent, provides faster and safer unlocks
Recently, Huawei has published a new vehicle unlocking patent, which has been approved on the 23rd of July 2021. This patent aims to provide a quicker and safer unlocking method for zero effort access.
As per the information, on 29th February 2021, Huawei has applied for a patent entitled “Vehicle unlocking method, system, device, vehicle and storage medium”. This patent has been published with the publication number CN113165598A in China.
Speaking of this new patent, it will work on the voice determination mechanism to identify the authorized user and provide him/her access in one call. This new technology will optimize the unlocking methods for sure as everyone wants extra convenience for them.
Furthermore, the method embodied by this vehicle unlocking method works on precise and high computing algorithms. We can describe the procedure in the following terms-
- First, this method used an efficient voice capturing method to identify the keyword that is “Wake-UP”
- If the voice message contains the wake-up word, the user gets permission of access after passing the next step
- Afterward, the source of direction is determined
- The inbuilt camera started to take action and gather the data in image form
- This target camera analysis the field view to determining the user sanding position
- If all processes go smoothly then the system unlocks the vehicle of the user
Previous Patent Information:
On 27th July, Huawei introduced a new flexible glass patent technology for a more refined bending performance of flexible glass. This patent called, “a processing method for improving the bending performance of flexible glass” publish with the announcement number CN113173708A was applied on 3rd March 2022.
Huawei’s new flexible glass technology can improve its bending capability
On 27th July, Huawei introduced a new flexible glass patent technology for a more refined bending performance of flexible glass. This new technology aims to bring some extra convenience for users.
As per the information, Huawei published a new patent entitled “a processing method for improving the bending performance of flexible glass” with the announcement number CN113173708A.
The idea to bring this technology came a few months ago and the company applied to patent this technology in March this year. This new method can help to significantly increase the bending implementation of the flexible glass.
Flexible glass patent Technology:
The patent document describes the method for more refined bending performance of flexible glass. The working procedure is described below-
- The multilayer glued flexible glass passes under the scratch, cut, debond, and chemically strengthening procedure to reach the maximum level of bending capability.
- The multi-layer glass contains a foundation base that is placed at the bottom layer and a minimum of one iterated unit layer glued to the upper layer of the foundation base.
- Furthermore, the iterated unit layer combines a flexible glass located in the bottom layer and a substrate glued to the upper layer of the flexible glass
- At last, the repeating unit layers are glued and covered together
Last week Huawei published the video call sharing method patent, which allows sharing a video call with family, friends, colleagues, and other associates. This patent with the publication number CN11314148A was applied back on the 17th of January 2020.
Huawei inaugurated first Arm-based data center in Moscow, Russia
The TaiShan server utilizes the Kunpeng 920 processor developed by Huawei’s semiconductor subsidiary, HiSilicon. Also, this data center was built by Huawei’s Intelligent Computing Systems Department in Moscow, Russia.
Regarding this, Huawei said that the Russian scientific and academic community are using the facility to optimize open source solutions and supercomputing development. The construction of the new facility indicates the company’s aim to develop software products in Russia.
Kunpeng 920 Processor:
In 2019, Huawei launched the Kunpeng 920 processor along with the first ARM-based server CPU to deliver higher performance. This processor was based on ARMv8 architecture, the 7nm Kunpeng 920 comes with 64 cores and operates at 2.6GHz, with eight channels of DDR4 memory.
To be mentioned, Huawei has promised $1.5 billion to help develop Arm-native applications in an effort to help it overcome sanctions. Last month, the Chinese tech firm announced it was working with Sitronics to develop hardware that meets domestic localization requirements.
In addition, the Nikiya Solodun intelligent computing systems expert at Huawei Russia stated that:-
“The computing cluster will enable our partners and customers to test their software products, to join the construction of a new open ecosystem”
“Prior to the commissioning of this data center, we had to spend resources on the delivery of equipment and deployment of servers at the customer’s sites, now it is possible to provide both remote and local access to equipment with virtually no time delays.”
Huawei said however the ARM processor are dominant in mobile technology but it can be a replacement to the x86 architecture in the data centers. On the other hand, Ampere, Fujitsu, and Microsoft are also preparing to launch ARM CPUs for the server market.
Huawei Russia’s Intelligent Computing System Department Director- Liu Yu said:
“High-performance Arm cores have proven themselves well not only in tasks with numerous parallel computing, such as big data, virtualization systems, databases, storage systems, but also other tasks.
The tests carried out have shown that in a number of scenarios Arm servers can already compete fully with solutions based on the x86 architecture,” said Liu Yu.
Furthermore, Arm can be acquired by US cooperation Nvidia if regulators will let it, which could also make this matter more complicated.
(Source: Data Center)