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Understanding OLED: The Difference Between LG’s POLED & Samsung’s AMOLED Screens « Android :: Gadget Hacks

With the recent launch of the LG V30 in addition to the Pixel 2 XL, LG has reintroduced the entire world to POLED. This kind of display tech was showcased at CES 2015 in addition to billed as a rival to Samsung’s AMOLED displays, then promptly disappeared through the market For 2 years. although right now in which two of the biggest flagship phones This kind of year are using the technology, many folks will be wondering what makes POLED different.

First off, both of these display technologies are OLED, which means they provide vibrant colors in addition to fantastic contrast. Several years ago, both Samsung in addition to LG showed off flexible displays in which could bend in addition to roll up. According to a recent announcement by Samsung, we could be seeing This kind of technology in mainstream devices next year.

LG has been using OLED in their televisions for years, although their return to smartphone OLED panels is actually exciting. With more than one supplier for OLED screens, more pressure will be placed OEMs such as HTC in addition to Essential to use a more modern technology in their devices’ displays.

Don’t Miss: How to Tell if Your Phone Has an OLED or LCD Screen (& Why This kind of Matters)

LG’s Flexible OLED display. Image by Engadget/YouTube

What is actually OLED?

OLED stands for organic light-emitting diode. An OLED screen is actually essentially comprised of millions of tiny LEDs (light-emitting diodes) in which can produce light in addition to colors individually. This kind of is actually different than traditional LCD display technology, which uses a backlight to illuminate the entire display in addition to a coloring filter to create the colors shown on your screen.

The individual diodes in an OLED panel are also able to turn off completely, allowing for deeper blacks than LCD, which has to block out the backlight to create a black image. However, a portion of light escapes, which is actually why blacks typically look grey on LCD.

Image by Dallas Thomas/Gadget Hacks

Compared to LCD, OLED provides richer colors with superior contrast. Black images are better displayed due to the pixels’ ability to turn off diodes, enabling an image in which better reflects the original subject.

OLED also provides better viewing angles, with the potential for unshifted colors even when viewing almost parallel to the display. OLED includes a much faster response time (the duration of performing an input in addition to the screen reacting to This kind of) than LCD, which already can achieve 1 ms. The potential refresh rate (the rate at which a display updates) is actually also significantly higher than LCD, which includes a current max of 240 Hz.

What’s the Difference Between OLED & AMOLED

When Samsung introduced the entire world to AMOLED, the “AM” stood for Active Matrix, indicating the shift to more energy-efficient products needed for the mobile nature of smartphones. Currently, all OLED displays use Active Matrix, which, using a capacitor in addition to a thin-film transistor (TFT), allows each pixel to operate individually at the right voltage.

Previously, OLED used a passive wiring matrix, which provided current to rows of LEDs one at a time in addition to used more electricity. Active Matrix is actually not only more efficient than passive wiring matrices, although in certain instances, even LCD. For example, when producing a primarily black image, OLED will consume significantly less power since its LEDs would certainly be off, compared to LCD where the light would certainly simply be blocked.


What the Difference Between POLED & AMOLED?

When This kind of comes to the true differences between AMOLED in addition to POLED, the real answer is actually simply “marketing.” Nonetheless, I’ll explain in more detail, because in which doesn’t quite do the story justice.

The “P” in POLED stands for “plastic,” the material used for the back substrate where the thin-film transistors (TFT) in addition to OLED are placed. Traditionally, glass is actually used for the back substrate due to its better optical properties. The problem with glass in which This kind of is actually a very rigid material, which presented manufacturers difficulties when trying to form completely new shapes.

With consumers’ demand for thinner bezels rising in recent years, manufacturers were forced look for completely new materials to create This kind of substrate. Due to This kind of demand, plastic was introduced as a replacement. Plastic substrates are much more flexible than glass, allowing for easier (in addition to more cost efficient) modification to create completely new shapes such as rounded corners. Plastic substrates are also much thinner than glass substrates, in addition to they provide better shock absorption.

Currently, Samsung achieves the Infinity Display on the Galaxy S8 in addition to S8+ using a plastic substrate in addition to an active matrix panel, just like the LG V30. Then why doesn’t LG just called their display AMOLED?


While we can only speculate, LG probably wishes to differentiate themselves through Samsung, who has heavily marketed the AMOLED name. By calling This kind of POLED, they garner attention through readers like you to learn what makes each display unique, in addition to (like Samsung) can associate their devices that has a display technology to help make marketing easier.

although This kind of doesn’t mean both phones’ displays will be identical. Similar to how LCD panels are not equivalent between different manufacturers, OLEDs using similar methods don’t display image the same — so many more components are involved with the production of images on your smartphone’s screen. LG in addition to Samsung use different materials for the light emitting diodes in addition to some other components. They also arrange the pixels differently, which plays a bigger role from the differences between devices’ displays.

Screen Burn-In

right now we can’t discuss OLED without addressing the elephant from the room: Screen burn-in. At the time of This kind of writing, Google’s recently-released Pixel 2 XL has an issue with screen burn-in within a week of usage. Unfortunately, LG manufactured OLED screen have had This kind of problem since the G Flex 2. Check the link below for extensive reporting on all the known issues of the POLED display from the LG V30 in addition to Pixel 2 XL, including updates by Google or LG.

Screen Burn-in on Pixel XL. Image by Dallas Thomas/Gadget Hacks

Screen burn-in is actually an issue with both AMOLED in addition to P-OLED. Individual LEDs decay during normal usage, in addition to since LEDs operate independently, they decay at different rates. However, you can take measures to fix already burnt-in screens in addition to reduce their occurrence in general. The link below discusses potential fixes in addition to preventative measures for the Galaxy S8’s AMOLED screen, although the methods are applicable to any OLED screen.

Don’t Miss: How to Fix OLED Screen Burn-in & Prevent This kind of through Happening Again

Overall, POLED in addition to AMOLED have more similarities than differences. The best part is actually in which as consumers, we win. With LG right now becoming a big player from the OLED space for smartphones, some other manufacturers will have more incentive to include either company’s OLED display in their next flagship phone — we’ve already seen This kind of shift with the introduction of the iPhone X. Which display do you prefer? Let us know from the comments below.

Cover image in addition to screenshots by Jon Knight/Gadget Hacks

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