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fundamental

The article suggest that OLED is fundamentally different from inorganic LED. Seems to me not so fundamental. Both are based on radiative recombination of electron-hole pairs. LEDs using GaP, and other indirect gap materials, also use exciton recombination. Two layer materials can be described as pn junctions. In addition, non-radiative recombination due to defects is the usual cause for reduced emission with age. Gah4 (talk) 20:31, 2 January 2022 (UTC)[reply]

In fact, the claim that OLEDS "are fundamentally different from LEDs" flatly contradicts the first sentence of the article, which says that OLED is "a type of" LED. Dtilt (talk) 02:58, 6 August 2024 (UTC)[reply]

Confusing Section in intro, perhaps could do with slight rewording for clarification?

OLED is fundamentally different from LED which is based on a p-n diode structure. In LEDs doping is used to create p- and n- regions by changing the conductivity of the host semiconductor. OLEDs do not employ a p-n structure. Doping of OLEDs is used to increase radiative efficiency by direct modification of the quantum-mechanical optical recombination rate. Doping is additionally used to determine the wavelength of photon emission.^[1]

^ Pearsall, Thomas (2010). Photonics Essentials, 2nd edition. McGraw-Hill. ISBN 978-0-07-162935-5. Archived from the original on 17 August 2021. Retrieved 24 February 2021.

This section seems to contradict the rest of the intro, where OLED is described as a type LED technology (as it is in the article's infobox). The link simply points to the LED article. I'm not an expert at all on this topic, but perhaps it's meant to mean that OLED displays are "fundamentally different" from "LED" in the sense meant at LED display? Or, alternatively, perhaps it means that LEDs as found in OLEDs are different from conventional/regular LEDs as used in lighting (if that's a meaningful distinction to make here; again, I'm no expert). In any case, at present, the article starts by saying that an OLED is a type of LED (“An organic light-emitting diode (OLED or organic LED), also known as organic electroluminescent (organic EL) diode, is a light-emitting diode (LED) in which[...]”), and then proceeds to say that OLED is fundamentally different from LED. Both cannot be true; I think this could do with some re-wording/clarification. Perhaps I'm missing/misunderstanding something and there is no contradiction, but if that's the case then I believe the wording should be updated so that the more specific meaning (whatever it be) is more readily apparent. --Tomatoswoop (talk) 16:06, 30 July 2022 (UTC)[reply]

Fundamentally, both depend on electron-hole radiative recombination. (That is, making light.) The physics of crystalline semiconductors are not so hard to figure out, and describing the motion of electrons and holes is somewhat usual. The physics of OLED is much more complicated to explain. They are not nice, highly ordered, crystals like used for transistors and usual LEDs. It is likely that the quantum efficiency is lower, too. Gah4 (talk) 00:42, 20 September 2024 (UTC)[reply]

Have added that LEDs are based on crystalline solid structures, whereas OLEDs are based on organic materials.--BBCLCD (talk) 07:04, 20 September 2024 (UTC)[reply]

Banding

There's no mention of banding at low brightness values. I don't have any reliable source, for now 66.98.85.105 (talk) 16:30, 27 January 2023 (UTC)[reply]

OLED vs. LCD LED: The Debate on Technological Superiority Remains Unresolved

Although OLED displays have gained popularity in recent years due to their deep blacks and vibrant colors, there are no modern references that conclusively prove they are superior to LCD LED screens in all aspects. LCD LED screens have made significant advancements, offering high brightness levels, excellent color accuracy, and greater durability, especially in environments with prolonged light exposure. Moreover, issues like burn-in in OLED and the higher cost remain important factors to consider. In various recent studies and tests, both technologies show strengths in different contexts, suggesting that the choice between OLED and LCD LED depends more on specific user needs than on a clear technological superiority. Therefore, it cannot be conclusively stated that one completely outperforms the other. 2806:103E:16:8DD0:DEB6:78E0:7932:6C6 (talk) 20:51, 19 September 2024 (UTC)[reply]

We'd need a citation to mention any of that in the article. See WP:NOR and WP:V for details. MrOllie (talk) 20:56, 19 September 2024 (UTC)[reply]

The 'Better power efficiency' section under 'Advantages' should be removed because the only reference provided, number 112, links to a webpage with no scientific rigor or accredited study on the energy efficiency of OLED displays." 2806:103E:16:8DD0:DEB6:78E0:7932:6C6 (talk) 21:12, 19 September 2024 (UTC)[reply]

LCDs have a back light, with the LCD controlling how much light comes through. OLEDs generate their own light, depending on the supplied current. That is, LCDs run with pretty much constant power, where OLEDs change the power level depending on the image. That said, one has to consider the quantum efficiency of OLED, which might be much less than LED. In any case, the efficiency will depend on the image, so one could only give an average. Gah4 (talk) 00:30, 20 September 2024 (UTC)[reply]

Large LCD panels such as TV screens with sectorial backlighting (for example using multiple monolithic miniature LEDs) control the local intensity of the backlight according to the local image content in front. Dark image areas are less illuminated. Therefore, such LCDs don't run with constant power and have greatly reduced power consumption when the entire image is dark.--BBCLCD (talk) 07:21, 20 September 2024 (UTC)[reply]

[pears1-1] Pearsall, Thomas (2010). Photonics Essentials, 2nd edition. McGraw-Hill. ISBN 978-0-07-162935-5. Archived from the original on 17 August 2021. Retrieved 24 February 2021.

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