{"id":8039,"date":"2021-05-04T13:40:04","date_gmt":"2021-05-04T12:40:04","guid":{"rendered":"https:\/\/www.idoc.eu\/blog\/?p=8039"},"modified":"2021-05-04T14:30:47","modified_gmt":"2021-05-04T13:30:47","slug":"lcd-vs-oled-smartphone-screens","status":"publish","type":"post","link":"https:\/\/www.idoc.eu\/blog\/en\/lcd-vs-oled-smartphone-screens\/","title":{"rendered":"LCD vs OLED: The different smartphone screens"},"content":{"rendered":"\n

If you are about to buy a new cell phone, you should carefully consider what you expect from the display. Depending on the technology used – LCD or OLED – you will have to deal with different display characteristics. This blog article offers you decision support and background information on both screen technologies.<\/p>\n\n\n\n

What types of displays are out there?<\/h2>\n\n\n\n

Even though you will have come across some terms like TFT and AMOLED during your research, there are basically only two types of displays: LCDs and OLEDs. There are various subtypes and developments of both technologies, such as the Retina display or Super AMOLED.<\/p>\n\n\n\n

Both technologies are based on thousands of pixels, which together form an image. The better the resolution of your display, the more pixels are in the same area and the less you can see the individual pixels with the naked eye.<\/p>\n\n\n\n

\"Thousands
The more pixels LCD and OLED have, the better you can perceive the overall picture.<\/figcaption><\/figure>\n\n\n\n

The difference between LCD and OLED screens lies in how the individual pixels are made to light up. For an LCD, additional backlighting is needed fto generate an image. With an OLED panel, this is not necessary due to self-luminous diodes.<\/p>\n\n\n\n

LCD & OLED: The base of all display technologies<\/h2>\n\n\n\n

A short deep dive into LCD technology<\/h3>\n\n\n\n

LCD stands for Liquid Crystal Display<\/a>. In this screen technology, the image is generated by liquid crystals. An LCD panel always consists of several “layers”, such as the display glass, the electrode layer for voltage generation and the backlight. The image-producing layer consists of liquid crystals.<\/p>\n\n\n\n

Each liquid crystal forms a pixel. In turn, this consists of a total of three subpixels: red, green and blue. The liquid crystals and thus each subpixel are individually controlled and regulated by electrical voltage. As a result, a wide range of colors including black and white can be generated for each pixel. The liquid crystal layer must be backlit to produce the colors. This means that the display can never darken completely – which is why there is no real deep black in an LCD.<\/p>\n\n\n\n

Briefly explained: the OLED technology<\/h3>\n\n\n\n

The abbreviation OLED stands for Organic Light Emitting Diode. The name already gives an idea of how this type of screen works: Unlike LCDs, a backlight is not necessary because the diodes can light up themselves. Each diode is therefore its own small light source consisting of red, green and blue subpixels. Depending on which image is to be shown on the display, the intensity of the illumination is changed by electrical voltage. This allows a wide variety of colors to be produced. White is created by the combination of red, green and blue pixels. As a result, it usually appears somewhat darker than on an LCD. On the other hand, black image elements are created by simply leaving the diodes completely off. Thus, the black value of OLED displays is especially good.<\/p>\n\n\n\n

Like the LCD, an OLED display also consists of several layers. In addition to the light-emitting diodes, semiconductor layers are needed to control and regulate the diodes.<\/p>\n\n\n\n

Further developments of the main screen technologies<\/h2>\n\n\n\n

Subtypes of LCD technology<\/h3>\n\n\n\n

TFT-Display<\/p>\n\n\n\n