Why Do We Use OLED for Small Displays
Posted By: swicn
Date: 05/07/2021
Why do we use OLED
OLED displays work without backlight because they emit visible light. Thus, it can display deep black levels and can be thinner and lighter than liquid crystal displays (LCD). In low ambient light conditions (such as a dark room), OLED screens can achieve a higher contrast ratio.
Lower cost in the future
In the future, OLEDs can be hopefully printed onto any suitable substrate by an inkjet printer or even by screen printing, theoretically making them cheaper to produce than LCD or plasma displays.
Lightweight and flexible plastic substrates
OLED displays can be fabricated on flexible plastic substrates, leading to the possible fabrication of flexible organic light-emitting diodes for other new applications, such as roll-up displays embedded in fabrics or clothing. If a substrate like polyethylene terephthalate (PET) can be used, the displays may be produced inexpensively. Furthermore, plastic substrates are shatter-resistant, unlike the glass displays used in LCD devices.
Better picture quality
OLEDs enable a greater contrast ratio and wider viewing angle compared to LCDs, because OLED pixels emit light directly. This also provides a deeper black level, since a black OLED display emits no light. Furthermore, OLED pixel colors appear correct and unshifted, even as the viewing angle approaches 90° from the normal.
Better power efficiency and thickness
LCDs filter the light emitted from a backlight, allowing a small fraction of light through. Thus, they cannot show true black. However, an inactive OLED element does not produce light or consume power, allowing true blacks. Removing the backlight also makes OLEDs lighter because some substrates are not needed.
Response time
OLEDs also have a much faster response time than an LCD. Using response time compensation technologies, the fastest modern LCDs can reach response times as low as 1ms for their fastest color transition. OLED response times are up to 1,000 times faster than LCD.
What OLEDs does SWI have
SWI provides many solutions such as I2C OLED display, SPI OLED display, SSD1306 OLED display, micro OLED and OLED touch display, which are all passive matrix OLED (PMOLED), OLED dot matrix displays. The mechanical structure includes Chip on Board (COB), Chip on Glass (COG) and TAB (Tape Automated Bonded) types. The product designer can upgrade applications from STN LCD to OLED displays easily.
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