Industry News

Technical functions of OLED Display

2021-07-05
Organic light-emitting diode (OLED) displays are becoming more and more common, most notably in products such as mobile phones, media players, and small entry-level TVs. Unlike standard liquid crystal displays, OLED pixels are driven by current sources. To understand how and why OLED power supply affects display quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED display technology, and discuss the main power supply requirements and solutions. In addition, it will also introduce an innovative power supply architecture specifically for OLED power supply requirements.
Backplane technology creates flexible displays  High-resolution color active matrix organic light-emitting diode (AMOLED) displays require an active matrix backplane, which uses active switches to switch each pixel. The liquid crystal (LC) display amorphous silicon process has matured and can supply low-cost active matrix backplanes and can be used in OLEDs. Many companies are developing organic thin film transistor (OTFT) backplane manufacturing processes for flexible displays. This process can also be used for OLED displays to achieve the introduction of full-color flexible displays. Regardless of whether it is a standard or flexible OLED, the same power supply and driving technology are required. To understand OLED technology, its functions, and its interaction with power supply, it is necessary to deeply analyze the technology itself. OLED display is a self-luminous display technology that does not require any backlight at all. The materials used in OLED are organic materials suitable for chemical structure. OLED technology requires a current-controlled driving method  OLED has electrical characteristics quite similar to standard light-emitting diodes (LED), and the brightness depends on the LED current. To turn on and off the OLED and control the OLED current, a thin film transistor (TFT) control circuit is required.
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