Software display technology for the future of AMOLED
What is AMOLED
AMOLED(Active Matrix/Organic Light Emitting Diode) is an active matrix organic light emitting diode. Compared with traditional LCD panels, AMOLED has the characteristics of faster reaction speed, higher contrast, and wider viewing Angle.
In AMOLED, OLED(organic light-emitting diode) describes a specific type of thin-film display technology – organic excited light display, and AM (Active Matrix) refers to the pixel addressing technology behind it. As of 2011, AMOLED technology is used in mobile phones and media players, and continues to evolve towards low power consumption, low cost, and large size.
AMOLED displays pre-stored or integrated TFT light emitted by electrical excitation of the OLED matrix molecules, acting as a set of switches to control the current flow to each pixel. TFT backplane technology is the key to manufacturing AMOLED displays. Today, two major TFT backplane technologies, polysilicon and amorphous silicon, have been applied to AMOLED.
The advantages of AMOLED are self-luminous, wide viewing Angle, and high alignment. AMOLED has a higher refresh rate and significantly lower energy consumption than passive OLeds, which makes AMOLED ideal for use in power-sensitive portable electronic devices. The downside is that AMOLED displays can be difficult to see in direct sunlight.
AMOLED is a kind of OLED technology, and we analyze the working principle of OLED.
OLED(OrganicLight-EmittingDisplay, organic light-emitting display) refers to the phenomenon of organic semiconductor materials and light-emitting materials driven by electric fields, through carrier injection and composite resulting in light. The principle of OLED luminescence is to use ITO transparent electrode and metal electrode as the anode and cathode of the device respectively. Driven by a certain voltage, electrons and holes are injected from the cathode and anode to the electron and hole transport layer respectively, and the electrons and holes migrate to the luminescent layer through the electron and hole transport layer respectively, and meet in the luminescent layer to form excitons and excite the luminescent molecules. The latter emits visible light through radiative relaxation. The radiation light can be observed from the ITO side, and the metal electrode film also acts as a reflector.
It is not difficult to find that OLED has thinner and lighter, active luminescence (no backlight required), no viewing Angle problems, high clarity, high brightness, fast response, low energy consumption, wide temperature range, strong seismic ability, low cost and soft display, many of which are difficult to achieve TFT LCD panels.