IGZO and AMOLED display technology comparison

- Mar 08, 2019-

lcd screen

Regarding the development of LCD technology in the future, there has been a lot of debate in the industry, but with the acceleration of product upgrading, more and more people tend to replace LCDs with OLEDs, in order to say LCD instead of LED here. What is the TV? Because LED is not an independent TV display technology, but an LCD TV with LED backlight, the core is LCD. Due to the cutting technology of the liquid crystal panel, the small screen display device is always easier to adopt the updated display panel technology, so the overall development direction of the future liquid crystal display device can be seen from the small-sized display device. From the current market situation, Samsung's AMOLED is recognized as a next-generation display technology with excellent display performance, and the legendary IGZO display technology that the iPhone will adopt in the future is also expected. What are the differences between the two technologies? What are the advantages and disadvantages?

Let me talk about AMOLED, the full name of English Active Matrix/Organic Light Emitting Diode, which is a kind of OLED (OrganicLight-EmittingDisplay) technology. OLED is a phenomenon in which light is emitted by carrier injection and recombination driven by an electric field by an organic semiconductor material and a luminescent material. The OLED can emit light by using ITO transparent electrode and metal electrode as the anode and cathode of the device respectively. Under a certain voltage, electrons and holes are injected from the cathode and the anode to the electron and hole transport layers, respectively, and the electrons and holes respectively pass through the electron. And the hole transport layer migrates to the light-emitting layer and meets in the light-emitting layer to form excitons and excite the light-emitting molecules, and the latter emits visible light through radiation relaxation. AMOLED has the characteristics of faster reaction speed, higher contrast and wider viewing angle. At present, Samsung Electronics attaches great importance to this new display technology, accounting for 99% of the market share.