Speaking of oximeters, they are another popular product in the market after masks, fever reducing drugs, and antigens.

There are generally two types of blood oxygen meter displays in the market, OLED displays and TFT color screens.

The 0.96 inch OLED yellow blue dual color display screen - The OLED screen is characterized by a cold light screen and a soft display. The OLED display technology is different from traditional LCD display methods, and does not require backlighting. It uses a very thin organic material coating and a glass substrate (or flexible organic substrate). When there is current passing through, these organic materials will emit light. Moreover, OLED display screens can be made lighter and thinner, with a larger viewing angle, and can significantly save power consumption.

The OLED display screen commonly used in the early stage of blood oximetry is high in unit price and good in display effect. However, this type of OLED display screen is generally set in a single color, and mainstream blood oximeter brands on the market mostly use [sensitive words] font with dark blue font or white font display.

The 0.96-inch TFT color screen - TFT LCD display is characterized by being cheaper than OLED displays, stable in supply, and diverse in color. Due to its extensive use in intelligent wear, the unit price is relatively low. The reason why the 0.96-inch TFT LCD screen will be widely used is mainly because the market for intelligent wear is mainly TFT 0.96, and intelligent wear itself also comes with blood oxygen and heart rate tests. In addition, technically speaking, the interfaces of OLED and TFT screens are very similar, and the technological changes are not significant, so the cost of upgrading is not high, paving the way for the application of TFT in blood oxygen meters.