Small-size OLED (organic light-emitting diode) displays are a display technology widely used in smart door locks, smart home appliances, and other small electronic devices. OLED has several significant advantages over traditional LCD screens:

1. Self-luminous characteristics: Each pixel can emit light independently, without the need for backlight support, which makes the OLED screen can display deeper black and higher contrast

2. Strong color performance: it can present richer and saturated colors, and the images are more vivid and lifelike.

3. Wide viewing Angle: Good picture quality can be maintained even when viewed from the side, and there will be no obvious color difference or brightness change.

4. Fast response: It performs particularly well for dynamic content and is suitable for displaying fast-moving images, such as games or video playback.

5. Low energy consumption: Because there is no backlight component and some pixels can be turned off to save power when displaying dark tones, it is generally more energy efficient than LCD.

6. Ultra-thin design: Because of the simple structure, it can be made very thin and light, which is conducive to the overall design of the product.

For different application scenarios, we have developed a variety of specifications of small-size OLED panels, including but not limited to circular, square and other shapes, to meet the design needs of various devices. If you're looking for a specific model or have more specific questions about smaller OLED displays, let us know and we'll be happy to help more.